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- W2041925089 abstract "[formula: see text] Aldol reaction of tetrahydro-4H-thiopyran-4-one with racemic 1,4-dioxa-8-thiaspiro[4.5]decane-6-carboxaldehyde is easily controlled to give the 2,3-anti-3,4-syn or the 2,3-syn-3,4-syn adduct. Aldol homologations of these beta-hydroxy ketones with the same aldehyde occur with considerable mutual kinetic enantioselection (MKE) and, in each case, selectively give one of the eight possible diastereomers. Similar reactions of related beta-methoxy ketones are also very diastereoselective but proceed without significant MKE, resulting in two diastereomers. The adducts can be used for polypropionate synthesis." @default.
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- W2041925089 date "2010-06-03" @default.
- W2041925089 modified "2023-09-25" @default.
- W2041925089 title "ChemInform Abstract: Thiopyran Route to Polypropionates: Aldol Diastereoselectivity of Linear and Two-Directional Iterative Homologations." @default.
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- W2041925089 doi "https://doi.org/10.1002/chin.200034128" @default.
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