Photocatalytic Carbinol Cation/Anion Umpolung: Direct Addition of Aromatic Aldehydes and Ketones to Carbon Dioxide
作者:Shintaro Okumura、Yasuhiro Uozumi
DOI:10.1021/acs.orglett.1c02592
日期:2021.9.17
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。