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- [22] A facile and efficient method for synthesis of xanthone derivatives catalyzed by HBF4/SiO2 under solvent-free conditions Monatshefte für Chemie - Chemical Monthly, 2009, 140 : 1481 - 1483
- [23] A facile and efficient method for synthesis of xanthone derivatives catalyzed by HBF4/SiO2 under solvent-free conditions MONATSHEFTE FUR CHEMIE, 2009, 140 (12): : 1481 - 1483