Microwave Assisted Efficient Synthesis and Crystal Structures of O-Hexadecalkylated Pyrogallol[4]arenes |
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Authors: | CHEN Jiao CHEN Weifeng YAN Chaoguo |
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Institution: | College of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, China |
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Abstract: | Under microwave irradiation alkylation reactions of sixteen phenolic hydroxyl groups in tetra(p‐hydroxyphenyl)pyrogallol4]arene with alkylating reagents such as n‐butyl iodide, benzyl chloride, and ethyl α‐chloroacetate were finished quickly in one step to give the fully O‐alkylated products. The X‐ray single crystal diffraction showed that the three peralkylated pyrogallol4]arenes existed in rctt (cis‐trans‐trans) configuration. |
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Keywords: | calixarene pyrogallolarene pyrogallol microwave alkylation crystal structure |
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