Straightforward and highly efficient catalyst-free regioselective reaction of thiol to β-nitrostyrene: a concise synthesis of vinyl sulfide and nitro sulfide
作者:Cheng-Ming Chu、Zhijay Tu、Pohsi Wu、Chieh-Chieh Wang、Ju-Tsung Liu、Chun-Wei Kuo、Yu-Hsuan Shin、Ching-Fa Yao
DOI:10.1016/j.tet.2009.02.074
日期:2009.5
Under catalyst-free reaction conditions, solvent-mediated addition of thiol 2 to β-nitrostyrene 1 proceeded with regioselective control to afford either adduct 3 or vinylsulfide 4 in good to excellent yield. Thermodynamic and autocatalytic reaction mechanisms were proposed to rationalize the products thus formed.
One-Pot Synthesis of Alkyl Styryl Sulfides Free from Transition Metal/Ligand Catalyst and Thiols
作者:Adrián A. Heredia、Alicia B. Peñéñory
DOI:10.1002/ejoc.201201163
日期:2013.2
developed. This methodology involves the in situ generation of thiolate anions by nucleophilic substitution between potassium thioacetate and alkyl halides followed by fragmentation. Further reactions of these thiolate anions with substituted (E,Z)-β-styryl halides gave the corresponding sulfides with retention of stereochemistry in good to excellent yields. This procedure does not require a metal catalyst