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Regioselective Synthesis of Coumarin and Quinolone‐Annulated Spiro Heterocycles via Aryl Radical Cyclization

✍ Scribed by Majumdar, K. C.; Mukhopadhyay, P. P.; Basu, P. K.

Book ID: 118743170
Publisher: Taylor and Francis Group
Year: 2005
Tongue: English
Weight: 115 KB
Volume: 35
Category: Article
ISSN: 0039-7911
DOI: 10.1081/SCC-200057236

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## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.

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## Abstract magnified image The tin hydride‐mediated aryl radical cyclization of a number of 4‐(2′‐bromo‐__N__‐methylanilino)methyl‐1‐alkylquinolin‐2(1__H__)‐ones under mild neutral condition afforded 1‐alkyl‐3,4‐dihydroquinolin‐2(1__H__)‐one‐4‐spiro‐3′‐(1‐methylindolines) in excellent yield. The