Addition reactions and redox esterifications of carbonyl compounds by N-Heterocyclic carbenes of indazole

Schmidt A, Habeck T, Snovydovych B, Eisfeld W (2007)
ORGANIC LETTERS 9(18): 3515-3518.

Journal Article | Published | English

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Abstract
Thermal decarboxylation converts 1,2-dimethylindazolium-3-carboxylate into indazol-3-ylidene, which reacts in situ with ketones to form stable 1:1 adducts. When the reaction is conducted with aromatic aldehydes in alcohols, redox esterifications to benzoates are observed. Model reactions such as redox esterifications of aromatic aldehydes with sodium alcoholates in the presence of 1,2-dimethylindazolium salt and oxidations of sodium benzylates by 1,2-dimethylindazolium salt to aldehydes lend support to a Cannizzaro-type mechanism of this reaction.
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Schmidt A, Habeck T, Snovydovych B, Eisfeld W. Addition reactions and redox esterifications of carbonyl compounds by N-Heterocyclic carbenes of indazole. ORGANIC LETTERS. 2007;9(18):3515-3518.
Schmidt, A., Habeck, T., Snovydovych, B., & Eisfeld, W. (2007). Addition reactions and redox esterifications of carbonyl compounds by N-Heterocyclic carbenes of indazole. ORGANIC LETTERS, 9(18), 3515-3518.
Schmidt, A., Habeck, T., Snovydovych, B., and Eisfeld, W. (2007). Addition reactions and redox esterifications of carbonyl compounds by N-Heterocyclic carbenes of indazole. ORGANIC LETTERS 9, 3515-3518.
Schmidt, A., et al., 2007. Addition reactions and redox esterifications of carbonyl compounds by N-Heterocyclic carbenes of indazole. ORGANIC LETTERS, 9(18), p 3515-3518.
A. Schmidt, et al., “Addition reactions and redox esterifications of carbonyl compounds by N-Heterocyclic carbenes of indazole”, ORGANIC LETTERS, vol. 9, 2007, pp. 3515-3518.
Schmidt, A., Habeck, T., Snovydovych, B., Eisfeld, W.: Addition reactions and redox esterifications of carbonyl compounds by N-Heterocyclic carbenes of indazole. ORGANIC LETTERS. 9, 3515-3518 (2007).
Schmidt, Andreas, Habeck, Tobias, Snovydovych, Bohdan, and Eisfeld, Wolfgang. “Addition reactions and redox esterifications of carbonyl compounds by N-Heterocyclic carbenes of indazole”. ORGANIC LETTERS 9.18 (2007): 3515-3518.
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