| 膦氮双齿配体/钴催化的相转移氯苄羰化合成苯乙酸 |
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| 引用本文： | 蒋景阳,龙凌,陈瑞芳,左焕培,金子林. 膦氮双齿配体/钴催化的相转移氯苄羰化合成苯乙酸[J]. 石油化工, 1998, 0(11) |
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| 作者姓名： | 蒋景阳 龙凌 陈瑞芳 左焕培 金子林 |
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| 作者单位： | 大连理工大学精细化工国家重点实验室 |
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| 摘 要： | 考察了二苯基氨基吡啶膦／Ｃｏ２（ＣＯ）８配合物对相转移催化氯苄羰化合成苯乙酸的催化活性，找出了较佳的反应工艺条件。在反应温度７０℃，ＣＯ压力０．１ＭＰａ，以苄基三甲基氯化铵为相转移剂（ＰＴＣ）时，氯苄的转化率可达９７％，苯乙酸的选择性达９４％。通过动力学研究，测得反应表观活化能为１８．６ｋＪ／ｍｏｌ
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| 关 键 词： | 氯苄羰化 相转移催化 二苯基氨基吡啶膦 八羰基二钴 苯乙酸 |
Carbonylation of Benzylchloride to Phenylacetic Acid by Phase Transfer Catalysis with Co 2(CO) 8/P N Bidentate Ligand |
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| Jiang Jingyang,Long Ling,Chen Ruifang,Zuo Huanpei and Jin Zilin. Carbonylation of Benzylchloride to Phenylacetic Acid by Phase Transfer Catalysis with Co 2(CO) 8/P N Bidentate Ligand[J]. Petrochemical Technology, 1998, 0(11) |
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| Authors: | Jiang Jingyang Long Ling Chen Ruifang Zuo Huanpei Jin Zilin |
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| Abstract: | The catalytic activity of DPAPP/Co 2(CO) 8 complex for the carbonylation of benzylchloride to phenylacetic acid was studied under phase transfer catalysis conditions.The optimum reaction conditions were established with the conversion of benzylchloride being as high as 97% and the selectivity of phenylacetic acid being 94% under the optimal reaction conditions( t =70 ℃, p CO =0 1 MPa) and with PhCH 2N(CH 3) 3Cl as phase transfer catalyst.The apparent energy of activation was found to be E a=18 6 kJ/mol. |
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| Keywords: | carbonylation of benzylchloride phase transfer catalyst diphenyl phosphino amino pyridine octacarbonyldicobalt phenylacetic acid |
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