A mild hydrodelialogenation reaction of fluoroalkyl halides (RfCF2X, X = Br, 1) has been developed under weakly basic conditions, giving the corresponding hydrogenolysis products with moderate to high yields. (C) 2009 Elsevier B.V. All rights reserved.
Studies on fluoroalkylation and fluoroalkoxylation. Regioselective synthesis of fluoroalkylated imidazoles
作者:Qing-Yun Chen、Zai-Ming Qiu
DOI:10.1039/c39870001240
日期:——
High yields of 4-fluoroalkylimidazoles are obtained regioselectively by the reactions of an imidazole anion and fluoroalkyl iodides or bromides under mild conditions; an SRN1 mechanism is proposed.
In the presence of sodium dithionite, perfluoroalkyl bromides reacted with olefins readily in aqueous iso-propanol solution under mild conditions, giving the corresponding addition–sulfination products, RFCH2CH(R)SO2Na, in good yields. A radical mechanism was proposed for this reaction.
在连二亚硫酸钠存在下,全氟烷基溴化物在温和的条件下在异丙醇水溶液中容易与烯烃反应,从而以高收率得到相应的加成硫化产物R F CH 2 CH(R)SO 2 Na。提出了用于该反应的根本机理。
HU, CHANG-MING;QING, FENG-LING;HUANG, WEI-YUAN, J. ORG. CHEM., 56,(1991) N, C. 2801-2804