hindered and/or labile alcohols has been derivatized with a variety of acylating and silylating agents using pyridine in methylene chloride at 15 kbar (1.5 GPa) pressure to afford excellent yields of protected alcohols at 20 °C, largely without the need for added DMAP. Methoxyethoxymethyl chloride reacted in moderate yield using -diisopropylethylamine under the high pressure conditions.
使用
吡啶在15 kbar(1.5 GPa)的
二氯甲烷溶液中,用各种酰化剂和甲
硅烷基化剂衍生了一系列受阻和/或不稳定的醇,从而在20°C时获得了优异的保护醇收率,基本上不需要添加了
DMAP。甲氧基乙氧基
甲基氯在高压条件下使用-
二异丙基乙胺以中等收率反应。