Synthesis of Saturated 1,4-Benzodiazepines via Pd-Catalyzed Carboamination Reactions.
作者:Joshua D. Neukom、Alvin S. Aquino、John P. Wolfe
DOI:10.1021/ol200429a
日期:2011.5.6
A new synthesis of 1,4-benzodiazepines and 1,4-benzodiazepin-5-ones is reported. The Pd-catalyzed coupling of N-allyl-2-aminobenzylamine derivatives with aryl bromides affords the heterocyclic products in good yield, and substrates bearing allylic methyl groups are transformed to cis-2,3-disubstituted products with >20:1 dr.