Citation:
ZUO Chuan-Peng, YANG Zhi-Gao, YIN Du-Lin, YUAN Zhi-Ye, XU Qiong, MAO Li-Qiu. Preparation of Coconut Char Sulfonic Acid and Its Catalytical Application for Synthesis of Calix[4] resorcinarenes[J]. Chinese Journal of Applied Chemistry,
;2010, 27(2): 237-239.
doi:
10.3724/SP.J.1095.2010.90188
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A novel solid sulfonic acid was prepared from coconut shell via carbonization and sulfonation and used as a catalyst for the condensation of aldehydes and resorcinol,and calix[4] resorcinarenes were prepared rapidly in good yield(49%~95%). The structures of the target compounds were confirmed by IR,1H NMR and MS.
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