MESOPOROUS ALUMINOSILICATE MCM-41 AS A CONVENIENT ACID CATALYST FOR FRIEDEL-CRAFTS ALKYLATION OF A BULKY AROMATIC COMPOUND WITH CINNAMYL ALCOHOL

被引：150
|
作者：
ARMENGOL, E [1 ]
CANO, ML [1 ]
CORMA, A [1 ]
GARCIA, H [1 ]
NAVARRO, MT [1 ]
机构：
[1] UNIV POLITECN VALENCIA,CSIC,INST TECNOL QUIM,E-46071 VALENCIA,SPAIN
来源：
JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS | 1995年 / 05期
关键词：
D O I：
10.1039/c39950000519
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Owing to its large molecular size, alkylation of 2,4-di-tert-butylphenol with cinnamyl alcohol does not take place using HY zeolite (pore opening 7.4 Angstrom) as catalyst even after controlled steaming treatment to increase its mesoporosity; by contrast, novel mesoporous aluminosilicate MCM-41 catalyses this reaction giving rise to 6,8-di-tert-butyl-2-phenyl-2,3-dihydro[4H]benzopyran (arising from intramolecular cyclization of the primary cinnamylphenol) together with 4-tert-butylphenol and small amounts of 6-tert-butyl-2-phenyl-2,3-dihydro[4H]benzopyran.
引用
收藏
页码：519 / 520
页数：2
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