A metal and additive free base-mediated method for the formation of 4H-benzo[d][1,3]dioxin-4-one and its derivatives, from salicylic acids and dichloromethane, was developed using dichloromethane (DCM) and 1,1-dichloroethane (1,1-DCE) as the C1 source.
一种无金属和添加剂的基质介导方法被开发出来,用于从水杨酸和二氯甲烷中形成4H-苯并[d][1,3]二噁英-4-酮及其衍生物,该方法使用二氯甲烷(DCM)和1,1-二氯乙烷(1,1-DCE)作为C1源。