[RzC= C= C:]+ X-to react with alcohols to form acetylenic ethers,'with amines to form acetylenic aniines12 with olefins to form vinylidenecyclopropanes, 3 with certain acetylide ions to form hexapentaenes13 and with bromide ion to form acetylenic bromide (and, possibly, allenic bromide). This paper describes our work on generation of vinylidene carbenes from haloallenes by a-elimination. a-Elimination of Ha1oallenes.-The addition of ...
![[2-(2-methylprop-1-enylidene)cyclopropyl]benzene Structure](https://image.chemsrc.com/caspic/140/4544-23-4.png)