Nano-BF3.SiO2: A reusable and eco-friendly catalyst for thioacetalization and trans-thioacetalization reactions

محورهای موضوعی : Iranian Journal of Catalysis

Bi Bi Fatemeh Mirjalili ¹ , Abdolhamid Bamoniri ² , Ali Akbari ³

1 - Department of Chemistry, College of Science, Yazd University, Yazd. P.O.Box 89195-741, Iran.
2 - Department of Organic Chemistry, Faculty of Chemistry, University of Kashan, Kashan, I. R Iran.
3 - Department of Chemistry, College of Science, Yazd University, Yazd. P.O.Box 89195-741, Iran.

تاریخ دریافت : 1390/07/22 تاریخ پذیرش : 1390/09/02 تاریخ انتشار : 1390/09/10

کلید واژه: BF3.SiO2, Nano-BF3.SiO2, Thioacetal, Thioacetalization, Trans-thioacetalization, Protecting group,

چکیده مقاله :

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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