carbonic acid <3-methyl-5-(E)-(2,6,6-trimethylcyclohex-2-en-1-ylidene)pent-1-yn-3-yl> ester (3-methylbuta-1(E),3-dien-1-yl) ester 在
P(Napht)3 、 bis(dibenzylideneacetone)-palladium
(0) 作用下,
以
四氢呋喃 为溶剂,
生成 1,5,5-Trimethyl-6-[(E)-3-methyl-pent-2-en-4-yn-(Z)-ylidene]-cyclohexene 、 (E)-3,5-Dimethyl-5-{2-[2,6,6-trimethyl-cyclohex-2-en-(Z)-ylidene]-ethyl}-hept-2-en-6-ynal 、
3,7-dimethyl-9-(2,6,6-trimethylcyclohex-2-en-1-ylidene)nona-2,5,6-trienal