作者:Hong Yi、Linbin Niu、Shengchun Wang、Tianyi Liu、Atul K. Singh、Aiwen Lei
DOI:10.1021/acs.orglett.6b03403
日期:2017.1.6
have achieved a simple and general method for acetalization of aldehydes by means of a photochemical reaction under low-energy visible light irradiation. A broad range of aromatic, heteroaromatic, and aliphatic aldehydes have been protected under neutral conditions in good to excellent yields using a catalytic amount of Eosin Y as the photocatalyst. Our visible light mediated acetalization strategies are
在这项工作中,我们通过在低能可见光照射下进行光化学反应,实现了一种简单而通用的醛缩醛化方法。使用催化量的曙红Y作为光催化剂,在中性条件下以良好或优异的收率保护了多种芳香族,杂芳香族和脂肪族醛。我们的可见光介导的缩醛化策略可成功用于更具挑战性的酸敏感性醛和位阻醛。值得注意的是,该方案对醛具有化学选择性,而酮则保持完整。