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Molecular iodine in [bmim][BF4]: a highly efficient green catalytic system for one-pot synthesis of 1,3-oxathiolan-5-one

✍ Scribed by Manika Dewan; Ajeet Kumar; Amit Saxena; Arnab De; Subho Mozumdar

Publisher: Elsevier Science
Year: 2010
Tongue: French
Weight: 456 KB
Volume: 51
Category: Article
ISSN: 0040-4039
DOI: 10.1016/j.tetlet.2010.09.052

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✦ Synopsis

Aldehydes and mercaptoacetic acid are coupled in the presence of a catalytic amount of economical and non-toxic molecular iodine in [bmim][BF 4 ] ionic liquid under mild conditions to afford the corresponding 1,3-oxathiolan-5-one in excellent yields. Molecular iodine acts faster in ionic liquids when compared to conventional solvents such as DMSO, DMF, ethyl acetate, and acetonitrile. The recovered ionic liquids can be recycled in subsequent reactions with consistent activity.

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