An efficient synthesis of 1,8-dioxo-octahydroxanthenes using heterogeneous catalysts

被引:156
作者
Das, Biswanath [1 ]
Thirupathi, Ponnaboina [1 ]
Reddy, K. Ravinder [1 ]
Ravikanth, B. [1 ]
Nagarapu, Lingaiah [1 ]
机构
[1] Indian Inst Chem Technol, Organ Chem Div 1, NPL, IICT, Hyderabad 500007, Andhra Pradesh, India
关键词
1.8-dioxo-octahydroxanthene; 5,5-dimethyl-1,3-cyclohexanedione; silica chloride; NaHSO4 center dot SiO2; heterogeneous catalyst;
D O I
10.1016/j.catcom.2006.02.023
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
1,8-Dioxo-octahydroxanthenes have efficiently been synthesized from 5,5-dimethyl-1,3-cyclohexanedione and aromatic aldehydes using silica supported sodium hydrogen sulfate (NaHSO4 center dot SiO2) or silica chloride as a heterogeneous catalyst. The experimental procedure is very simple and the products are formed in high yields. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码:535 / 538
页数:4
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