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organic compounds
The structure of the fourth member of a family of structurally related 2,3,1-benzodiheteroborines has been solved by crystallographic means, providing data for proper direct comparison with the others. The title compound 1,2-dihydro-1-hydroxy-2-methyl-2,3,1-benzodiazaborine (C8H9BN2O) is obtained via condensation of 2-formylbenzeneboronic acid and methylhydrazine and is similar in most respects to its 2-unsubstituted parent, in internal geometry and intramolecular association topography, but has some subtle oxazaborine-like characteristics.