Construction of Α,β-Diamino Diacid Derivatives with Adjacent Acyclic Tetrasubstituted Stereocenters
Journal of organic chemistry(2022)
摘要
A convenient strategy for the diastereoselective synthesis of α,β-diamino diacid derivatives bearing congested vicinal acyclic tetrasubstituted stereocenters via catalytic Mannich-type reactions of azlactones and 2-aminoacrylates was established. A diverse set of α,β-diamino diacid derivatives were synthesized in good to excellent yields and diastereoselectivities. Good enantioselectivity (up to 98:2 er) was achieved by employing the catalyst (DHQD)2PHAL in the subsequent asymmetric study.
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