412012-08-9Relevant articles and documents
A triphenylphosphine mediated photo-rearrangement and methanol addition of aryl chalcones to 1-propanones
Sun, Qiu,Yao, Chang Jiang,K?nig, Burkhard
, p. 948 - 952 (2015)
Aryl chalcones rearrange and add methanol to give substituted propane-1-ones upon UV-A irradiation in the presence of PPh3. We propose two possible mechanisms for this photo-rearrangement. The reaction involves either the formation of a phosphi
Cobalt-Catalyzed α-Methoxymethylation and Aminomethylation of Ketones with Methanol as a C1 Source
Yang, Jingya,Chen, Shuwen,Zhou, Hongyan,Wu, Chengqi,Ma, Ben,Xiao, Jianliang
supporting information, p. 6774 - 6779 (2018/10/25)
Using methanol as a sustainable C1 source, cobalt-catalyzed α-methoxymethylation and α-aminomethylation of ketones have been developed. With cheap CoCl2·6H2O as catalyst and TBHP as oxidant, the methoxymethylated products were obtained within a short reaction time in up to 91% yield. Based on the observed reversibility of methoxy adduct to enone, the α-aminomethylation of ketones was then achieved by a one-pot methylenation/aza-Michael addition sequence. In addition, an easy way to convert α-methoxymethyl ketones to α-aminomethyl ketones has been discovered.