Bharadwaj, Saitanya K. ; Sharma, Susanda N. ; Hussain, Sahid ; Chaudhuri, Mihir K. (2009) Chemoselective sulfoxidation by H2O2 or HNO3 using a phosphate impregnated titania catalyst Tetrahedron Letters, 50 (27). pp. 3767-3771. ISSN 00404039
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Official URL: http://doi.org/10.1016/j.tetlet.2009.03.106
Related URL: http://dx.doi.org/10.1016/j.tetlet.2009.03.106
Abstract
A variety of organosulfur compounds have been selectively oxidized to the corresponding sulfoxides by either H2O2 or HNO3 using a newly developed solid acid catalyst composed of 84.5% of TiO2 and 15.5% of [Ti4H11(PO4)9]·nH2O (n = 1–4). The chemoselective oxidation of sulfides in the presence of vulnerable groups such as –CN, –Cdouble bondC–, –CHO, or –OH, as well as sulfoxidation of substrates like benzothiazole, glycosyl sulfide, and dibenzothiophenes is some of the important attribute of the protocol. Nitric acid, under the present experimental conditions, brings about relatively better selectivity than hydrogen peroxide.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Ltd |
| Keywords: | Heterogeneous catalysis;Chemoselective sulfoxidation;Hydrogen peroxide;Nitric acid |
| ID Code: | 134058 |
| Deposited On: | 03 Jan 2023 09:19 |
| Last Modified: | 03 Jan 2023 09:19 |
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