178804-64-3Relevant academic research and scientific papers
Synthesis of 5-methylene-1,3-cyclohexadienes (o-isotoluenes) via electrocyclization of (4Z)-1,2,4,6-heptatetraenes
Wang, Kung K.,Zhang, Quan,Liao, Junkai
, p. 4087 - 4090 (1996)
Treatment of alkenyldicyclohexylborane 5 with 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.
