Aj. Ashe et al., Synthesis of 1,2-dihydro-1,2-azaborines and their conversion to tricarbonyl chromium and molybdenum complexes, ORGANOMETAL, 20(25), 2001, pp. 5413-5418
1,2-Dihydro-1,2-azaborines (1c, 1d, and 1e) have been prepared by the react
ion of the corresponding 2,3-dihydro-1H-1,2-azaborol-3-yllithium reagents (
1c, 1d, and 1e). The reaction of le with Py3Mo(CO)(3) and BF3. OEt2 affords
MO(CO)3 complex 5e, while the reaction of 1c, with Cr(CH3CN)(3)(CO)(3) aff
ords Cr(CO)3 complex 6c. X-ray structures of 5e and 6c show that the metals
are eta (6)-bound to the 1,2-dihydro-1,2-azaborine rings.