A photoinduced electron-transfer (PET) reaction was used for the deoxygenation at C-2 of aldonolactones derivatized as 2-O-[3-(trifluoromethyl)benzoyl] or benzoyl esters. By irradiation of different D-galactono- and D-glucono-1,4-derivatives, with a 450W lamp, using 9-methylcarbazole as photosensitizer, the corresponding 2-deoxy-D-lyxo- and 2-deoxy-D-arabino-hexono-1,4-lactones were efficiently obtained
光致电子转移(PET)反应用于衍生为2-O- [3-(三
氟甲基)苯甲酰基]或苯甲酰基酯的烯醇内酯在C-2处的脱氧。通过使用9-甲基
咔唑作为光敏剂,用450W灯照射不同的
D-半乳糖基和
D-葡萄糖基1,4-衍
生物,相应的2-deoxy-D-lyxo-和2-deoxy-D-arabino-有效地获得了六邻体-1,4-内酯。