Electrochemical Direct Thiolation of Lactams with Mercaptans: An Efficient Access to
<i>N</i>
‐Acylsulfenamides
作者:Zhaoxin Wei、Renjie Wang、Yonghong Zhang、Bin Wang、Yu Xia、Ablimit Abdukader、Fei Xue、Weiwei Jin、Chenjiang Liu
DOI:10.1002/ejoc.202100924
日期:2021.9.7
A variety of N-acylsulfenamides are produced by the electrochemically enabled cross-coupling of readily available feedstocks under standard conditions. This protocol is practical and has wide substrate scope with good reaction efficiency (38 examples, up to 97 % yield). A possible free radical mechanism is preliminarily demonstrated.
Hydrochloric Acid-Promoted Intermolecular 1,2-Thiofunctionalization of Aromatic Alkenes
作者:Xiaomeng Li、Yunlong Guo、Zengming Shen
DOI:10.1021/acs.joc.7b03263
日期:2018.3.2
and different types of nucleophiles. Importantly, extension of nucleophiles can reach aryl ethers, indoles, and carboxylic acids with good reactivity. This practical and convenient method has broad substrate scope and high yields under metal-free and mild conditions. Furthermore, we achieved conversion and application for making sulfoxide and sulfone by oxidation.
Chiral iminophosphorane catalyzed asymmetric sulfenylation of 2-substituted alkylcyanoacetates
作者:Yanxia Zhang、Henry N.C. Wong、Xin-Yan Wu、Jianwei Han
DOI:10.1016/j.tetlet.2020.151755
日期:2020.4
Chiral iminophosphorane organocatalysis enables a wide range of asymmetric transformations with excellent level of enantioselectivity. Herein, an asymmetric sulfenylation of 2-substituted alkylcyanoacetates was achieved with tartaric acid derived chiral iminophosphoranes in an efficient manner. The iminophosphorane catalyst exhibits high catalytic activity, and as a result, the corresponding sulfenylated
Rh(II)-catalyzed sulfur ylide [1,2]-rearrangement of carbenoids generated from aryldiazoacetates has been realized via N-S bondinsertion, generating tertiary sulfides in moderate to excellent yields. This demonstrates the first use of...
Benign synthesis of thiophosphates, thiophosphinates and selenophosphates in neat condition using N-chalcogenoimides as the source of electrophilic sulfur/selenium
作者:Manas Mondal、Amit Saha
DOI:10.1016/j.tetlet.2019.150965
日期:2019.8
reaction protocol has been developed for synthesis of thiophosphate, thiophosphinate and selenophosphate compounds. N-chalcogenoimides have been used for chalcogenylation of P(O)H moieties of various H-phosphonates under solvent, catalyst and base free condition at room temperature in aerial atmosphere. Both S-aryl and S-alkyl phosphorothioate compounds were prepared by this method in good yields. Selenophosphates