Potassium phosphate or silica sulfuric acid catalyzed conjugate addition of thiols to α,β-unsaturated ketones at room temperature under solvent-free conditions |
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| Authors: | D.M. Pore M.S. Soudagar U.V. Desai T.S. Thopate P.P. Wadagaonkar |
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| Affiliation: | aDepartment of Chemistry, Shivaji University, Kolhapur 416 004, India;bPolymer Science and Engineering Division, National Chemical Laboratory, Pune 411 008, India |
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| Abstract: | Potassium phosphate and silica sulfuric acid have been found to be useful and highly efficient catalysts for conjugate addition of thiols to α,β-unsaturated ketones under solvent-free conditions, at room temperature. Silica sulfuric acid (SSA) was found to be suitable for electron-deficient enones while potassium phosphate was found to effect thia-Michael addition with both, electron-deficient as well as electron-rich conjugated ketones. |
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| Keywords: | Michael addition Chalcones Conjugated enones Silica sulfuric acid Potassium phosphate Thiols α ,β -Unsaturated ketones |
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