0000000000636757

AUTHOR

U.w. Gerwarth

Darstellung eines neuen achtgliedrigen BNC-heteroringes

Abstract 2-Phenyl-1,3,2-diazaboracyclohexane reacts with phenylisocyanate by an insertion reaction leading to an eight-membered BNC-heterocycle.

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III. Darstellung und molekülstruktur von triazoboracyclooctanen

Abstract The aminoboration of phenylisocyanate or phenylisothiocyanate with 2-phenyl-1,3,2-diazabora-cyclohexane yields under ring expansion the eight-membered BNC-heterocycles 2,3-diphenyl-1,3,5-triaza-2-bora-cyclooctane-4-one or 2,3-diphenyl-1,3,5-triaza-2-bora-cyclooctane-4-thione, respectively. Isomeric structures, which can appear in the insertion reaction, are discussed on the basis of spectroscopic data.

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