A one-step synthesis of 2,3-dihydro-4H-pyran-4-ones from 3-ethoxy alpha,beta-unsaturated lactones |
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| Authors: | Winkler Jeffrey D Oh Kyungsoo |
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| Institution: | Department of Chemistry, The University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA. winkler@sas.upenn.edu |
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| Abstract: | reaction: see text] Addition of diverse nucleophiles to the unsaturated lactone 2 that results from hetero Diels-Alder reaction of Brassard's diene 1 with aldehydes leads to an efficient and general approach to the synthesis of 2,3-dihydro-4H-pyran-4-ones 3. |
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