期刊
ULTRASONICS SONOCHEMISTRY
卷 13, 期 3, 页码 220-224出版社
ELSEVIER
DOI: 10.1016/j.ultsonch.2005.04.002
关键词
octahydroxanthene; p-dodecylbenzenesulfonic acid; aqueous media; ultrasound irradiation
An efficient and convenient approach to the synthesis of 3,3,6,6-tetramethyl-9-aryl-1,8-dioxo-octahydroxanthene derivatives using p-dodecylbenzenesulfonic acid (DBSA) as the catalyst (10 mol.%) under ultrasound irradiation is described. This method provides several advantages such as environment friendliness, high yields and simple work-up procedure. In addition, water was chosen as a green solvent. (c) 2005 Elsevier B.V. All rights reserved.
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