| Literature DB >> 12203627 |
K Juhl1, N Gathergood, K A Jørgensen.
Abstract
The development of a direct catalytic asymmetric Mannich reaction is shown and its potential demonstrated by the synthesis of optically active lactones via 4-hydroxyglutamic acid ester derivatives. The catalytic asymmetric Mannich reaction of carbonyl compounds with α-imino esters [Eq. (1); Ts = p-toluenesulfonyl] gives good yields and diastereoselectivities, as well as excellent enantioselectivities.Entities:
Keywords: Lewis acids; Mannich reactions; amino acids; asymmetric catalysis; imines
Year: 2001 PMID: 12203627 DOI: 10.1002/1521-3773(20010817)40:16<2995::AID-ANIE2995>3.0.CO;2-M
Source DB: PubMed Journal: Angew Chem Int Ed Engl ISSN: 1433-7851 Impact factor: 15.336