Cyclization/Hydrogermylation of Functionalized 1,6-Dienes Catalyzed by Cationic Palladium Complexes
作者:Ross A. Widenhoefer、Anand Vadehra、Pavan K. Cheruvu
DOI:10.1021/om990546y
日期:1999.10.1
A 1:1 mixture of the palladium phenanthroline complex (phen)Pd(Me)Cl and NaBAr4 (phen = 1,10-phenanthroline; Ar = 3,5-C6H3(CF3)2) catalyzed the reaction of 4,4-disubstituted 1,6-dienes with trialkylgermanes at 80 °C in 1,2-dichloroethane (DCE) to form R3GeCH2-substituted cyclopentanes in good yield with high trans selectivity.
钯菲咯啉配合物(phen)Pd(Me)Cl和NaBAr 4的1:1混合物(phen = 1,10-菲咯啉; Ar = 3,5-C 6 H 3(CF 3)2)催化了在1,2-二氯乙烷(DCE)中,在80°C下,具有三烷基锗烷的4,4-二取代的1,6-二烯以高收率和高反式选择性形成R 3 GeCH 2取代的环戊烷。