Copper(II) porphyrin-catalyzed coupling of alkyl tosylates and alkyl Grignard reagents afforded substituted alkanes. The role of the copper(II) porphyrin complex was examined using EPR and in-situ ...
铜 (II) 卟啉催化的甲苯磺酸烷基酯和烷基格氏试剂的偶联得到取代的烷烃。使用 EPR 和原位...
Metal-promoted cyclization. 28. Regioselective and diastereoselective alkyl-alkene and alkene-alkene coupling promoted by zirconocene and hafnocene
作者:Douglas R. Swanson、Christophe J. Rousset、Eiichi Negishi、Tamotsu Takahashi、Takashi Seki、Masahiro Saburi、Yasuzo Uchida
DOI:10.1021/jo00276a006
日期:1989.7
Silver-catalyzed cross-coupling reactions of alkyl bromides with alkyl or aryl Grignard reagents
Treatment of secondary or tertiary alkyl bromides with alkyl Grignardreagents in the presence of catalytic amounts of silver bromide and potassium fluoride in CH2Cl2 afforded the corresponding cross-coupling products in reasonable yields. Moreover, silver showed catalytic activity for the cross-coupling reactions of alkyl bromides with aryl Grignardreagents.