Ruthenium(<scp>II</scp>)- and rhenium(<scp>III</scp>)-catalysed addition of tetrahalogenomethanes to alkenes and 1,ω-dienes. Stereoselective formation of cis-1,2-disubstituted cyclopentanes from 1,6-dienes
作者:Ronald Grigg、John Devlin、Ashok Ramasubbu、Ronald M. Scott、Paul Stevenson
DOI:10.1039/p19870001515
日期:——
Acetonitrile(trichloro)bis(triphenylphosphine)rhenium(III) is found to act as an initiator for the addition of carbon tetrachloride and bromotrichloromethane to terminal alkenes and dienes. Moderate to good yields of mono- and bis-adducts are obtained. 1,6-Dienes undergo a stereoselective addition-cyclization process with both the ReIII catalyst and with dichlorotris(triphenylphosphine)ruthenium (II) to give mixtures