New basic ionic liquid from ethan-1,2-diyl bis (hydrogen sulfate) and DBU (1,8-diazobicyclo[5.4.0]undec-7-ene) as an efficient catalyst for one-pot synthesis of xanthene derivatives
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- 作者：Behrooz Malekia ; b.maleki@hsu.ac.ir" class="auth_mail" title="E-mail the corresponding author ; Elahe Akbarzadehb ; Saeed Babaeea
- 关键词：β-Naphthol ; Aldehydes ; Bis-2 ; 3 ; 4 ; 6 ; 7 ; 8 ; 9 ; 10-octahydropyrimido[1 ; 2-a]azepinnium-ethyl disulfate [DBU]2[EDS] ; Dimedone ; 2-Hydroxynaphtalene-1 ; 4-dione ; DBU-based ionic liquid
- 刊名：Dyes and Pigments
- 出版年：2015
- 出版时间：December 2015
- 年：2015
- 卷：123
- 期：Complete
- 页码：222-234
- 全文大小：1327 K
文摘
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A novel basic ionic liquid is proposed for some useful xanthene derivatives.
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Products would be helpful for dye applications.
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Avoiding of any metal, or acid catalysts.
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The multi component reaction gave good to excellent yields from simple precursors.
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The IL was recycled five times without significant loss of catalytic activity.