Nano-BF3.SiO2: A reusable and eco-friendly catalyst for thioacetalization and trans-thioacetalization reactions
الموضوعات : Iranian Journal of Catalysis
Bi Bi Fatemeh Mirjalili
1
(Department of Chemistry, College of Science, Yazd University, Yazd. P.O.Box 89195-741, Iran.)
Abdolhamid Bamoniri
2
(Department of Organic Chemistry, Faculty of Chemistry, University of Kashan, Kashan, I. R Iran.)
Ali Akbari
3
(Department of Chemistry, College of Science, Yazd University, Yazd. P.O.Box 89195-741, Iran.)
الکلمات المفتاحية: BF3.SiO2, Nano-BF3.SiO2, Thioacetal, Thioacetalization, Trans-thioacetalization, Protecting group,
ملخص المقالة :
Nano-silica supported boron trifluoride (BF3.SiO2) is an efficient, reusable and eco-friendly catalyst for chemoselective thioacetalization of aldehydes and ketones. So, this catalyst was applied for transthioacetalization of acetals and acylals into their corresponding 1,3-dithiolanes or 1,3-dithianes in good to excellent yields. The reactions were carried out at room temperature under solvent free and grinding conditions in 1.5-2.5 minutes.
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