A mild and practical deprotection method for benzyl thioethers
摘要:
A highly effective and mild deprotection method was developed for benzyl thioethers using dibutylmagnesium in the presence of a catalytic amount of titanocene dichloride. This methodology is applicable to both aromatic and aliphatic benzyl thioethers. (c) 2006 Elsevier Ltd. All rights reserved.,
Thiol–ene/oxidation tandem reaction under visible light photocatalysis: synthesis of alkyl sulfoxides
作者:Andrea Guerrero-Corella、Ana María Martinez-Gualda、Fereshteh Ahmadi、Enrique Ming、Alberto Fraile、José Alemán
DOI:10.1039/c7cc05672a
日期:——
The photocatalyzed synthesis of sulfoxides from alkenes and thiols has been carried out using Eosin Y.
烯烃和硫醇的光催化合成已经使用Eosin Y进行。
Nanolayered cobalt–molybdenum sulphides (Co–Mo–S) catalyse borrowing hydrogen C–S bond formation reactions of thiols or H<sub>2</sub>S with alcohols
作者:Iván Sorribes、Avelino Corma
DOI:10.1039/c8sc05782f
日期:——
Nanolayered cobalt–molybdenum sulphide (Co–Mo–S) materials have been established as excellent catalysts for C–S bond construction. These catalysts allow for the preparation of a broad range of thioethers in good to excellent yields from structurally diverse thiols and readily available primary as well as secondary alcohols. Chemoselectivity in the presence of sensitive groups such as double bonds,
Stable and easily available sulfide surrogates allow a stereoselective activation of alcohols
作者:Jérémy Merad、Ján Matyašovský、Tobias Stopka、Bogdan R. Brutiu、Alexandre Pinto、Martina Drescher、Nuno Maulide
DOI:10.1039/d1sc01602d
日期:——
Isothiouronium salts are easilyaccessible and stable compounds. Herein, we report their use as versatile deoxasulfenylating agents enabling a stereoselective, thiol-free protocol for synthesis of thioethers from alcohols. The method is simple, scalable and tolerates a broad range of functional groups otherwise incompatible with other methods. Late-stage modification of several pharmaceuticals provides
Photoinitiated Thiol-Ene “Click” Reaction: An Organocatalytic Alternative
作者:Dimitris Limnios、Christoforos G. Kokotos
DOI:10.1002/adsc.201600977
日期:2017.1.19
The thiol‐ene coupling (TEC) reaction has attracted a lot of scientific attention during the last years, particularly in the fields of polymers, materials and more recently in drug design. The combination of organocatalysis and photocatalysis has enabled the development of an efficient synergistic protocol for the addition of various thiols to a plethora of olefins. Utilizing phenylglyoxylic acid as
Kinetic analysis was used as a tool for rational optimization of a catalytic, direct substitution of alcohols to enable the selective formation of unsymmetrical ethers, thioethers, and Friedel–Crafts alkylation products using a moisture-tolerant and commercially available zirconium complex (2 to 8 mol%). Operating in air and in the absence of dehydration techniques, the protocol furnished a variety