Étude comparative de la décarboxylation des acides (benzothiazolyl-2)-acétique, -3-propionique, -glyoxylique et -pyruvique
作者:Pierre Baudet、Claude Otten
DOI:10.1002/hlca.19700530715
日期:——
Benzothiazol-2-yl glyoxylic acid and α-amino-benzothiazol-2-yl acetic acid hydrochloride undergo decarboxylation at room temperature. This facile decarboxylation seems to depend on the following requirements: (a) the formation of a planar zwitterion; (b) a distance of about 2.2 Å between the charges of the zwitterion; (c) the stabilisation of the intermediate carbanion.
苯并噻唑-2-基乙醛酸和α-氨基-苯并噻唑-2-基乙酸盐酸盐在室温下进行脱羧。这种容易的脱羧似乎取决于以下要求:(a)平面两性离子的形成;(b)两性离子电荷之间的距离约为2.2Å;(c)稳定中间碳负离子。