Isolation of Epimers in the Synthesis of Vinylcyclopropane Bearing Two Alanine Moieties and Their Radical Ring-Opening Polymerization
Sign Up to like & getrecommendations! Published in 2017 at "Macromolecules"
DOI: 10.1021/acs.macromol.6b02778
Abstract: By condensing 1,1-dicarboxy-2-vinylcyclopropane with l-alanine methyl ester, a new chiral vinylcyclopropane derivative bearing two amide moieties 1 was synthesized. The vinylcyclopropane thus prepared was separated into two epimers, namely, RSS-1 and SSS-1. Both the epimers… read more here.
Keywords: ring opening; rrop; polymerization; opening polymerization ... See more keywords
Heterochiral coupling to bilateral β-turn structured azapeptides bearing two remote chiral centers
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DOI: 10.1038/s41467-024-53744-x
Abstract: Enantioselective synthesis governed by chiral catalysts has been extensively developed, but that without any chiral auxiliaries or chiral catalysts is rare, particularly when remote stereogenic centers are involved. Here we report an enantioselectivity of heterochiral… read more here.
Keywords: enantioselective synthesis; turn; chiral catalysts; chiral centers ... See more keywords
Catalytic asymmetric synthesis of α-tertiary aminoketones from sulfoxonium ylides bearing two aryl groups.
Sign Up to like & getrecommendations! Published in 2023 at "Chemical communications"
DOI: 10.1039/d2cc06147c
Abstract: Disclosed herein is an efficient organocatalytic formal N-H insertion reaction of arylamines with α-keto sulfoxonium ylides bearing two aryl groups, delivering a broad range of α-tertiary aminoketones with good to excellent yields and enantioselectivities (up… read more here.
Keywords: tertiary aminoketones; two aryl; bearing two; aryl groups ... See more keywords