Titanium-catalyzed cycloaddition reactions of phenyl(trimethylsilyl)acetylene to conjugated dienes and 1,3,5-cycloheptatriene. 1-Phenyl-2-(trimethylsilyl)cyclohexa-1,4-dienes and their aromatization

Article abstract of DOI:10.1016/0022-328X(92)85042-U

The catalytic system Et2AlCl/TiCl4 induces Diels-Alder addition of phenyl(trimethylsilyl)acetylene (PTMSA) to 1,3-butadiene, isoprene, 2,3-dimethyl-1,3-butadiene, 2-methyl-1,3-pentadiene, and <6+2> addition of PTMSA to 1,3,5-cycloheptatriene.The 1-phenyl-