Carbonyl compounds are rapidly thioacetalized in near quantitative yields by using anhydrous iron(lII) chloride dispersed on silica gel at room temperature. The conversion of carbonyl compounds to the cyclic dithioacetals constitutes an important part of many organic synthetic transformationsi. Di
A Convenient Synthesis of Thioacetates and Thiobenzoates Using Silica-Gel Supported Potassium Thioacetate
โ Scribed by Aoyama, Tadashi; Takido, Toshio; Kodomari, Mitsuo
- Book ID
- 120469267
- Publisher
- Taylor and Francis Group
- Year
- 2003
- Tongue
- English
- Weight
- 205 KB
- Volume
- 33
- Category
- Article
- ISSN
- 0039-7911
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๐ SIMILAR VOLUMES
A novel anomeric b-thioacetate of an N-acetyllactosamine derivative was efficiently synthesized in high yield from the known 2-azido glycosyl chloride using thioacetic acid as a convenient reagent. The synthesis involved not only an S N 2 replacement of the chloride by a carbothiolate anion but also
Lewis acids such as and were supported on silica gel, FeCl 3 ZnCl 2 alumina, zirconia and titania by co-grinding with anhydrous Lewis acids in appropriate proportions in an agate mortar. The catalysts have good shelf life and reusability. Synthesis of diphenylmethanes with these catalysts was studie