Highly ordered acid functionalized SBA-15: a novel organocatalyst for the preparation of xanthenes

[EN] Post-synthesis modification of SBA-15 has been carried out to design highly ordered acid functionalized hybrid mesoporous organosilica, AFS-1. This material has been used as an efficient heterogeneous organocatalyst for the syntheses of xanthenes under mild conditions in the absence of any other metal co-catalyst.JM wishes to thank CSIR, New Delhi, for Senior Research Fellowship.Nandi, M.; Mondal, J.; Sarkar, K.; Yamauchi, Y.; Bhaumik, A. (2011). Highly ordered acid functionalized SBA-15: a novel organocatalyst for the preparation of xanthenes. Chemical Communications. 47(23):6677-6679. doi:10.1039/c1cc11007a667766794723Wang, H., Lu, L., Zhu, S., Li, Y., & Cai, W. (2006). The Phototoxicity of Xanthene Derivatives Against Escherichia coli, Staphylococcus aureus, and Saccharomyces cerevisiae. Current Microbiology, 52(1), 1-5. doi:10.1007/s00284-005-0040-zHafez, H. N., Hegab, M. I., Ahmed-Farag, I. S., & El-Gazzar, A. B. A. (2008). 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