PHOTOLYSIS OF SOME ALKYL-1-PYRAZOLINES
PHOTOLYSIS OF SOME ALKYL-1-PYRAZOLINES
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DOI：
10.1139/v68-547
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发表时间：
1968-01-01
影响因子：
1.1
通讯作者：
CRAWFORD, RJ
中科院分区：
文献类型：
--
作者：
MOORE, R;MISHRA, A;CRAWFORD, RJ
本文报道了六种甲基化吡唑啉的直接光解和光敏光解。检查的产品表明，直接光解导致激发单线态三亚甲基，而三重态产生的二苯甲酮光敏。由4和5生成的三亚甲基与三重态亚甲基与顺式和反式-2-丁烯加成生成的中间体有关。证据支持的索赔，没有中间体参与的单线态亚甲基顺-和反-2-丁烯加成。
The direct and photosensitized photolysis of six methylated-1-pyrazolines is described. Examination of the products suggests that direct photolysis leads to an excited singlet trimethylene, whereas a triplet is produced on benzophenone photosensitization. The trimethylene produced from4and5is related to the intermediates produced on addition of triplet methylenes tocis- andtrans-2-butene. Evidence is presented to support the claim that no intermediate is involved in the addition of singlet methylene tocis-andtrans-2-butene.