Efficient Synthesis
of Tetrahydro-β-carbolin-1-one and Dihydroisoquinolin-1-one
Derivatives as Versatile Intermediates
作者:Lorenzo Caggiano、Katie Judd、Mary Mahon
DOI:10.1055/s-0029-1216904
日期:——
An efficientone-pot procedure is described in which an isocyanate intermediate, generated from the corresponding carboxylic acid by a modified Curtiusrearrangement, is captured by a tethered aromatic ring in the presence of BF3˙OEt2 to generate various lactams, including tetrahydro-β-carbolin-1-one and dihydroisoquinolin-1-one derivatives. cyclizations - heterocycles - lactams - Lewis acids - rearrangements