Ammonium Ylide Mediated Cyclization Reactions
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DOI: 10.1002/ajoc.201800091
Abstract: The use of readily accessible ammonium ylides for (asymmetric) transformations, especially cyclization reactions, has received considerable attention over the past two decades. A variety of highly enantioselective protocols to facilitate annulation reactions have recently been… read more here.
Keywords: ammonium ylide; cyclization reactions; ylide mediated; mediated cyclization ... See more keywords
(CH3)2CuLi/Cu(OTf)2 Mediated N- or O-Cyclization of Urea-Tethered Cyclobuta[ b]indolines.
Sign Up to like & getrecommendations! Published in 2019 at "Organic letters"
DOI: 10.1021/acs.orglett.8b03565
Abstract: A (CH3)2CuLi/Cu(OTf)2 mediated N- or O-cyclization of urea-tethered cyclobuta[ b]indolines has been reported in this paper, giving a new synthetic protocol for the construction of pyrimido[1,6- a]indolone and cyclic imidate derivatives in moderate to good… read more here.
Keywords: 2culi otf; ch3 2culi; otf mediated; mediated cyclization ... See more keywords
Density Functional Theory Guide for an Allyl Monomer Polymerization Mechanism: Photoinduced Radical-Mediated [3 + 2] Cyclization
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DOI: 10.1021/acsomega.1c00165
Abstract: Polymerization of allyl ether monomers has previously been considered a free-radical addition polymerization mechanism, but it is difficult to achieve because of the high electron density of their double bond. To interpret the mechanism of… read more here.
Keywords: allyl ether; mechanism; mediated cyclization; radical mediated ... See more keywords
Recent advances in metal catalyzed or mediated cyclization/functionalization of alkynes to construct isoxazoles
Sign Up to like & getrecommendations! Published in 2020 at "Organic chemistry frontiers"
DOI: 10.1039/d0qo00609b
Abstract: Isoxazoles and their derivatives represent privileged heteroaromatic motifs, which exhibit remarkable biological and pharmaceutical activities. Notably, metal catalyzed or mediated cyclization/functionalization of alkynes such as alkynone oxime ethers, acetylinic oximes, propargylic amino ethers, alkynyl nitrile… read more here.
Keywords: catalyzed mediated; mediated cyclization; cyclization functionalization; functionalization alkynes ... See more keywords
Phosphine-Mediated [3+2] Cyclization for the Synthesis of Coumarin-Based CF 3 -Containing Furanones
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DOI: 10.1055/s-0042-1751434
Abstract: A tertiary phosphine-mediated [3+2] cyclization reaction of ynones with fluorinated coumarin derivatives has been developed to give a series of coumarin-based CF3-containing furanones in moderate to good yields under mild reaction conditions. Preliminary investigation into… read more here.
Keywords: coumarin based; phosphine mediated; containing furanones; mediated cyclization ... See more keywords