【摘要】 提出了一种合成邻苯二酚缩甲醛的新方法。以二氯甲烷,邻苯二酚为原料,采用冷凝分水技术合成该化合物。研究了反应温度,反应时间对收率的影响,确定了最佳工艺条件:44g邻苯二酚的二甲基亚砜溶液,43mL二氯甲烷,适量45.7%的NaOH溶液共热;在110～115℃反应2～3h。更多还原

【Abstract】 A new method of synthesizing 1,3-Benzodioxole was proposed.1,3-Benzodioxole was prepared by using dichloromethane and catechol as material,used condensation to drain away of water in reaction system.The effect of reaction tempecture and time on the yield was researched,and the optimum process conditions were confirmed:44g catechol in 40mL DMSO,43mL dichloromethane,45.7% solusion of sodium hydroxide,reaction temperture 110～115℃,reaction time 2～3h.更多还原