无溶剂条件下4-羟基香豆素和氨基旋酸酯合成吡喃[3,2-c]铬-2,5-二酮

IF 2.7 3区化学 Q1 CHEMISTRY, ORGANIC

Organic & Biomolecular Chemistry Pub Date : 2024-12-19 DOI:10.1039/D4OB01800A

Shahnaz Begum, Sravani Kashameni, Balasubramanian Sridhar, Krishnaiah Atmakur and China Raju Bhimapaka

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引用次数: 0

摘要

建立了在无溶剂条件下，4-羟基香豆素与3-氧-3-苯基丙酸乙酯在铵盐或氨基旋酸盐存在下反应合成吡喃[3,2-c]铬-2,5-二酮的新方法。标题化合物是通过新的C-C和C-O键在分子内环化形成的。通过单晶x射线分析确定了化合物3e的结构。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Synthesis of pyrano[3,2-c]chromene-2,5-diones from 4-hydroxycoumarins and aminocrotonates under solvent-free conditions†

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Synthesis of pyrano[3,2-c]chromene-2,5-diones from 4-hydroxycoumarins and aminocrotonates under solvent-free conditions†

A new one-pot approach was developed for the construction of pyrano[3,2-c]chromene-2,5-diones by reacting 4-hydroxycoumarins with ethyl 3-oxo-3-phenylpropanoates in the presence of ammonium salts or aminocrotonates under solvent-free conditions. The title compounds were formed by intramolecular cyclization through new C–C and C–O bonds. Structure assignment of compound 3e was confirmed by single crystal X-ray analysis.

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来源期刊

Organic & Biomolecular Chemistry 化学-有机化学

CiteScore

5.50

自引率

9.40%

发文量

1056

审稿时长

1.3 months

期刊介绍： Organic & Biomolecular Chemistry is an international journal using integrated research in chemistry-organic chemistry. Founded in 2003 by the Royal Society of Chemistry, the journal is published in Semimonthly issues and has been indexed by SCIE, a leading international database. The journal focuses on the key research and cutting-edge progress in the field of chemistry-organic chemistry, publishes and reports the research results in this field in a timely manner, and is committed to becoming a window and platform for rapid academic exchanges among peers in this field. The journal's impact factor in 2023 is 2.9, and its CiteScore is 5.5.