Medium-sized Cyclophanes. Part 49. O-Alkylation of 8,16-Dihydroxy[2.2]metacyclophane

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Takehiko Yamato, Yuta Yamada and Mai Hirahara


Abstract

O-Alkylation of 8,16-dihydroxy[2.2]metacyclophane 1 with alkyl halides in the presence of K2CO3 affords the mono-O-alkylated product 2; similar reaction in the presence of Cs2CO3 or NaH affords dialkylated product 3 in almost quantitative yield.


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