in Organic Chemistry for both synthetic and biological puproses. Herein, we report a mild, inexpensive and green photochemical protocol, where Schreiner's thiourea (N,N′-bis[3,5-bis(trifluoromethyl)-phenyl]-thiourea) is utilized as the catalyst and cheap household lamps as the light source. A variety of aromatic and aliphatic aldehydes were converted into acetals in good to high yields (23 examples
醛的乙酰化在有机
化学中对于合成和
生物化的小甜菜都非常重要。在此,我们报告了一种温和,便宜且绿色的光
化学方案,其中使用Schreiner的
硫脲(N,N'-双[3,5-双(三
氟甲基)-苯基]-
硫脲)作为催化剂,廉价的家用灯作为光资源。各种芳香族和脂肪族醛均以高产率高收率转化为
缩醛(23个实例,收率36-96%),并提供了合成环状
缩醛的实例。还研究了反应机理。