4.3 Article

Convenient One-Pot Synthesis of 2-Oxazolines from Carboxylic Acids

Journal

CHEMICAL & PHARMACEUTICAL BULLETIN
Volume 56, Issue 12, Pages 1735-1737

Publisher

PHARMACEUTICAL SOC JAPAN
DOI: 10.1248/cpb.56.1735

Keywords

oxazoline; carboxylic acid; 2-haloethylammonium salt; dehydrocondensation; cyclization

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Simple one-pot methods for preparation of 2-oxazolines have been developed using 4-(4,6-dimethoxy-1,3,5triazin-2-yl)-4-methylmorpholinium chloride (DMT-MM). Treatment of a mixture of carboxylic acids and 2-haloethylammonium salts with DMT-MM in methanol followed by refluxing in the presence of KOH gives oxazolines.

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