Aryldiazonium Salts and DABSO: A Versatile Combination for Three‐Component Sulfonylative Cross‐Coupling Reactions
作者:Pritha Das、Subhodeep Das、Ranjan Jana
DOI:10.1002/asia.202200085
日期:2022.6
A catalyzed synthesis of diarylsulfones with arylboronic acids and catalyst-free synthesis of arylvinyl and alkylvinyl sulfonesfromvinyl bronic acids or halides is reported.
报道了用芳基硼酸催化合成二芳基砜和由乙烯基溴酸或卤化物无催化剂合成芳基乙烯基和烷基乙烯基砜。
Isomerization-Free Sulfonylation and Its Application in the Synthesis of PHA-565272A
作者:Thomas J. Fleck、Jiong Jack Chen、Cuong V. Lu、Kari J. Hanson
DOI:10.1021/op050208a
日期:2006.3.1
FeCl3 catalyzed an isomerization-free Friedel-Crafts sulfonylation between 1-naphthalenesulfonyl chloride and halobenzenes. The coupled halide was then displaced using 35% hydrazine in DMSO to provide the Fischer indole precursor. Pure 5-chloro-2-pentanone was the key for a successful Grandberg modification of Fischer indole synthesis that effectively constructed both the indole core and side chain of the target molecule. The development of these methods enabled a rapid preparation of kilogram quantities of PHA-565272A.
Visible-light-driven electron donor–acceptor complex induced sulfonylation of diazonium salts with sulfinates
作者:Xin Liang、Yufei Li、Qing Xia、Lan Cheng、Jianbo Guo、Pei Zhang、Weihua Zhang、Qingmin Wang
DOI:10.1039/d1gc03239a
日期:——
work reports an efficient sulfonylation reaction enabled by a visible-light-induced radical coupling reaction between phenyl/heterocyclic diazoniumsalts and sulfinates. Mechanistic experiments disclosed the formation of a versatile electron donor–acceptor (EDA) complex. This transformation is characterized by an easy operational procedure under mild conditions which avoids transition metals, ligands,