65565-12-0Relevant articles and documents
Electrochemical-Induced Hydrogenation of Electron-Deficient Internal Olefins and Alkynes with CH3OH as Hydrogen Donor
Qin, Hongyun,Yang, Jianjing,Yan, Kelu,Xue, Yaxuan,Zhang, Meichen,Sun, Xuejun,Wen, Jiangwei,Wang, Hua
supporting information, p. 2104 - 2109 (2021/03/15)
Efficient hydrogenation of electron-deficient internal olefins and alkynes access to saturate ketone with CH3OH as a single hydrogen donor under electrochemical conditions has been successfully developed. This hydrogenation strategy can be used to convert electron-deficient internal olefins and alkynes to saturate ketone under electrochemical conditions with exogenous-reductant and a metal catalyst. Mechanistic studies reveal that radical hydrogenation was involved in this transformation. Notably, various electron-deficient internal olefins and alkynes could be tolerated in such an electrochemical hydrogenation synthetic strategy and can be easily scaled up with good efficiency. (Figure presented.).
Aldehyde-catalyzed transition metal-free dehydrative β-alkylation of methyl carbinols with alcohols
Xu, Qing,Chen, Jianhui,Liu, Quan
supporting information, p. 697 - 704 (2013/04/10)
Different to the borrowing hydrogen strategy in which alcohols were activated by transition metal-catalyzed anaerobic dehydrogenation, the direct addition of aldehydes was found to be an effective but simpler way of alcohol activation that can lead to efficient and green aldehyde-catalyzed transition metal-free dehydrative C-alkylation of methyl carbinols with alcohols. Mechanistic studies revealed that the reaction proceeds via in situ formation of ketones by Oppenauer oxidation of the methyl carbinols by external aldehydes, aldol condensation, and Meerwein-Ponndorf-Verley (MPV)-type reduction of α,β-unsatutated ketones by substrate alcohols, affording the useful long chain alcohols and generating aldehydes and ketones as the by-products that will be recovered in the next condensation to finish the catalytic cycle. Copyright
Selective 1,4-reduction of chalcones with Zn/NH4Cl/C 2H5OH/H2O
Li, Jian-Ping,Zhang, Yong-Xia,Ji, Yan
, p. 390 - 393 (2008/12/20)
In this paper, the Zn/NH4Cl/C2H5OH/H 2O system was applied for the selective 1,4-reduction of chalcones undermild conditions with high selectivity. Themerit lies in inexpensive reagent, simple operation and envi