Synthetic communications

Selective Etherification of Calix [4] arenes

WG Wang, QY Zheng, ZT Huang

Index: Wang, Wen-Guang; Zheng, Qi-Yu; Huang, Zhi-Tang Synthetic Communications, 1999 , vol. 29, # 21 p. 3711 - 3718

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Citation Number: 10

Abstract

Abstract Calix [4] arenes 1 or 2 react with alkyl halides and aqueous potassium hydroxide in the presence of PEG as phase transfer catalyst at room temperature to give the selectively distally dietherified product 3 or 4 in excellent yields. While at the same reaction conditions, calix [8] arene 5 give the fully etherified product 6.

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