Organophosphorus chemistry. Part XIII. The reaction of phosphorus trichloride with primary aromatic amines
- 1 January 1973
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Perkin Transactions 1
- p. 379-385
- https://doi.org/10.1039/p19730000379
Abstract
The reaction of an excess of phosphorus trichloride with primary aromatic amines yields aryliminobisdichlorophosphines at ambient temperatures and the corresponding 1,3-diaryl-2,4-dichloro-1,3,2,4-diazadiphosphetidines at 100–120°. Dichloro-(4-nitroanilino)phosphine. isolated from the reaction of 4-nitroaniline and phosphorus trichloride, is converted by an excess of phosphorus trichloride in the presence of pyridine into 4-nitrophenyliminobisdichlorophosphine. Phosphorus trichloride reacts with hexamethyl-N-phenyldisilazane to give 2,4-dichloro-1,3-diphenyl-1,3,2,4-diazadiphosphetidine. Phenyliminobisdichlorophosphine reacts with hexamethyl-N-phenyldisilazane to give 2,4-dichloro-1,3-diphenyl-1,3,2,4-diazadiphosphetidine and with dimethylaminotrimethylsilane to give 2,4-bisdimethylamino-1,3-diphenyl-1,3,2,4-diazadiphosphetidine. 1H N.m.r. and mass spectroscopic data for some of these compounds are discussed.Keywords
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