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- [35] 2-Methyl-2-(trimethylsilyloxy)-3,4-dihydro-2H, 5H-pyrano[3,2-c][1] benzopyran-5-one ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS, 2005, 61 : O3704 - O3705
- [36] 2,4-diphenyl-2-(trimethylsilyloxy)-3-dihydro-2H, 5H-pyrano[3,2-c][1] benzopyran-5-one ACTA CRYSTALLOGRAPHICA SECTION E-STRUCTURE REPORTS ONLINE, 2006, 62 : O1397 - O1398
- [40] CONDENSATION OF 4-HYDROXYCOUMARINS WITH 2-METHYLBUT-3-EN-2-OL - SYNTHESIS OF 2,2-DIMETHYL-2H, 5H-PYRANO-[3,2-C][1]BENZOPYRAN-5-ONES INDIAN JOURNAL OF CHEMISTRY SECTION B-ORGANIC CHEMISTRY INCLUDING MEDICINAL CHEMISTRY, 1984, 23 (12): : 1291 - 1292