- Reactions between Weinreb amides and 2-magnesiated oxazoles: a simple and efficient preparation of 2-acyl oxazoles.
Reactions between Weinreb amides and 2-magnesiated oxazoles: a simple and efficient preparation of 2-acyl oxazoles.
The Journal of organic chemistry (2007-06-26)
Daniel J Pippel, Christopher M Mapes, Neelakandha S Mani
PMID17585818
ABSTRACT
Treatment of oxazole or 5-aryl oxazoles with i-PrMgCl smoothly generates the corresponding 2-Grignard reagents, which react with Weinreb amides to provide exclusively 2-acyl oxazole products.