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Diastereoselective Cyclisation of N-Alkenylideneamines into 3,4-Dihydro-2H-pyrrol-1-ium Halides

✍ Scribed by Daniela Schley; Jürgen Liebscher


Publisher
John Wiley and Sons
Year
2007
Tongue
English
Weight
254 KB
Volume
2007
Category
Article
ISSN
1434-193X

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## Abstract magnified image One‐pot reaction of 3‐aryl‐5‐methyl‐1,3,4‐oxadiazolin‐2‐ones **1a‐g** with ethanolamine yielded the 4‐(2‐hydroxyethyl)‐2‐aryl‐5‐methyl‐2,4‐dihydro‐3__H__‐1,2,4‐triazolin‐3‐ones **2a‐g** which were converted to the azido compounds **6a‐g**. These azides on 1,3‐dipolar cy