Microwave‐Assisted and Ultrasonic‐Assisted Three‐Component Heterocyclization of 4‐Amino‐5‐carboxamido‐1,2,3‐triazole,Thiopyran‐3‐one‐1,1‐dioxide,and Aromatic Aldehydes |
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| Authors: | Eugene S. Gladkov Sergey M. Desenko Irina S. Konovalova Ulrich Groth Oleg V. Shishkin Elena V. Vashchenko Valentin A. Chebanov |
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| Affiliation: | 1. State Scientific Institution “Institute for Single Crystals” of National Academy of Sciences of Ukraine, , Kharkiv, Ukraine, 61001;2. Karazin Kharkiv National University, , Kharkiv, Ukraine, 61077;3. Fachbereich Chemie, Universit?t Konstanz, , Konstanz, Germany, 78457 |
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| Abstract: | ![]()
Three‐component heterocyclization of 4‐amino‐5‐carboxamido‐1,2,3‐triazole, thiopyran‐3‐one‐1,1‐dioxide, and aromatic aldehydes under ultrasonic and microwave irradiation was studied. Regardless of the reaction parameters, 5,6,7,9‐tetrahydro‐4H‐thiopyrano[3,2‐d][1,2,3]triazolo[1,5‐a]pyrimidine‐8,8‐dioxides were isolated as sole reaction products whose structures were proven with help of NMR data and X‐ray analysis. |
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