Produkte der Carbodiimid-Hydroborierung mit (9H -9-BBN)2 [1] / Hydroboration Products of Carbodiimides with (9H-9-BBN)2 [1]

Abstract

The hydroboration of H11C6N=C=NC6H11(A) with (9H-9-BBN)2 (C2) gives H11C6N= C(H)N(C6H11)BC8H14 (1), which reacts with 9H-9-BBN to form the six-membered hetero­cycle mixed dimer (2). Compound 2 crystallizes in the monoclinic space group C 2/c, a = 27.776(3). b = 17.140(2), c = 12.302(2) Å, β = 113.31° (at 120 K). - On heating. 2 is transformed by intramolecular hydroboration into H2C[N(C6H11)B(C8H14)]2 (3a). - 1 reacts with Et2O-BF3 to give 9F-9-BBN (4) and (5). - The total hydroboration of H5C6N=C=NC6H5 (B) with C2 affords H2C[N(C6H5)B(C8H14)]2 (3b).