SYNTHESIS OF POLYCYCLIC MOLECULES VIA CASCADE RADICAL CARBOCYCLIZATIONS OF DIENYNES - THE FIRST SNPH(3) RADICAL-MEDIATED [2-FORMAL CYCLOADDITION OF DODECA-1,6-DIEN-11-YNES(2+2])
J. Marcocontelles, SYNTHESIS OF POLYCYCLIC MOLECULES VIA CASCADE RADICAL CARBOCYCLIZATIONS OF DIENYNES - THE FIRST SNPH(3) RADICAL-MEDIATED [2-FORMAL CYCLOADDITION OF DODECA-1,6-DIEN-11-YNES(2+2]), Chemical communications, (23), 1996, pp. 2629-2630
The dodeca-1,6-dien-11-ynes 1 and 5 give the polycyclic molecules 4 an
d 7, respectively, in the first known [2 + 2 + 2] cycloaddition reacti
on promoted by triphenyltin hydride, in a cascade free radical process
.