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Trifluoromethanesulfonic acid catalyzed isomerization of kinetic enol derivatives to the thermodynamically favored isomers.

Organic letters

Lee PH, Kang D, Choi S, Kim S.
PMID: 21651307
Org Lett. 2011 Jul 01;13(13):3470-3. doi: 10.1021/ol2012132. Epub 2011 Jun 09.

Trifluoromethanesulfonic acid catalyzed isomerization of kinetic enol derivatives to the thermodynamically favored isomers was developed. Under the present conditions, kinetic enol phosphates, enol acetates and benzoates, and enol sulfonates were smoothly isomerized to produce the corresponding thermodynamically favored isomers...

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Lee PH, Kang D, Choi S, et al. Trifluoromethanesulfonic acid catalyzed isomerization of kinetic enol derivatives to the thermodynamically favored isomers. Org Lett. 2011;13(13):3470-3doi: 10.1021/ol2012132.
Lee, P. H., Kang, D., Choi, S., & Kim, S. (2011). Trifluoromethanesulfonic acid catalyzed isomerization of kinetic enol derivatives to the thermodynamically favored isomers. Organic letters, 13(13), 3470-3. https://doi.org/10.1021/ol2012132
Lee, Phil Ho, et al. "Trifluoromethanesulfonic acid catalyzed isomerization of kinetic enol derivatives to the thermodynamically favored isomers." Organic letters vol. 13,13 (2011): 3470-3. doi: https://doi.org/10.1021/ol2012132
Lee PH, Kang D, Choi S, Kim S. Trifluoromethanesulfonic acid catalyzed isomerization of kinetic enol derivatives to the thermodynamically favored isomers. Org Lett. 2011 Jul 01;13(13):3470-3. doi: 10.1021/ol2012132. Epub 2011 Jun 09. PMID: 21651307.
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Evidence of substituent-induced electronic interplay. Effect of the remote aromatic ring substituent of phenyl benzoates on the sensitivity of the carbonyl unit to electronic effects of phenyl or benzoyl ring substituents.

The Journal of organic chemistry

Neuvonen H, Neuvonen K, Pasanen P.
PMID: 15153011
J Org Chem. 2004 May 28;69(11):3794-800. doi: 10.1021/jo035521u.

Carbonyl carbon (13)C NMR chemical shifts delta(C)(C[double bond]O) measured in this work for a wide set of substituted phenyl benzoates p-Y-C(6)H(4)CO(2)C(6)H(4)-p-X (X = NO(2), CN, Cl, Br, H, Me, or MeO; Y = NO(2), Cl, H, Me, MeO, or...

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Neuvonen H, Neuvonen K, Pasanen P. Evidence of substituent-induced electronic interplay. Effect of the remote aromatic ring substituent of phenyl benzoates on the sensitivity of the carbonyl unit to electronic effects of phenyl or benzoyl ring substituents. J Org Chem. 2004;69(11):3794-800doi: 10.1021/jo035521u.
Neuvonen, H., Neuvonen, K., & Pasanen, P. (2004). Evidence of substituent-induced electronic interplay. Effect of the remote aromatic ring substituent of phenyl benzoates on the sensitivity of the carbonyl unit to electronic effects of phenyl or benzoyl ring substituents. The Journal of organic chemistry, 69(11), 3794-800. https://doi.org/10.1021/jo035521u
Neuvonen, Helmi, et al. "Evidence of substituent-induced electronic interplay. Effect of the remote aromatic ring substituent of phenyl benzoates on the sensitivity of the carbonyl unit to electronic effects of phenyl or benzoyl ring substituents." The Journal of organic chemistry vol. 69,11 (2004): 3794-800. doi: https://doi.org/10.1021/jo035521u
Neuvonen H, Neuvonen K, Pasanen P. Evidence of substituent-induced electronic interplay. Effect of the remote aromatic ring substituent of phenyl benzoates on the sensitivity of the carbonyl unit to electronic effects of phenyl or benzoyl ring substituents. J Org Chem. 2004 May 28;69(11):3794-800. doi: 10.1021/jo035521u. PMID: 15153011.
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Samarium(II)-promoted radical spirocyclization onto an aromatic ring.

The Journal of organic chemistry

Ohno H, Okumura M, Maeda S, Iwasaki H, Wakayama R, Tanaka T.
PMID: 14510548
J Org Chem. 2003 Oct 03;68(20):7722-32. doi: 10.1021/jo034767w.

Samarium(II)-mediated spirocyclization onto an aromatic ring was achieved by the reaction of methyl 4-(4-oxoalkyl)benzoates with SmI(2) in the presence of i-PrOH and HMPA, yielding methyl 1-alkyl-1-hydroxyspiro[4.5]dec-6-ene-8-carboxylates in moderate to high yields. Utilizing this chemistry, spiro[3.5] and -[5.5] systems, and...

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Ohno H, Okumura M, Maeda S, et al. Samarium(II)-promoted radical spirocyclization onto an aromatic ring. J Org Chem. 2003;68(20):7722-32doi: 10.1021/jo034767w.
Ohno, H., Okumura, M., Maeda, S., Iwasaki, H., Wakayama, R., & Tanaka, T. (2003). Samarium(II)-promoted radical spirocyclization onto an aromatic ring. The Journal of organic chemistry, 68(20), 7722-32. https://doi.org/10.1021/jo034767w
Ohno, Hiroaki, et al. "Samarium(II)-promoted radical spirocyclization onto an aromatic ring." The Journal of organic chemistry vol. 68,20 (2003): 7722-32. doi: https://doi.org/10.1021/jo034767w
Ohno H, Okumura M, Maeda S, Iwasaki H, Wakayama R, Tanaka T. Samarium(II)-promoted radical spirocyclization onto an aromatic ring. J Org Chem. 2003 Oct 03;68(20):7722-32. doi: 10.1021/jo034767w. PMID: 14510548.
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Stabilities of trityl-protected substrates: the wide mechanistic spectrum of trityl ester hydrolyses.

Chemistry (Weinheim an der Bergstrasse, Germany)

Horn M, Mayr H.
PMID: 20564285
Chemistry. 2010 Jul 05;16(25):7469-77. doi: 10.1002/chem.200902669.

Ionization rates of para-substituted triphenylmethyl (trityl) acetates, benzoates, and para-nitrobenzoates have been determined in aqueous acetonitrile and aqueous acetone at 25 degrees C. Conventional and stopped-flow techniques have been used to evaluate rate constants ranging from 1.38 x 10(-5)...

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Horn M, Mayr H. Stabilities of trityl-protected substrates: the wide mechanistic spectrum of trityl ester hydrolyses. Chemistry. 2010;16(25):7469-77doi: 10.1002/chem.200902669.
Horn, M., & Mayr, H. (2010). Stabilities of trityl-protected substrates: the wide mechanistic spectrum of trityl ester hydrolyses. Chemistry (Weinheim an der Bergstrasse, Germany), 16(25), 7469-77. https://doi.org/10.1002/chem.200902669
Horn, Markus, and Mayr, Herbert. "Stabilities of trityl-protected substrates: the wide mechanistic spectrum of trityl ester hydrolyses." Chemistry (Weinheim an der Bergstrasse, Germany) vol. 16,25 (2010): 7469-77. doi: https://doi.org/10.1002/chem.200902669
Horn M, Mayr H. Stabilities of trityl-protected substrates: the wide mechanistic spectrum of trityl ester hydrolyses. Chemistry. 2010 Jul 05;16(25):7469-77. doi: 10.1002/chem.200902669. PMID: 20564285.
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Heavyweight "R-SMS-Phos" ligands in the olefins' hydrogenation arena.

Organic letters

Zupancic B, Mohar B, Stephan M.
PMID: 20170147
Org Lett. 2010 Mar 19;12(6):1296-9. doi: 10.1021/ol100184p.

A series of enantiopure P-stereogenic 1,2-bis[(o-RO-phenyl)(phenyl)phosphino]ethane (R-SMS-Phos) ligands wherein R = i-Pr, i-Bu, t-Bu, 3-Pen, and CH(2)TMS was assessed in the Rh(I)-catalyzed hydrogenation of an indicative set of olefins. The best performing t-Bu-SMS-Phos ligand was screened against a wide...

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Zupancic B, Mohar B, Stephan M. Heavyweight "R-SMS-Phos" ligands in the olefins' hydrogenation arena. Org Lett. 2010;12(6):1296-9doi: 10.1021/ol100184p.
Zupancic, B., Mohar, B., & Stephan, M. (2010). Heavyweight "R-SMS-Phos" ligands in the olefins' hydrogenation arena. Organic letters, 12(6), 1296-9. https://doi.org/10.1021/ol100184p
Zupancic, Borut, et al. "Heavyweight "R-SMS-Phos" ligands in the olefins' hydrogenation arena." Organic letters vol. 12,6 (2010): 1296-9. doi: https://doi.org/10.1021/ol100184p
Zupancic B, Mohar B, Stephan M. Heavyweight "R-SMS-Phos" ligands in the olefins' hydrogenation arena. Org Lett. 2010 Mar 19;12(6):1296-9. doi: 10.1021/ol100184p. PMID: 20170147.
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Bicyclo-[2.2.1]hept-2-en-7-yl 4-bromo-benzoate.

Acta crystallographica. Section E, Structure reports online

Lloyd BA, Arif AM.
PMID: 22798870
Acta Crystallogr Sect E Struct Rep Online. 2012 Jul 01;68:o2209. doi: 10.1107/S1600536812027882. Epub 2012 Jun 27.

The structure of the title compound, C(14)H(13)BrO(2), which contains a norbornenyl group and a 4-bromo-benzoate ester at the single C-atom bridge, has been redetermined [see McDonald & Trotter (1965 ▶). Acta Cryst.19, 456-463] to modern standards to establish high-precision...

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Lloyd BA, Arif AM. Bicyclo-[2.2.1]hept-2-en-7-yl 4-bromo-benzoate. Acta Crystallogr Sect E Struct Rep Online. 2012;68:o2209doi: 10.1107/S1600536812027882.
Lloyd, B. A., & Arif, A. M. (2012). Bicyclo-[2.2.1]hept-2-en-7-yl 4-bromo-benzoate. Acta crystallographica. Section E, Structure reports online, 68o2209. https://doi.org/10.1107/S1600536812027882
Lloyd, Barry A, and Arif, Atta M. "Bicyclo-[2.2.1]hept-2-en-7-yl 4-bromo-benzoate." Acta crystallographica. Section E, Structure reports online vol. 68 (2012): o2209. doi: https://doi.org/10.1107/S1600536812027882
Lloyd BA, Arif AM. Bicyclo-[2.2.1]hept-2-en-7-yl 4-bromo-benzoate. Acta Crystallogr Sect E Struct Rep Online. 2012 Jul 01;68:o2209. doi: 10.1107/S1600536812027882. Epub 2012 Jun 27. PMID: 22798870; PMCID: PMC3394005.
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Local orientational analysis of helical filaments and nematic director in a nanoscale phase separation composed of rod-like and bent-core liquid Crystals using small- and wide-angle X-ray microbeam scattering.

The journal of physical chemistry. B

Takanishi Y, Yao H, Fukasawa T, Ema K, Ohtsuka Y, Takahashi Y, Yamamoto J, Takezoe H, Iida A.
PMID: 24624998
J Phys Chem B. 2014 Apr 10;118(14):3998-4004. doi: 10.1021/jp410201t. Epub 2014 Apr 01.

We analyzed the local nanostructure in binary mixtures of rod- and bent-shaped molecules, n-pentyl-4-cyanobiphenyl (5CB) and 1,3-phenylene bis[4-(4-n-octyloxyphenyliminomethyl) benzoates] (P-8-OPIMB), respectively, using small- and wide-angle X-ray microbeam and macrobeam scattering. From the orientational X-ray scattering patterns, we concluded that...

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Takanishi Y, Yao H, Fukasawa T, et al. Local orientational analysis of helical filaments and nematic director in a nanoscale phase separation composed of rod-like and bent-core liquid Crystals using small- and wide-angle X-ray microbeam scattering. J Phys Chem B. 2014;118(14):3998-4004doi: 10.1021/jp410201t.
Takanishi, Y., Yao, H., Fukasawa, T., Ema, K., Ohtsuka, Y., Takahashi, Y., Yamamoto, J., Takezoe, H., & Iida, A. (2014). Local orientational analysis of helical filaments and nematic director in a nanoscale phase separation composed of rod-like and bent-core liquid Crystals using small- and wide-angle X-ray microbeam scattering. The journal of physical chemistry. B, 118(14), 3998-4004. https://doi.org/10.1021/jp410201t
Takanishi, Yoichi, et al. "Local orientational analysis of helical filaments and nematic director in a nanoscale phase separation composed of rod-like and bent-core liquid Crystals using small- and wide-angle X-ray microbeam scattering." The journal of physical chemistry. B vol. 118,14 (2014): 3998-4004. doi: https://doi.org/10.1021/jp410201t
Takanishi Y, Yao H, Fukasawa T, Ema K, Ohtsuka Y, Takahashi Y, Yamamoto J, Takezoe H, Iida A. Local orientational analysis of helical filaments and nematic director in a nanoscale phase separation composed of rod-like and bent-core liquid Crystals using small- and wide-angle X-ray microbeam scattering. J Phys Chem B. 2014 Apr 10;118(14):3998-4004. doi: 10.1021/jp410201t. Epub 2014 Apr 01. PMID: 24624998.
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Cobalt-Catalyzed Electrophilic Amination of Aryl- and Heteroarylzinc Pivalates with N-Hydroxylamine Benzoates.

Angewandte Chemie (International ed. in English)

Chen YH, Graßl S, Knochel P.
PMID: 29160920
Angew Chem Int Ed Engl. 2018 Jan 22;57(4):1108-1111. doi: 10.1002/anie.201710931. Epub 2017 Dec 28.

Aryl- and heteroarylzinc pivalates can be aminated with O-benzoylhydroxylamines at 25 °C within 2-4 h in the presence of 2.5-5.0 % CoCl

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Chen YH, Graßl S, Knochel P. Cobalt-Catalyzed Electrophilic Amination of Aryl- and Heteroarylzinc Pivalates with N-Hydroxylamine Benzoates. Angew Chem Int Ed Engl. 2017;57(4):1108-1111doi: 10.1002/anie.201710931.
Chen, Y. H., Graßl, S., & Knochel, P. (2018). Cobalt-Catalyzed Electrophilic Amination of Aryl- and Heteroarylzinc Pivalates with N-Hydroxylamine Benzoates. Angewandte Chemie (International ed. in English), 57(4), 1108-1111. https://doi.org/10.1002/anie.201710931
Chen, Yi-Hung, et al. "Cobalt-Catalyzed Electrophilic Amination of Aryl- and Heteroarylzinc Pivalates with N-Hydroxylamine Benzoates." Angewandte Chemie (International ed. in English) vol. 57,4 (2018): 1108-1111. doi: https://doi.org/10.1002/anie.201710931
Chen YH, Graßl S, Knochel P. Cobalt-Catalyzed Electrophilic Amination of Aryl- and Heteroarylzinc Pivalates with N-Hydroxylamine Benzoates. Angew Chem Int Ed Engl. 2018 Jan 22;57(4):1108-1111. doi: 10.1002/anie.201710931. Epub 2017 Dec 28. PMID: 29160920.
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A novel approach to oxoisoaporphine alkaloids via regioselective metalation of alkoxy isoquinolines.

Beilstein journal of organic chemistry

Melzer BC, Bracher F.
PMID: 28904605
Beilstein J Org Chem. 2017 Aug 08;13:1564-1571. doi: 10.3762/bjoc.13.156. eCollection 2017.

Oxoisoaporphine alkaloids are conveniently prepared via direct ring metalation of alkoxy-substituted isoquinolines at C-1, followed by reaction with iodine. Subsequent Suzuki cross-coupling of the resulting 1-iodoisoquinolines to methyl 2-(isoquinolin-1-yl)benzoates and intramolecular acylation of the corresponding carboxylic acids with Eaton's...

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Melzer BC, Bracher F. A novel approach to oxoisoaporphine alkaloids via regioselective metalation of alkoxy isoquinolines. Beilstein J Org Chem. 2017;13:1564-1571doi: 10.3762/bjoc.13.156.
Melzer, B. C., & Bracher, F. (2017). A novel approach to oxoisoaporphine alkaloids via regioselective metalation of alkoxy isoquinolines. Beilstein journal of organic chemistry, 131564-1571. https://doi.org/10.3762/bjoc.13.156
Melzer, Benedikt C, and Bracher, Franz. "A novel approach to oxoisoaporphine alkaloids via regioselective metalation of alkoxy isoquinolines." Beilstein journal of organic chemistry vol. 13 (2017): 1564-1571. doi: https://doi.org/10.3762/bjoc.13.156
Melzer BC, Bracher F. A novel approach to oxoisoaporphine alkaloids via regioselective metalation of alkoxy isoquinolines. Beilstein J Org Chem. 2017 Aug 08;13:1564-1571. doi: 10.3762/bjoc.13.156. eCollection 2017. PMID: 28904605; PMCID: PMC5564254.
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Aqua-bis-(benzoato-κO)(1,10-phenanthroline-κN,N')zinc(II).

Acta crystallographica. Section E, Structure reports online

Liu JZ, Zhang Z, Shi ZW, Gao P.
PMID: 21522554
Acta Crystallogr Sect E Struct Rep Online. 2010 Dec 04;67:m30. doi: 10.1107/S1600536810049639.

The Zn atom in the title compound, [Zn(C(7)H(5)O(2))(2)(C(12)H(8)N(2))(H(2)O)], is five-coordinate in a distorted trigonal-bipyramidal coordination environment involving two O atoms of two monodentate benzoates, two N atoms of a 1,10-phenanthroline mol-ecule and one O atom of a water mol-ecule....

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Liu JZ, Zhang Z, Shi ZW, et al. Aqua-bis-(benzoato-κO)(1,10-phenanthroline-κN,N')zinc(II). Acta Crystallogr Sect E Struct Rep Online. 2010;67:m30doi: 10.1107/S1600536810049639.
Liu, J. Z., Zhang, Z., Shi, Z. W., & Gao, P. (2010). Aqua-bis-(benzoato-κO)(1,10-phenanthroline-κN,N')zinc(II). Acta crystallographica. Section E, Structure reports online, 67m30. https://doi.org/10.1107/S1600536810049639
Liu, Ji-Zhong, et al. "Aqua-bis-(benzoato-κO)(1,10-phenanthroline-κN,N')zinc(II)." Acta crystallographica. Section E, Structure reports online vol. 67 (2010): m30. doi: https://doi.org/10.1107/S1600536810049639
Liu JZ, Zhang Z, Shi ZW, Gao P. Aqua-bis-(benzoato-κO)(1,10-phenanthroline-κN,N')zinc(II). Acta Crystallogr Sect E Struct Rep Online. 2010 Dec 04;67:m30. doi: 10.1107/S1600536810049639. PMID: 21522554; PMCID: PMC3050171.
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Anti-juvenile hormone activity of ethyl 4-[(7-substituted 1,4-benzodioxan-6-yl)methyl]benzoates and their effect on the juvenile hormone titer in the hemolymph of the silkworm, .

Journal of pesticide science

Yamada N, Maeda K, Masumoto M, Inagaki Y, Furuta K.
PMID: 30363131
J Pestic Sci. 2016 May 20;41(2):38-43. doi: 10.1584/jpestics.D15-072.

A series of ethyl 4-[(7-substituted 1,4-benzodioxan-6-yl)methyl]benzoates was synthesized and evaluated for their anti-juvenile hormone (anti-JH) activities to induce precocious metamorphosis in silkworm (

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Yamada N, Maeda K, Masumoto M, et al. Anti-juvenile hormone activity of ethyl 4-[(7-substituted 1,4-benzodioxan-6-yl)methyl]benzoates and their effect on the juvenile hormone titer in the hemolymph of the silkworm, . J Pestic Sci. 2016;41(2):38-43doi: 10.1584/jpestics.D15-072.
Yamada, N., Maeda, K., Masumoto, M., Inagaki, Y., & Furuta, K. (2016). Anti-juvenile hormone activity of ethyl 4-[(7-substituted 1,4-benzodioxan-6-yl)methyl]benzoates and their effect on the juvenile hormone titer in the hemolymph of the silkworm, . Journal of pesticide science, 41(2), 38-43. https://doi.org/10.1584/jpestics.D15-072
Yamada, Naoko, et al. "Anti-juvenile hormone activity of ethyl 4-[(7-substituted 1,4-benzodioxan-6-yl)methyl]benzoates and their effect on the juvenile hormone titer in the hemolymph of the silkworm, ." Journal of pesticide science vol. 41,2 (2016): 38-43. doi: https://doi.org/10.1584/jpestics.D15-072
Yamada N, Maeda K, Masumoto M, Inagaki Y, Furuta K. Anti-juvenile hormone activity of ethyl 4-[(7-substituted 1,4-benzodioxan-6-yl)methyl]benzoates and their effect on the juvenile hormone titer in the hemolymph of the silkworm, . J Pestic Sci. 2016 May 20;41(2):38-43. doi: 10.1584/jpestics.D15-072. PMID: 30363131; PMCID: PMC6140685.
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Body-centred cubic packing of spheres - the ultimate thermotropic assembly mode for highly divergent dendrons.

Nanoscale horizons

Yao X, Cseh L, Zeng X, Xue M, Liu Y, Ungar G.
PMID: 32260676
Nanoscale Horiz. 2017 Jan 01;2(1):43-49. doi: 10.1039/c6nh00155f. Epub 2016 Oct 05.

We have synthesized sodium tris(alkoxy)benzoates in which one of the three alkyl chains branches further into three C

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Yao X, Cseh L, Zeng X, et al. Body-centred cubic packing of spheres - the ultimate thermotropic assembly mode for highly divergent dendrons. Nanoscale Horiz. 2016;2(1):43-49doi: 10.1039/c6nh00155f.
Yao, X., Cseh, L., Zeng, X., Xue, M., Liu, Y., & Ungar, G. (2017). Body-centred cubic packing of spheres - the ultimate thermotropic assembly mode for highly divergent dendrons. Nanoscale horizons, 2(1), 43-49. https://doi.org/10.1039/c6nh00155f
Yao, Xiaohong, et al. "Body-centred cubic packing of spheres - the ultimate thermotropic assembly mode for highly divergent dendrons." Nanoscale horizons vol. 2,1 (2017): 43-49. doi: https://doi.org/10.1039/c6nh00155f
Yao X, Cseh L, Zeng X, Xue M, Liu Y, Ungar G. Body-centred cubic packing of spheres - the ultimate thermotropic assembly mode for highly divergent dendrons. Nanoscale Horiz. 2017 Jan 01;2(1):43-49. doi: 10.1039/c6nh00155f. Epub 2016 Oct 05. PMID: 32260676.
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Showing 25 to 36 of 215 entries