1-lithio-3,4-pentadien-1-ynes derived from 10 followed by trimethyltin chloride and acetic acid furnished o-isotoluenes 13 in a single operation. The reaction proceeded through an initial formation of diene-allenes 11, which underwent facile electrocyclizations to produce 12 leading to o-isotoluenes 13.
alkenyldicyclohexylborane的治疗5与1-
锂-3,4-
戊二烯-1-炔衍生自10,随后
三甲基氯化锡和
乙酸布置ö -isotoluenes 13在单个操作中。通过初始地层二烯
丙二烯的进行反应11,它接受容易electrocyclizations以产生12导致ö -isotoluenes 13。