KINETICS AND MECHANISM FOR OXIME FORMATION FROM PYRIDINE-2-CARBOXALDEHYDE, PYRIDINE-3-CARBOXALDEHYDE, AND PYRIDINE-4-CARBOXALDEHYDE

被引：10

作者：

MALPICA, A

CALZADILLA, M

BAUMRUCKER, J

JIMENEZ, J

LOPEZ, L

ESCOBAR, G

MONTES, C

机构：

[1] Escuela de Química, Facultad de Ciencias, Universidad Central Caracas

来源：

JOURNAL OF ORGANIC CHEMISTRY | 1994年 / 59卷 / 12期

关键词：

D O I：

10.1021/jo00091a031

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Grime formation from pyridine-2-, -3-, and -4-carboxaldehydes occurs with rate-limiting carbinolamine dehydration under both acidic and neutral conditions. Carbinolamine dehydration of pyridine-2-carboxaldehyde occurs via a transition state bearing a single positive charge, unlike the corresponding reaction for formyl-1-methylpyridinium ion and the reaction under acidic conditions for pyridine-3- and -4-carboxaldehydes.

引用

页码：3398 / 3401

页数：4

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