Total Synthesis of Diocollettines A via an Acid-Promoted Oxa-Michael-Aldol-Acetalization Cascade.
Sign Up to like & getrecommendations! Published in 2019 at "Organic letters"
DOI: 10.1021/acs.orglett.9b04074
Abstract: A diastereo- and enantioselective total synthesis of diocollettines A with an unusual oxygen-containing tricyclic ring system has been achieved in 63% overall yield from commercially available 3-phenylpropanal via four steps. The key feature of the… read more here.
Keywords: oxa michael; cascade; total synthesis; synthesis diocollettines ... See more keywords
Catalytic Enantioselective Intramolecular Oxa-Michael Reaction to α,β-Unsaturated Esters and Amides.
Sign Up to like & getrecommendations! Published in 2023 at "Journal of the American Chemical Society"
DOI: 10.1021/jacs.3c03182
Abstract: A bifunctional iminophosphorane (BIMP)-catalyzed, enantioselective intramolecular oxa-Michael reaction of alcohols to tethered, low electrophilicity Michael acceptors is described. Improved reactivity over previous reports (1 day vs 7 days), excellent yields (up to 99%), and enantiomeric… read more here.
Keywords: michael; reaction; michael reaction; oxa michael ... See more keywords
Heterogeneous enantioselective synthesis of chromans via the oxa-Michael-Michael cascade reaction synergically catalyzed by grafted chiral bases and inherent hydroxyls on mesoporous silica surface.
Sign Up to like & getrecommendations! Published in 2017 at "Chemical communications"
DOI: 10.1039/c7cc03556j
Abstract: A heterogeneous enantioselective oxa-Michael-Michael reaction for the synthesis of chromans has been developed on a heterogeneous acid-base synergic catalyst with inherent silica as acidic sites and immobilized chiral amines as basic sites. Final products were… read more here.
Keywords: oxa michael; michael michael; michael; synthesis chromans ... See more keywords
Preparation of hyperbranched polymers by oxa-Michael addition polymerization
Sign Up to like & getrecommendations! Published in 2020 at "Polymer Chemistry"
DOI: 10.1039/c9py01686d
Abstract: In this research, we developed an efficient approach to prepare hyperbranched polymers at room temperature via phosphazene-base t-BuP2 catalyzed oxa-Michael addition polymerization from commercially available trifunctional hydroxyl and diacrylate monomers. The branching structure of the… read more here.
Keywords: oxa michael; addition; michael addition; hyperbranched polymers ... See more keywords