Tandem Fragmentation of Cyclopropylcarbinyl/Oxiranylcarbinyl Radicals. On the Reversibility of Oxiranylcarbinyl/Allyloxyl Radical Formation
作者:Frederick E. Ziegler、Anders K. Petersen
DOI:10.1021/jo00089a012
日期:1994.5
The tandem radical fragmentation of four stereoisomeric epoxy thiocarbonates 7c-10c has been investigated. In each instance a cyclopropylcarbinyl radical fragments to generate an oxiranylcarbinyl radical, which, in turn, undergoes fragmentation. The Initially detected product is (Z)-allylic alcohol 23, which isomerizes to (E)-allylic alcohol 24 under acid catalysis. The reversibility of allyloxyl radical formation is considered.