The cleavage of a Csp3−H bond by an N/B frustratedLewispair (FLP) is reported. Upon mild heating, the ambiphilic molecule (2‐NMe2‐C6H4)2BH activates the C−H bond of a methyl group in α position of a nitrogen atom to generate an unprecedented N–B heterocycle. Upon further heating, the novel species rearranges through a hydride abstraction/1,2‐aryl shift sequence. The mechanistic details of these transformations
Albrecht, Karsten; Kaiser, Volker; Boese, Roland, Journal of the Chemical Society. Perkin Transactions 2 (2001), 2000, # 10, p. 2153 - 2157
作者:Albrecht, Karsten、Kaiser, Volker、Boese, Roland、Adams, Joerg、Kaufmann, Dieter E.
DOI:——
日期:——
LAUER, M.;WULFF, G., J. ORGANOMET. CHEM., 1983, 256, N 1, 1-9
作者:LAUER, M.、WULFF, G.
DOI:——
日期:——
Novel Extensions of the <i>tert</i>-Amino Effect: Formation of Phenanthridines
and Diarene-Fused Azocines from <i>ortho</i>-<i>ortho</i>′-Functionalized Biaryls
azocines fused to two benzene rings or one benzene and one pyridazinone ring, which are otherwise difficult to access, were prepared via two new extensions of the tert- ' amino effect. The synthetic pathway includes three steps:i) Suzuki ] reaction of an ortho-functionalized phenylboronic acid with ortho- ] disubstituted benzenes or pyridazinones; ii) the Knoevenagel condensation reaction of the biaryl