one-pot conversion of stable triisopropylsilyl- and tert-butyldimethylsilyl carboxylates to their corresponding acyl- or aroyl isothiocyanates using in-situ generation of Ph3P(SCN)2 at room temperature under neutral condition. This method has also been applied for the high yield preparation of 2-thioxo-3,4-dihydro-2H-1,3-benzoxazine-4-one, which has fungicidal and bactericidal activities.
摘要描述了一种高效、温和且新颖的方法,可在中性条件下在室温下原位生成 Ph3P(SCN)2,将稳定的
三异丙基甲
硅烷基和叔丁基二甲基甲
硅烷基
羧酸酯一锅法转化为相应的酰基或芳酰基异
硫氰酸酯。该方法还用于高产率制备具有杀菌和杀菌活性的2-thioxo-3,4-dihydro-2H-1,3-benzoxazine-4-one。