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- W4233057058 abstract "Abstract This reaction is an alkali halide promoted alkylative decarboxylation of active esters (e.g., β‐keto esters, β‐diesters, α‐cyano esters) in polar or dipolar aprotic solvents (e.g., DMF, DMSO, HMPA,) and is generally referred to as the Krapcho decarboxylation. A few exemplary decarbalkoxylation systems have been represented. The study finds that many β‐keto esters with α‐hydrogen proceed decarboxylation rapidly in wet DMSO and LiCl or KCN is the most effective salt to remove ethyl ester in wet DMSO. The alkali halides, such as MgCl 2 , Na 3 PO 4 ·12H 2 O and lithium acetate (LiAc) are found effective for the alkylative decarboxylation. The 1,4‐Diazabicyclo[2.2.2]octane (DABCO) has been used for the cleavage of β‐keto esters. This reaction has an importance for the mild removal of ester groups from the activated esters." @default.
- W4233057058 created "2022-05-12" @default.
- W4233057058 date "2010-09-15" @default.
- W4233057058 modified "2023-10-03" @default.
- W4233057058 title "Krapcho Decarboxylation" @default.
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- W4233057058 doi "https://doi.org/10.1002/9780470638859.conrr377" @default.
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