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Synthesis and Structure of Indoline Spiropyrans of the Coumarin Series.

✍ Scribed by V. F. Traven; V. S. Miroshnikov; T. A. Chibisova; V. A. Barachevsky; O. V. Venidiktova; Yu. P. Strokach


Publisher
John Wiley and Sons
Year
2006
Weight
21 KB
Volume
37
Category
Article
ISSN
0931-7597

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✦ Synopsis


Abstract

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## Abstract magnified image Condensation of 4‐chloro‐2‐oxo‐2__H__‐chromene‐3‐carbonitrile (**1**) with heteroarylamines **2a‐d** in acetonitrile containing a catalytic amount of triethylamine followed by spontaneous intramolecular cyclization gave the novel coumarin derivatives **3a‐d**, respectiv