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Showing 1 to 12 of 556 entries
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Metal-free O-H/C-H difunctionalization of phenols by .

Chemical science

Chen D, Feng Q, Yang Y, Cai XM, Wang F, Huang S.
PMID: 28451289
Chem Sci. 2017 Feb 01;8(2):1601-1606. doi: 10.1039/c6sc04504a. Epub 2016 Nov 04.

An environmentally benign method for C-H/O-H difunctionalization of phenols with sulfoxides under mild conditions has been developed. The reaction process is mediated by an electrophilic aromatic substitution and subsequent selective aryl or alkyl migration, involving C-S and C-O bond...

Sulfur-Containing Monoterpenoids as Potential Antithrombotic Drugs: Research in the Molecular Mechanism of Coagulation Activity Using Pinanyl Sulfoxide as an Example.

Frontiers in pharmacology

Nikitina LE, Kiselev SV, Startseva VA, Bodrov AV, Azizova ZR, Shipina OT, Fedyunina IV, Boichuk SV, Lodochnikova OA, Klochkov VV, Galiullina LF, Khaliullina AV.
PMID: 29515444
Front Pharmacol. 2018 Feb 19;9:116. doi: 10.3389/fphar.2018.00116. eCollection 2018.

In this article we present the synthesis of enantiomerically pure sulfoxide and study the influence of this compound on hemostasis. Detailed NMR studies and molecular dynamics simulations using sodium dodecyl sulfate (SDS) membrane models indicated that the bicyclic fragment...

HOTf-Catalyzed, Solvent-Free Oxyarylation of Ynol Ethers and Thioethers.

The Journal of organic chemistry

Hu L, Gui Q, Chen X, Tan Z, Zhu G.
PMID: 27163354
J Org Chem. 2016 Jun 03;81(11):4861-8. doi: 10.1021/acs.joc.6b00535. Epub 2016 May 17.

A novel HOTf-catalyzed oxyarylation of ynol ethers and thioethers has been realized with aryl sulfoxides as the oxyarylating reagents, providing α-arylated esters or thioesters in good to excellent yields. Notably, all atoms of the starting materials were incorporated in...

Redox-Neutral α-Arylation of Alkyl Nitriles with Aryl Sulfoxides: A Rapid Electrophilic Rearrangement.

Journal of the American Chemical Society

Shang L, Chang Y, Luo F, He JN, Huang X, Zhang L, Kong L, Li K, Peng B.
PMID: 28245112
J Am Chem Soc. 2017 Mar 22;139(11):4211-4217. doi: 10.1021/jacs.7b00969. Epub 2017 Mar 13.

A facile α-arylation of nitriles has been developed by simply introducing Tf

Facile Diastereoseparation of Glycosyl Sulfoxides by Chiral Stationary Phase.

Chirality

Taniguchi T, Asahata M, Nasu A, Shichibu Y, Konishi K, Monde K.
PMID: 27296702
Chirality. 2016 Jul;28(7):534-9. doi: 10.1002/chir.22610. Epub 2016 Jun 14.

Separation of the diastereomers of glycosyl sulfoxides differing in the sulfur chirality has been difficult. This article presents a fast and scalable method for their diastereoseparation using a chiral stationary phase. The usefulness of this method was demonstrated in...

Metal- and additive-free oxygen-atom transfer reaction: an efficient and chemoselective oxidation of sulfides to sulfoxides with cyclic diacyl peroxides.

Organic & biomolecular chemistry

Gan S, Yin J, Yao Y, Liu Y, Chang D, Zhu D, Shi L.
PMID: 28267186
Org Biomol Chem. 2017 Mar 22;15(12):2647-2654. doi: 10.1039/c7ob00021a.

Metal- and additive-free oxidation of a series of sulfides/thioketones has been achieved using cyclic diacyl peroxides as mild oxygen sources. This protocol features simple manipulation, high chemo- and diastereoselectivity, and a broad substrate scope (up to 42 examples), tolerates...

Atom transfer reactions of (TTP)Ti(eta 2-3-hexyne): synthesis and molecular structure of trans-(TTP)Ti[OP(Oct)3]2.

Inorganic chemistry

Thorman JL, Young VG, Boyd PD, Guzei IA, Woo LK.
PMID: 11209607
Inorg Chem. 2001 Jan 29;40(3):499-506. doi: 10.1021/ic0003426.

Atom and group transfer reactions were found to occur between heterocumulenes and (TTP)Ti(eta 2-3-hexyne), 1 (TTP = meso-5,10,15,20-tetra-p-tolylporphyrinato dianion). The imido derivatives (TTP)Ti=NR (R = iPr, 2; tBu, 3) were produced upon treatment of complex 1 with iPrN=C=NiPr, iPrNCO,...

Fluoride Ion Induced Thiophilic Reactivity of Organosilanes with Sulfines: Regiospecific Access to Allyl and Benzyl Sulfoxides.

The Journal of organic chemistry

Capperucci A, Degl'Innocenti A, Leriverend C, Metzner P.
PMID: 11667622
J Org Chem. 1996 Oct 04;61(20):7174-7177. doi: 10.1021/jo960608j.

No abstract available.

Simple and Efficient Method for the Oxidation of Sulfides to Sulfoxides: Application to the Preparation of Glycosyl Sulfoxides.

The Journal of organic chemistry

Kakarla R, Dulina RG, Hatzenbuhler NT, Hui YW, Sofia MJ.
PMID: 11667835
J Org Chem. 1996 Nov 15;61(23):8347-8349. doi: 10.1021/jo961478h.

No abstract available.

Chromatographic resolution and elution order of alkyl aryl and aryl benzyl sulfoxides on cellulose-based chiral stationary phases.

Enantiomer

Donnoli MI, Superchi S, Rosini C.
PMID: 10857057
Enantiomer. 2000;5(2):181-8.

Several alkyl aryl and aryl benzyl sulfoxides have been prepared in optically active form via enantioselective Ti-catalyzed oxidation of the corresponding sulfides. The absolute configuration was assigned on the basis of optical rotation while in the case of some...

Evidence for a nonradical pathway in the photoracemization of aryl sulfoxides.

Journal of the American Chemical Society

Vos BW, Jenks WS.
PMID: 11890804
J Am Chem Soc. 2002 Mar 20;124(11):2544-7. doi: 10.1021/ja017228m.

Photolysis of (R(S),S(C))-1-deuterio-2,2-dimethylpropyl p-tolyl sulfoxide provides mainly (S(S),S(C))-1-deuterio-2,2-dimethylpropyl p-tolyl sulfoxide at low conversion, though the other two stereoisomers are formed to smaller extents. Thus, the predominant process leading to sulfur inversion yields only sulfur inversion, without inversion of the...

Synthetic applications of nonmetal catalysts for homogeneous oxidations.

Chemical reviews

Adam W, Saha-Möller CR, Ganeshpure PA.
PMID: 11840992
Chem Rev. 2001 Nov;101(11):3499-548. doi: 10.1021/cr000019k.

Nonmetal oxidation catalysts have gained much attention in recent years. The reason for this surge in activity is 2-fold: On one hand, a number of such catalysts has become readily accessible; on the other hand, such catalysts are quite...

Showing 1 to 12 of 556 entries