62509-81-3Relevant articles and documents
Palladium-Catalyzed Synthesis of α-Methyl Ketones from Allylic Alcohols and Methanol
Biswal, Priyabrata,Chandrasekhar, Vadapalli,Meher, Sushanta Kumar,Samser, Shaikh,Venkatasubbaiah, Krishnan
supporting information, (2021/11/01)
One-pot synthesis of α-methyl ketones starting from 1,3-diaryl propenols or 1-aryl propenols and methanol as a C1 source is demonstrated. This one-pot isomerization-methylation is catalyzed by commercially available Pd(OAc)2 with H2O as the only by-product. Mechanistic studies and deuterium labelling experiments indicate the involvement of isomerization of allyl alcohol followed by methylation through a hydrogen-borrowing pathway in these isomerization-methylation reactions.
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.
Catalyzed Reactions of Enol Ethers with SN1 Active Groups: A Novel Method for the Preparation of α-Alkylated Ketones
Gansaeuer, Andreas,Fielenbach, Doris,Stock, Christoph,Geich-Gimbel, Daniel
, p. 1017 - 1030 (2007/10/03)
The performance of tert-alkylations, alkoxyalkylations, and aldehyde enolate allylations proceeding with low catalyst loading (0.1 mol % - 5 mol %) is described. The reactions are complete within short times and can even be performed without solvent and under ambient conditions. The mechanism of the reaction was investigated by deuterium labeling and cross-over studies.