Medium-sized Cyclophanes. Part 49. O-Alkylation of 8,16-Dihydroxy[2.2]metacyclophane
作者:Takehiko Yamato、Yuta Yamada、Mai Hirahara
DOI:10.1039/a907328k
日期:——
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.
在 K2CO3 存在下,8,16-二羟基 [2.2] 间环芳烷 1 与烷基卤的 O-烷基化得到单-O-烷基化产物 2;在 Cs2CO3 或 NaH 存在下的类似反应以几乎定量的产率提供二烷基化产物 3。