Organo-phosphorus compounds S 0080Intramolecular Cyclization of N-Arylphosphinimidic Isocyanates -Novel Approach to a 4a,8a-Dihydro-1,3,2λ 5 -benzodiazaphosphinin-4(3H)-one System.-Previously unknown benzodiazaphosphininones are prepared by reaction of isocyanates with aryl azides (IV). -(MARCHENKO, A. P.; KOYDAN, G. K.; SMALIY*, R. V.; CHAYKOVSKAYA, A. A.; PINCHUK, A. M.; TOLMACHEV, A. A.; SHISHKIN, O. V.; Eur.
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