Umpolung of protons from H<sub>2</sub>O: a metal-free chemoselective reduction of carbonyl compounds via B<sub>2</sub>pin<sub>2</sub>/H<sub>2</sub>O systems
作者:Qingqing Xuan、Cong Zhao、Qiuling Song
DOI:10.1039/c7ob00820a
日期:——
metal-free conditions was successfully developed, which could afford hydride species, leading to a highly efficient and chemoselective reduction of CO bonds. This strategy exhibits excellent chemoselectivities toward carbonyl groups in the presence of ester, olefin, halogen, thioether, sulfonyl, cyano as well as heteroaromatic groups.
H 2 O通常被描述为质子供体,但是,在存在硼化合物的情况下,成功开发了H 2 O在无金属条件下的空泡反应,该反应可提供氢化物,从而实现高效且化学选择性的还原的C O债券。在酯,烯烃,卤素,硫醚,磺酰基,氰基以及杂芳族基团的存在下,该策略对羰基表现出优异的化学选择性。