The asymmetric synthesis of 1-alkyl-2,3,4,5-tetrahydro-benzazepines and benzo[β]-1-azabicyclo[5,3,1]decanes
摘要:
The metalation-alkylation of benzazepine formamidines gives high yields and good diastereoselectivity of 1-substituted derivatives. Removal of the chiral auxiliary leads to the title compounds in 84-96% ee and represents the first chiral benzazepines prepared via asymmetric synthesis.