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
GRIGG, RONALD;DEVLIN, JOHN;RAMASUBBU, ASHOK;SCOTT, RONALD M.;STEVENSON, P+, J. CHEM. SOC. PERKIN TRANS.,(1987) N 7, 1515-1520
作者:GRIGG, RONALD、DEVLIN, JOHN、RAMASUBBU, ASHOK、SCOTT, RONALD M.、STEVENSON, P+
DOI:——
日期:——
Metal-Free, Radical Addition to Alkenes<i>via</i>Desulfitative Chlorine Atom Transfer
作者:Lidong Cao、Karin Weidner、Philippe Renaud
DOI:10.1002/adsc.201100473
日期:2011.12
An efficient method for radicaladditions to unactivated alkenesvia desulfitative chlorine-atom transfer is described. The reaction is based on the use of readily available sulfonyl chlorides as starting materials and cheap radical initiators such as azobisisobutyronitrile (AIBN), di-tert-butyldiazene (DTBD), and dilauroyl peroxide (DLP). No transition metal catalyst is required and the reaction takes