Chiral 1,3-diamines from a lithiated isocyanide and chiral aziridines
摘要:
Reaction of lithiated 4-methoxybenzylisocyanide with homochiral amino acid derived N-tosyl- and N-diphenylphosphinoylaziridines proceeds diastereoselectively to provide N-protected 3-isocyanoamines. Separation of the diastereomers of these adducts or the corresponding formamides, and subsequent transformations, lead to 1,3-diamines and their monoprotected and differentially bisprotected derivatives. (C) 1999 Elsevier Science Ltd. All rights reserved.
Chiral 1,3-diamines from a lithiated isocyanide and chiral aziridines
摘要:
Reaction of lithiated 4-methoxybenzylisocyanide with homochiral amino acid derived N-tosyl- and N-diphenylphosphinoylaziridines proceeds diastereoselectively to provide N-protected 3-isocyanoamines. Separation of the diastereomers of these adducts or the corresponding formamides, and subsequent transformations, lead to 1,3-diamines and their monoprotected and differentially bisprotected derivatives. (C) 1999 Elsevier Science Ltd. All rights reserved.