| 低价钛盐还原反应的研究——Ⅱ.低价钛盐与芳基三卤甲烷的反应 |
| STUDY ON REDUCTIVE REACTION OF LOWVALENTCTITANIUM SALTS Ⅱ. REACTION OF TRIHALOMETHYL ARENES WITH LOW-VALENT TITANIUM SALTS |
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| 摘要: 用LiAlH4或Zn、Mg等与四氯化钛作用得到的低价钛盐能使芳基三卤甲烷还原偶联为1,1,2,2-四卤-1,2-二芳基乙烷、1,2-二卤-1,2-二芳基乙烯或二芳基乙炔,反应可能生成ArCX2·自由基,然后偶联为二芳基四卤代乙烷,后者能脱去卤素生成二芳基二卤代乙烯.TiCl3和Ti°与三氯甲苯作用能得到相似的后果. |
| 关键词: 低价钛盐 还原偶联 三氯甲苯 三溴甲苯 二苯乙炔 二苯四氯乙烷 |
| 基金项目: 中国科学院科学基金资助 |
| Abstract: Low-valent titanium salts, prepared by reducing titanium tetrachlo-ride with lithium aluminium hydride, zine or magnesium, react with tri-halomethyl arenes giving l,l,2,2-tetrahalo-l,2-diarylethane, 1,2-dihalo-1,2-diarylethene or diarylethyne. The reaction presumably proceeds through dihalomethyl arene radicals, which are coupled to diaryltetra-haloethane, the latter can be dehalogenated to arylhaloethene. Titanium trichloride and zero-valent titanium will react with trichlomethyl arenes to give similar result. |
| Keywords: low-valent titanium salt reductive compling benzotrichloride benzotribromide diphcnylacetylene diphenyl-tetrachloroethane |
| 投稿时间：1986-09-06 |
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| 高济宇,朝宏纹,陈伟兴,步修仁,沙坚.低价钛盐还原反应的研究——Ⅱ.低价钛盐与芳基三卤甲烷的反应[J].无机化学学报,1987,3(1):83-87. |
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