Sodium iodide-mediated synthesis of vinyl sulfides and vinyl sulfones with solvent-controlled chemical selectivity
作者:Congrong Liu、Jin Xu、Gongde Wu
DOI:10.1039/d1ra07086j
日期:——
Vinyl sulfides and vinyl sulfones are ubiquitous structures in organic chemistry because of their presence in natural and biologically active compounds and are very frequently encountered structural motifs in organic synthesis. Herein we report an efficient synthesis of vinyl sulfides and vinyl sulfones via transition metal-free sodium iodide-mediated sulfenylation of alcohols and sulfinic acids with
Silver-promoted synthesis of vinyl sulfones from vinyl bromides and sulfonyl hydrazides in water
作者:Ge Zhang、Jian-Guo Fu、Qian Zhao、Gui-Shan Zhang、Meng-Yao Li、Chen-Guo Feng、Guo-Qiang Lin
DOI:10.1039/d0cc00784f
日期:——
The synthesis of vinylsulfones via silver-promoted cross-coupling of vinyl bromides with sulfonyl hydrazides was realized. Water was used as the sole solvent. Multisubstituted vinylsulfones were easily prepared with excellent alkyl group tolerance. A mechanism involving nucleophilic attack of a sulfinate anion was proposed.
sulfinate salt‐mediatedradical relay for the completion of C(sp3)−H bond indenylation of cyclic ethers with readily available 2‐alkynylbenzonitriles by combining silver/tert‐butyl peroxide (TBHP) was established, providing a wide range of 3‐alkylated 1‐indenones with generally good yields. Interestingly, the current reaction system can tolerate an S‐centered radical and a C‐centered radical in one pot
A selective three-component 1,2-sulfonyl etherification of aryl 1,3-dienes enabled by copper catalysis to afford biologically interesting alkenyl 1,2-sulfone ether derivatives through C–S and C–O bond formation is described. The protocol proceeds with the sulfonyl chloride and alcohols under simple, mild, and base-free conditions, providing a straightforward route to sulfonylated allyl ether compounds