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Paper | Special issue | Vol 52, No. 2, 2000, pp.667-679
Published online, 1st January, 1970
DOI: 10.3987/COM-99-S67
Synthesis and Properties of New Fused Bicyclic Compounds Containing P-B-S Linkages

Eiji Hirakawa, Nobuhiro Takeda, and Tsuneo Imamoto*

*Department of Chemistry, Faculty of Science, Chiba University, Inage, Chiba 263-8522, Japan


New bicyclic cimpounds, (P-B)-12-phenyl-12H-dibenzo[d,g][1,3,6,2]dithiaphosphaborocine (3a) and (P-B)-12-cyclohexyl-12H-dibenzo[d,g][1,3,6,2]dithiaphosphaborocine (3b), were synthesized by the reaction of phenyl- and cyclohexylbis(2-mercaptophenyl)phosphine (5a and 5b) with BH3-THF. The structure of 3a and 3b were definitively determined by X-Ray crystallographic analysis. The reaction of tris(2-mercaptophenyl)phosphine (5c) with BH3-THF gave a bicyclic compound, (P-B)-12-{2-[(4-hydroxybutyl)thio]phenyl}-12H-dibenzo[d,g][1,3,6,2]dithiaphosphaborocine (8).