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2005 Oxadiazole derivatives R 0290 Microwave Accelerated Solvent-Free Synthesis of 1,3,4-Oxadiazoles Using Poly- mer Supported Dehydration Reagent. — A rapid, high-yielding protocol for the one-step synthesis of coumarinyloxadiazoles (III) (9 examples) from coumarin-3-car- boxylic acid and benzoic acid hydrazides using polyethylene glycol supported dichlo- rophosphate as dehydration reagent is developed. — (LI*, Z.; YU, J.; DING, R.; WANG, Z.; WANG, X.; Synth. Commun. 34 (2004) 16, 2981-2986; Coll. Chem. Chem. Eng., Northwest Norm. Univ., Lanzhou, Gansu 730070, Peop. Rep. China; Eng.) — H. Toeppel 02- 124

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Page 1: Microwave Accelerated Solvent-Free Synthesis of 1,3,4-Oxadiazoles Using Polymer Supported Dehydration Reagent

2005

Oxadiazole derivativesR 0290 Microwave Accelerated Solvent-Free Synthesis of 1,3,4-Oxadiazoles Using Poly-

mer Supported Dehydration Reagent. — A rapid, high-yielding protocol for the one-step synthesis of coumarinyloxadiazoles (III) (9 examples) from coumarin-3-car-boxylic acid and benzoic acid hydrazides using polyethylene glycol supported dichlo-rophosphate as dehydration reagent is developed. — (LI*, Z.; YU, J.; DING, R.; WANG, Z.; WANG, X.; Synth. Commun. 34 (2004) 16, 2981-2986; Coll. Chem. Chem. Eng., Northwest Norm. Univ., Lanzhou, Gansu 730070, Peop. Rep. China; Eng.) — H. Toeppel

02- 124

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