We have developed a new photocatalytic umpolung reaction of carbonyl compounds to generate anionic carbinol synthons. Aromatic aldehydes or ketones reacted with carbon dioxide in the presence of an iridium photocatalyst and 1,3-dimethyl-2-phenyl-2,3-dihydro-1H-benzimidazole (DMBI) as a reductant under visible-light irradiation to furnish the corresponding α-hydroxycarboxylic acids through nucleophilic
我们开发了一种新的羰基化合物光催化聚合反应,以生成阴离子
甲醇合成子。芳香醛或酮在
铱光催化剂和 1,3-二甲基-2-苯基-2,3-二氢-1 H-
苯并咪唑 (
DMBI) 作为还原剂的存在下与
二氧化碳反应,在可见光照射下提供通过将所得的
甲醇阴离子与亲电
二氧化碳进行亲核加成,生成相应的α-羟基
羧酸。