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.
FeCl<sub>3</sub>-Catalyzed Regio-Divergent Carbosulfenylation of Unactivated Alkenes: Construction of a Medium-Sized Ring
作者:Leiyang Lv、Zhiping Li
DOI:10.1021/acs.joc.8b01621
日期:2018.9.21
carbosulfenylation of unactivated alkenes with electrophilic N-sulfenophthalimides has been developed. This protocol provides a straightforward and efficient access to various medium-sized rings, especially strained 7- and 8-membered carborings with a sulfur atom attached. The endo/exo selectivity in the reaction depends on the atom number of the chain between arene and alkene. Broad substrate scope, high
Copper‐Catalyzed Electrophilic Thiolation of Organozinc Halides by Using
<i>N</i>
‐Thiophthalimides Leading to Polyfunctional Thioethers
作者:Simon Graßl、Clémence Hamze、Thaddäus J. Koller、Paul Knochel
DOI:10.1002/chem.201806261
日期:2019.3.12
(Hetero)aryl, benzylic, and alkyl zinc halides were thiolated with N‐thiophthalimides at 25 °C within 1 h in the presence of 5–10 % Cu(OAc)2⋅H2O to furnish the corresponding polyfunctionalized thioethers in good yields. This electrophilic thiolation was extended to the introduction of trifluoromethylthio (SCF3), thiocyanate (SCN), and selenophenyl (SePh) groups. The utility of this method was shown
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...