Production of cyclic five-membered ring unsaturated phosphine di

Details Production of cyclic five-membered ring unsaturated phosphine di Production of cyclic five-membered ring unsaturated phosphine di

1977-02-07

1978-03-21

Sneed, Helen M. S.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260329P, 2606065P, C07F 934, C07F 953

Patent

active

040803775

ABSTRACT:
In the production of isomeric five-membered ring cyclic unsaturated phosphine dichlorides by reacting an organophosphorus dichloride with a diene, the improvement which comprises carrying out the reaction in a carboxylic acid chloride. The product, without isolation, can be directly used in reaction with the carboxylic acid anhydride corresponding to the acid chloride to produce the phosphine oxide, the reaction producing additional acid chloride from the anhydride.

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Hasserodt et al., Tetrahedron, V19, pp. 1563, 1568 and 1573 (1963).

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