A green synthesis of unsymmetrical 9-arylxanthenes in a one-pot cascade benzylation/annulation/dehydration strategy

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A green synthesis of unsymmetrical 9-arylxanthenes in a one-pot cascade benzylation/annulation/dehydration strategy

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作者：Srinivasarao Yaragorla^a ; ^{srinivasarao@curaj.ac.in" class="auth_mail" title="E-mail the corresponding author} ; Pyare L. Saini^a ; P. Vijaya Babu^a ; Abdulrahman I. Almansour^b ; Natarajan Arumugam^b
关键词：Unsymmetrical xanthenes ; Microwave reaction ; Green synthesis ; Tandem process ; Heterocyclic compounds ; Calcium catalysis
刊名：Tetrahedron Letters
出版年：2016
出版时间：1 June 2016
年：2016
卷：57
期：22
页码：2351-2355
全文大小：3587 K

文摘

•: A unique catalytic system for the synthesis of three classes of benzopyrans.
•: Unsymmetrical 9-aryldibenzoxanthenes, tetrahydrobenzoxanthenes & 4-aryl-chromenes.
•: Endures the important green synthetic protocols.
•: “On-Water synthesis”, microwave reaction; broad substrate scope; high yields.
•: Solvent-free reaction; step economy and atom economy.

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