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Reductive Cyclizations of Hydroxysulfinyl Ketones: Enantioselective Access to Tetrahydropyran and Tetrahydrofuran Derivatives
The stereocontrolled formation of cis-2,5-disubstituted tetrahydrofurans and cis-2,6-disubstituted tetrahydropyrans is achieved from enantiopure ketosulfinyl esters by reduction, Weinreb's amide, and ketone formation, followed by the reductive cyclization (Et3SiH/TMSOTf) of the resulting hydrox...
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Published in: | Journal of organic chemistry 2003-10, Vol.68 (20), p.7779-7787 |
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container_end_page | 7787 |
container_issue | 20 |
container_start_page | 7779 |
container_title | Journal of organic chemistry |
container_volume | 68 |
creator | Carreño, M. Carmen Des Mazery, Renaud Urbano, Antonio Colobert, Françoise Solladié, Guy |
description | The stereocontrolled formation of cis-2,5-disubstituted tetrahydrofurans and cis-2,6-disubstituted tetrahydropyrans is achieved from enantiopure ketosulfinyl esters by reduction, Weinreb's amide, and ketone formation, followed by the reductive cyclization (Et3SiH/TMSOTf) of the resulting hydroxysulfinyl ketones. The sulfoxide-bearing heterocycles were transformed into two natural products, (−)-centrolobine (1) and both enantiomers of cis-(6-methyltetrahydropyran-2-yl)acetic acid (2). |
doi_str_mv | 10.1021/jo034817x |
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ispartof | Journal of organic chemistry, 2003-10, Vol.68 (20), p.7779-7787 |
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language | eng |
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source | American Chemical Society:Jisc Collections:American Chemical Society Read & Publish Agreement 2022-2024 (Reading list) |
subjects | Chemistry Exact sciences and technology Heterocyclic compounds Heterocyclic compounds with o, s, se, te hetero atom and condensed derivatives Organic chemistry Preparations and properties |
title | Reductive Cyclizations of Hydroxysulfinyl Ketones: Enantioselective Access to Tetrahydropyran and Tetrahydrofuran Derivatives |
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