Articles with "stereoselective addition" as a keyword



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Regio- and Stereoselective N-addition to an Open Bromo Vinyl Cation

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Published in 2021 at "Tetrahedron Letters"

DOI: 10.1016/j.tetlet.2021.153173

Abstract: Abstract A protocol for the synthesis of thus far inaccessible bromo vinyl triflimides is presented. Our previously reported concept of assisted vinyl cation formation was engaged to achieve both a protonation of relatively electron poor… read more here.

Keywords: cation; vinyl cation; stereoselective addition; bromo vinyl ... See more keywords

Regio- and Stereoselective Addition to gem-Difluorinated Ene-Ynamides: Access to Stereodefined Fluorinated Dienes.

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Published in 2022 at "Organic letters"

DOI: 10.1021/acs.orglett.2c01593

Abstract: The first synthesis of gem-difluorinated ene-ynamides is presented via deprotonation of trifluoromethylated N-allenamides and δ extrusion of fluorine. These highly reactive building blocks, owing to their dual functional groups, offer a unique entry to difluorinated… read more here.

Keywords: addition; gem difluorinated; ene ynamides; difluorinated ene ... See more keywords