An Efficient Synthesis of Tetrahydrobenzo[b]pyran Derivatives Using Sulfonic Acid Functionalized Silica as an Efficient Catalyst

被引：62

作者：

Ziarani, Ghodsi Mohammadi ^{[1
]}

Abbasi, Alireza ^{[2
]}

Badiei, Alireza ^{[2
]}

Aslani, Zeinab ^{[1
]}

机构：

[1] Alzahra Univ, Dept Chem, Tehran, Iran

[2] Univ Tehran, Coll Sci, Sch Chem, Tehran, Iran

来源：

E-JOURNAL OF CHEMISTRY | 2011年 / 8卷 / 01期

关键词：

Tetrahydrobenzo[b]pyran; Dimedone; Aromatic aldehyde; Malononitrile; Sulfonic acid functionalized silica; ONE-POT SYNTHESIS; RECOVERABLE INTERPHASE CATALYST; VERSATILE CATALYST; AMMONIUM BROMIDE; TETRAHYDROBENZOPYRAN; CONDENSATION;

D O I：

10.1155/2011/367613

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Tetrahydrobenzo[b]pyran derivatives were efficiently synthesized by the reaction of appropriated aromatic aldehydes, malononitrile and dimedone in the presence of SiO2-Pr-SO3H as a nanoporous and recoverable solid acid catalyst, in good to excellent yields. Single crystal x-ray analysis conclusively confirmed the structure of the 2-amino-3-cyano-7,7-dimethyl-4(4-methylphenyl)-5-oxo-4H-5,6,7,8-tetrahydro-benzopyran.

引用

页码：293 / 299

页数：7

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