Reevaluation of the 2-nitrobenzyl protecting group for nitrogen containing compounds: an application of flow photochemistry
作者:Chloe I. Wendell、Michael J. Boyd
DOI:10.1016/j.tetlet.2015.01.007
日期:2015.2
Photochemistry under continuous flow conditions has many potential benefits for photochemical reactions that are problematic in batch. The 2-nitrobenzyl moiety is a photolabile protecting group for nitrogen. However, N-deprotection is generally impractical and, therefore, has not been extensively adopted. This Letter reports significant improvements in the N-deprotection of the 2-nitrobenzyl group
连续流动条件下的光化学对批量存在问题的光化学反应具有许多潜在的好处。2-硝基苄基部分是氮的光不稳定保护基。然而,N-脱保护通常是不切实际的,因此未被广泛采用。这封信报道了通过连续流动光解法在2-硝基苄基的N-脱保护方面的显着改善。该方法可用于多种底物,包括吲哚,吲唑,吡唑和仲胺。在连续流动条件下,观察到产率,反应时间和可扩展性的显着提高。