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Green Route to the 2,6-Disubstituted Imidazo[2,1-b]-1,3,4-Thiadiazoles by the Cyclocondensation of α-Bromoacetophenone Derivative and 1,3,4- Thiadiazoles Using Ionic Liquids

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An eco-friendly facile synthesis of imidazo[2,1-b]-1,3,4-thiadiazoles is described using ionic liquid, [bmim]PF6 (1-butyl-3-methylimidazolium hexafluorophosphate). The use of recyclable catalyst demonstrates the advantages of significant rate enhancement along with improved yields. The protocol is green and effective for producing the desired target moiety.

Keywords: Thiadiazole; a-bromoacetophenone; imidazo[2,1-b]-1,3,4-; ionic liquid; thiadiazoles

Document Type: Research Article

Affiliations: Department of Chemistry, University of Delhi, Delhi-110007, India.

Publication date: 2006-02-01

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  • Letters in Organic Chemistry publishes original letters on all areas of organic chemistry including synthesis, bioorganic, medicinal, natural products, organometallic, supramolecular, molecular recognition and physical organic chemistry. The emphasis is placed on publishing quality papers very rapidly. Letters are processed rapidly and take full advantage of the Internet technology both for the submission and the review of the manuscripts.
    The journal is essential reading for all organic chemists both in academia and industry.
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