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Synthesis of 7-Hydroxyspiropyran |
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| Authors: | Young Jin Cho Seung Hwan Lee Jong Woo Bae Sung Hoon Kim Sam Rok Keum Cheol Min Yoon |
| Affiliation: | 1. Department of Chemistry , College of Science and Technology, Korea University , Korea;2. Department of Life Science &3. Biotechnology, Graduate School of Biotechnology , Korea University , Korea;4. Department of Dyeing and Finishing , KyungPook National University , Korea |
| Abstract: | The 7-acetoxyspiropyrans (4a and 4b) have been prepared by the reaction of Fischer's bases (3) with 2,4-diacetoxybenzaldehyde in refluxing ethanol in moderate yields. The acetyl group of 7-acetoxy-spiropyran 4a was easily removed to give a 7-hydroxyspiropyran 6 in high yield under the basic condition. |
| Keywords: | Biginelli reaction 3,4-Dihydropyrimidin-2(1H)-one one-pot multicomponent synthesis trimethylsilyl chloride |