Synthesis of olefins via a Wittig reaction mediated by triphenylarsine.
Sign Up to like & getrecommendations! Published in 2017 at "Tetrahedron letters"
DOI: 10.1016/j.tetlet.2017.02.051
Abstract: An arsine-mediated Wittig reaction for the synthesis of olefins is described. After heating triphenylarsine in the presence of an activated alkyl bromide for 30 minutes, the resulting arsonium salt condensed with aldehydes in as little… read more here.
Keywords: olefins via; via wittig; synthesis olefins; wittig reaction ... See more keywords
Construction of indeno[1,2-b]pyrroles via chemoselective N-acylation/cyclization/Wittig reaction sequence.
Sign Up to like & getrecommendations! Published in 2021 at "Chemical communications"
DOI: 10.1039/d0cc08184a
Abstract: An efficient protocol for the chemoselective construction of the indeno[1,2-b]pyrroles and rearranged indeno[1,2-b]pyrrole derivatives is reported via an N-acylation/cyclization/Wittig reaction. Extensive mechanistic investigations revealed that the initially formed crucial spiro-indene-1,2'-[1,3,4]oxadiazol intermediate further reacts with phosphine… read more here.
Keywords: indeno pyrroles; cyclization wittig; construction indeno; wittig reaction ... See more keywords
Transition-Metal-Free Synthesis of Trifluoromethylated Furans via a Bu3P-Mediated Tandem Acylation–Wittig Reaction
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DOI: 10.1055/s-0040-1707263
Abstract: A highly efficient nucleophilic addition–O-acylation–intramolecular Wittig reaction of β-trifluoromethyl α,β-enones is disclosed. This strategy features mild reaction conditions and provides a practical transition-metal-free method to a set of biologically significant trifluoromethylated furans in high yields… read more here.
Keywords: transition metal; acylation; wittig reaction; metal free ... See more keywords
Liquid-assisted grinding and ion pairing regulates percentage conversion and diastereoselectivity of the Wittig reaction under mechanochemical conditions
Sign Up to like & getrecommendations! Published in 2018 at "Beilstein Journal of Organic Chemistry"
DOI: 10.3762/bjoc.14.57
Abstract: Mechanochemistry is maturing as a discipline and continuing to grow, so it is important to continue understanding the rules governing the system. In a mechanochemical reaction, the reactants are added into a vessel along with… read more here.
Keywords: assisted grinding; percentage conversion; wittig reaction; reaction ... See more keywords