Synthesis of 2-furylcarbinol derivatives by an acid-catalysed rearrangement of 2,5-dimethoxy-2,5-dihydrofurans
作者:Cristina Cecchini、Franco D'Onofrio、Giovanni Piancatelli
DOI:10.1016/s0040-4039(00)61522-8
日期:1993.12
2,5-Dimethoxy-2,5-dihydrofurans 1 undergo an acid-catalysed rearrangement to 2-furylcarbinol derivatives 2. The reaction shows to be higly regioselective. The diene 3 is found to be the key-intermediate, and its formation can be utilized for the one-pot preparation of 2-methoxyl-1,6-dioxaspiro[4.4]non-3-en 5.
2,5-二甲氧基-2,5-二氢呋喃1经过酸催化的重排反应生成2-呋喃基甲醇衍生物2。该反应显示出区域选择性高。发现二烯3是关键中间体,其形成可用于一锅制备2-甲氧基-1,6-二氧杂螺[4.4] non-3-en 5。