ChemInform Abstract: Knoevenagel Reactions of Aldehydes with Carboxy Compounds. Part 1. Reactions of p‐Nitrobenzaldehyde with Active Methine Compounds.
Makoto Tanaka, Osamu Oota, Hideo Hiramatsu, Kazuyoshi Fujiwara
Abstract
Makoto Tanaka, Osamu Oota, Hideo Hiramatsu, Kazuyoshi Fujiwara
Abstract
Abstract The reaction of aldehyde (I) with acids (II) in the presence of Py (or another tert. amine) proceeds via a reversible formation of hydroxy intermediate (III) (isolable) which decarboxylates (rate determining step) to give compound (IV) (Hann and Lapworth mechanism).
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Abstract The reaction of aldehyde (I) with acids (II) in the presence of Py (or another tert. amine) proceeds via a reversible formation of hydroxy intermediate (III) (isolable) which decarboxylates (rate determining step) to give compound (IV) (Hann and Lapworth mechanism).
Key concepts: Chemistry, Knoevenagel condensation, Aldehyde, Amine gas treating, Organic chemistry, Reaction mechanism, Medicinal chemistry, Catalysis