Sonochemical synthesis of novel pyrano[3,4-e][1,3]oxazines: A green protocol

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• 作者：Tamer S. Saleh^a ; ^b ; ^{tamsaid@yahoo.com} ; ^{tssayed@kau.edu.sa} ; Abdullah S. Al-Bogami^a ; Ahmed E.M. Mekky^a ; ^c ; Hamad Z. Alkhathlan^d
• 关键词：Ultrasound irradiation ; KF/basic alumina ; Pyrano[3 ; 4-e][1 ; 3]oxazine derivatives ; Dimethyl carbonate(DMC) ; Atom economy
• 刊名：Ultrasonics Sonochemistry
• 出版年：2017
• 出版时间：May 2017
• 年：2017
• 卷：36
• 期：Complete
• 页码：474-480
• 全文大小：967 K
• 卷排序：36

文摘

A facile sonochemical reaction utilizing KF-basic alumina as catalyst was proposed. The products are novel pyrano[3,4-e][1,3]oxazine derivatives. Our work clarify that sometimes ultrasound irradiation enable the reaction to occur. The reactivity is not only as a result of kinetic energy but also, cavitation. The proposed protocol utilizing dimethyl carbonate show high atom economy.