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Reactivity in [4+2] cycloadditions of new 4‐trifluoromethyl‐1,3‐oxazin‐6‐ones: Access to functionalized 2‐trifluoromethyl pyridines

 

作者: François Evariste,   Zdenek Janousek,   Christian Maliverney,   Robert Merényi,   Heinz G. Viehe,  

 

期刊: Journal für Praktische Chemie/Chemiker‐Zeitung  （WILEY Available online 1993）
卷期: Volume 335, issue 1  

页码: 35-41

 

ISSN:0941-1216

 

年代: 1993

 

DOI:10.1002/prac.19933350106

 

出版商: WILEY‐VCH Verlag GmbH

 

数据来源: WILEY

 

摘要:

AbstractRecently discovered 4‐trifluoromethyl‐1,3‐oxazin‐6‐ones react with electron‐poor dienophiles as 2‐aza‐1,3‐dienes in Diels‐Alder cycloadditions to give new 2‐trifluoromethyl pyridines (3a–d,4a–c). Regioselectivity is excellent in the case of unsymmetrical dienophiles. These new pyridines permit furth

 

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