Under UV irradiation in the presence of iron(III) chloride or iron(III) triflate in pyridine, D-glucose, D-mannose, and D-galactose underwent a selective bond cleavage at the C1–C2 position, producing 4-O-formyl-D-arabinopyranose and 4-O-formyl-D-lyxopyranose. D-Fructose, under the same conditions, gave arabino-γ-lactone. The reaction was interpreted in terms of the photoinduced electron transfer within
在存在于
吡啶中的
氯化
铁 (III) 或
三氟甲磺酸铁 (III) 的紫外线照射下,
D-葡萄糖、
D-甘露糖和
D-半乳糖在 C1-C2 位置发生选择性键裂解,产生 4-O-甲酰基-
D-阿拉伯吡喃糖和4-O-甲酰基-D-
吡喃
吡喃糖。
D-果糖,在相同条件下,得到阿拉伯-γ-内酯。该反应被解释为
铁离子与
碳水化合物分子螯合物内的光致电子转移。