Enantioselective synthesis of functionalized α-amino acids via a chiral guanidine catalyzed Michael addition reaction
摘要:
Several chiral guanidines were evaluated as catalysts for the Michael reaction of glycine derivatives 7 with acrylic esters 8. The best result (30.4% ee) was obtained when 7b was reacted with 8b under the catalysis of guanidine 1 in THF. (C) 1999 Elsevier Science Ltd. All rights reserved.
Enantioselective synthesis of functionalized α-amino acids via a chiral guanidine catalyzed Michael addition reaction
摘要:
Several chiral guanidines were evaluated as catalysts for the Michael reaction of glycine derivatives 7 with acrylic esters 8. The best result (30.4% ee) was obtained when 7b was reacted with 8b under the catalysis of guanidine 1 in THF. (C) 1999 Elsevier Science Ltd. All rights reserved.