Mécanisme de la décomposition thermique du N,N′-diacétyltétrahydrodipyridyle-4,4′
作者:P. Atlani、J.F. Biellmann、R. Briere、H. Lemaire、A. Rassat
DOI:10.1016/0040-4020(72)80119-4
日期:1972.1
A free radical mechanism for the thermolysis of N,N′-diacetyl tetrahydrodipyridyl (1) to pyridine, 4-acetyl pyridine (2) and to (4-pyridine)-l ethanol acetate (3) is proposed. Both chemical evidence (incorporation of pyridine and of 4-acetyl pyridine in the acetate (3) and physical evidence (observation of the free pyridinyl radical araising from homolytic cleavage of dimer 1, spin trapping of the
提出了将N,N'-二乙酰基四氢二吡啶基(1)热分解为吡啶,4-乙酰基吡啶(2)和(4-吡啶)-1乙醇乙酸酯(3)的自由基机理。化学证据(吡啶和4-乙酰基吡啶在乙酸盐中的掺入(3))和物理证据(观察由二聚体1的均相裂解,乙酰基的自旋俘获和化学诱导的动态核极化引起的游离吡啶基自由基)的观察。吡啶基),同意该方案,乙酰基攻击氮基上的吡啶。