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   Articles with "alkene isomerization" as a keyword



Kinetic Resolution of N-Allylic Pyrazoles via Photoexcited Chiral Copper Complex-Catalyzed Alkene E → Z Isomerization.

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recommendations! Published in 2024 at "Organic letters"

DOI: 10.1021/acs.orglett.4c01220

Abstract: Herein, we present an efficient and practical kinetic resolution (KR) of racemic allylic pyrazoles utilizing photoexcited chiral-copper-complex-mediated alkene E → Z isomerization. This method enables the synthesis of both enantioenriched E- and Z-allylic pyrazoles, achieving… read more here.

Keywords: allylic pyrazoles; copper complex; alkene isomerization; photoexcited chiral ... See more keywords

Unexpected Alkene Isomerization during Iterative Cross-Coupling To Form Hindered, Electron-Deficient Trienes.

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recommendations! Published in 2018 at "Organic letters"

DOI: 10.1021/acs.orglett.8b00809

Abstract: An iterative cross-coupling approach to conjugated trienes was explored as part of a planned stereoselective synthesis of bicyclic terpenes. Using a bifunctional bromoboronate building block, sequential Suzuki coupling reactions were employed to provide a conjugated… read more here.

Keywords: iterative cross; cross; alkene isomerization; unexpected alkene ... See more keywords

Alkene Isomerization through Allylmetals as a Strategic Tool in Stereoselective Synthesis

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recommendations! Published in 2020 at "ACS Catalysis"

DOI: 10.1021/acscatal.0c01174

Abstract: The positional isomerization of alkenes is a well-known process mediated by various transition metal complexes. Nevertheless, systems which isomerize alkenes with complete regio- and stereoselectiv... read more here.

Keywords: isomerization allylmetals; isomerization; alkene isomerization; allylmetals strategic ... See more keywords

Two-State Reactivity in Iron-Catalyzed Alkene Isomerization Confers σ-Base Resistance.

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recommendations! Published in 2020 at "Journal of the American Chemical Society"

DOI: 10.1021/jacs.0c07300

Abstract: A low-coordinate, high spin (S = 3/2) organometallic iron(I) complex is a catalyst for the isomerization of alkenes. A combination of experimental and computational mechanistic studies supports a mechanism in which alkene isomerization occurs by… read more here.

Keywords: state; two state; isomerization; alkene isomerization ... See more keywords