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通过芳胺、色酮和环戊烷-1,3-二酮的三组分反应合成螺[dihydropyridine-oxindoles]。

Synthesis of spiro[dihydropyridine-oxindoles] via three-component reaction of arylamine, isatin and cyclopentane-1,3-dione.

机构信息

College of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225002, China.

出版信息

Beilstein J Org Chem. 2013;9:8-14. doi: 10.3762/bjoc.9.2. Epub 2013 Jan 3.

Abstract

A fast and convenient protocol for the synthesis of novel spiro[dihydropyridine-oxindole] derivatives in satisfactory yields was developed by the three-component reactions of arylamine, isatin and cyclopentane-1,3-dione in acetic acid at room temperature. On the other hand the condensation of isatin with two equivalents of cyclopentane-1,3-dione gave 3,3-bis(2-hydroxy-5-oxo-cyclopent-1-enyl)oxindole in high yields. The reaction mechanism and substrate scope of this novel reaction is briefly discussed.

摘要

一种快速便捷的方法,可在醋酸中室温条件下,通过芳胺、色胺和环戊烷-1,3-二酮的三组分反应,以满意的收率合成新型螺[二氢吡啶-氧吲哚]衍生物。另一方面,色胺与两当量的环戊烷-1,3-二酮缩合得到 3,3-双(2-羟基-5-氧代环戊-1-烯基)氧吲哚,产率很高。简要讨论了这种新反应的反应机制和底物范围。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a6a8/3566796/d1e2b170fc7f/Beilstein_J_Org_Chem-09-08-g006.jpg

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