Chiral Bifunctional Metalloporphyrin Catalysts for Kinetic Resolution of Epoxides with Carbon Dioxide

Chiral binaphthyl-strapped Zn­(II) porphyrins with triazolium halide units were synthesized as bifunctional catalysts for kinetic resolution of epoxides with CO2. Several catalysts were screened by changing the linker length and nucleophilic counteranions, and the optimized catalyst accelerated the...

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Published in:Organic letters 2019-03, Vol.21 (6), p.1853-1856
Main Authors: Maeda, Chihiro, Mitsuzane, Mayato, Ema, Tadashi
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Language:English
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container_title Organic letters
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creator Maeda, Chihiro
Mitsuzane, Mayato
Ema, Tadashi
description Chiral binaphthyl-strapped Zn­(II) porphyrins with triazolium halide units were synthesized as bifunctional catalysts for kinetic resolution of epoxides with CO2. Several catalysts were screened by changing the linker length and nucleophilic counteranions, and the optimized catalyst accelerated the enantioselective reaction at ambient temperature to produce optically active cyclic carbonates and epoxides.
doi_str_mv 10.1021/acs.orglett.9b00447
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title Chiral Bifunctional Metalloporphyrin Catalysts for Kinetic Resolution of Epoxides with Carbon Dioxide
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