Ba. Arbuzov et al., REACTION OF 1,2-BORYLPHOSPHINOETHENE WITH THIOCYANATES - MOLECULAR AND CRYSTAL-STRUCTURE OF LTHIO-1,5,2-AZAPHOSPHONIABORATACYCLOHEXA-3,6-DIENE, Bulletin of the Russian Academy of Sciences, Division of Chemical Sciences, 41(7), 1992, pp. 1266-1271
The reaction of 1,2-borylphosphinoethenes with alkylthiocyanates leads
to formation of substances having the structure of thio-1,5,2-azaphos
phoniaboratacyclohexa-3,6-dienes in the crystal state. The structure o
f the compounds has been proven by x-ray diffraction analysis of thio-
1,5,2-azaphosphoniaboratacyclohexa-3,6-diene. The heterocyclic moiety
of the molecule is planar within 0.010(2) angstrom. The methylthio gro
up lies practically in the plane of the heterocycle.