An innovative and efficient synthesis of stable isotope labelled 1-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole via [ 13 C 42 H 3 ] N -methylpyrazole
✍ Scribed by Manning, Calvin; Athlan, Audrey; Badman, Geoff
- Book ID
- 118762938
- Publisher
- John Wiley and Sons
- Year
- 2012
- Tongue
- French
- Weight
- 186 KB
- Volume
- 55
- Category
- Article
- ISSN
- 0022-2135
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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