The reaction of MalachiteGreen (MG, 1a), a model compound of triphenylmethanedye, with ozone proceeded via two paths. The first path involved an ozone attack at the dimethylamino moiety to give a N-formylmethylamino derivative 4a. The second path produced 4-(dimethylamino)benzophenone (2a) and p-(dimethylamino)phenol (6). Other ozonized products, 3a and 5a were also detected. The following is a discussion
Photoinduced Oxidative Formylation of <i>N</i>,<i>N</i>-Dimethylanilines with Molecular Oxygen without External Photocatalyst
作者:Shuai Yang、Pinhua Li、Zhihui Wang、Lei Wang
DOI:10.1021/acs.orglett.7b01230
日期:2017.7.7
A photoinduced oxidative formylation of N,N-dimethylanilines with molecularoxygen in the absence of an external photocatalyst was developed and provided the corresponding formamides in good yields under mild reaction conditions. Investigations indicated that both the starting material and product act as photosensitizers and that 1O2 coexists with O2•– during the reaction through energy transfer and
在没有外部光催化剂的情况下,开发了N,N-二甲基苯胺与分子氧的光诱导氧化甲酰化反应,并在温和的反应条件下以良好的收率提供了相应的甲酰胺。研究表明,原料和产物均充当光敏剂,并且在通过能量转移和单电子转移过程的反应过程中,1 O 2与O 2 •–共存。