Phosphadisilacyclobutenes by stepwise silylene additions to phosphaalkynes
Abstract
The phosphaalkynes RC![[triple bond, length as m-dash]](https://www.rsc.org/images/entities/char_e002.gif)
P [R = 1-adamantyl (1a) or R =
2-methylcyclohexyl (1b)] react with dimesitylsilylene, presumably by [2+1]
cycloaddition followed by silylene insertion, to furnish
phosphadisilacyclobutenes; the molecular structure of the adamantyl
derivative was determined by X-ray crystallography.
P [R = 1-adamantyl (1a) or R =
2-methylcyclohexyl (1b)] react with dimesitylsilylene, presumably by [2+1]
cycloaddition followed by silylene insertion, to furnish
phosphadisilacyclobutenes; the molecular structure of the adamantyl
derivative was determined by X-ray crystallography.
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