The photochemistry of 3,4,5-trideuteriopyridine

The photochemistry of 3,4,5-trideuteriopyridine
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DOI:
10.1016/j.tetlet.2003.09.041
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发表时间:
2003-10-27
影响因子:
1.8
通讯作者:
Laohhasurayotin, S
Laohhasurayotin, S
中科院分区:
化学4区
文献类型:
--
作者:
Pavlik, JW;Laohhasurayotin, S

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3,4,5-三氢吡啶在气相中以254 nm的波长照射,生成了2,3,4-三氢吡啶和2,3,6-三氢吡啶的混合物。这些产物的形成符合平衡氮杂富烯中间体的光致异构化机理。这是吡啶蒸气发生光异构化导致吡啶环原子换位的第一个直接证据。(C)2003爱思唯尔有限公司。保留所有权利。
Irradiation of 3,4,5-trideuteriopyridine at 254 nm in the vapor phase results in the formation of a mixture of 2,3,4-trideuteriopyridine and 2,3,6-trideuteriopyridine. The formation of these products is consistent with a photoisomerization mechanism involving equilibrating azaprefulvene intermediates. This is the first direct evidence that pyridine vapor undergoes photoisomerization resulting in transposition of the pyridine ring atoms. (C) 2003 Elsevier Ltd. All rights reserved.