1186-52-3Relevant academic research and scientific papers
1,1-Ethenediol: The Long Elusive Enol of Acetic Acid
Eckhardt, André K.,Mardyukov, Artur,Schreiner, Peter R.
, (2020)
We present the first spectroscopic identification of hitherto unknown 1,1-ethenediol, the enol tautomer of acetic acid. The title compound was generated in the gas phase through flash vacuum pyrolysis of malonic acid at 400 °C. The pyrolysis products were
Ortho-Deuteration of Aromatic Aldehydes via a Transient Directing Group-Enabled Pd-Catalyzed Hydrogen Isotope Exchange
Kong, Junhua,Jiang, Zhi-Jiang,Xu, Jiayuan,Li, Yan,Cao, Hong,Ding, Yanan,Tang, Bencan,Chen, Jia,Gao, Zhanghua
, p. 13350 - 13359 (2021/10/01)
A practical and scalable ortho-selective deuteration of aromatic aldehydes was accomplished by Pd-catalyzed hydrogen isotope exchange with deuterium oxide as an inexpensive deuterium source. The use of tert-leucine as a transient directing group facilitates the exchange, affording a wide range of ortho-deuterated aromatic aldehydes with deuterium incorporation up to 97%. The control experiments suggest that the addition of silver trifluoroacetate resists the unexpected reduction of Pd(II), while the theoretical study indicates a rapid reversible concerted metalation-deprotonation process.
Oxidative cleavage of the carbon-carbon σ-bond using reusable copper on iron
Song, Ren-Jie,Liu, Yu,Hu, Rui-Xiang,Liu, Yan-Yun,Wu, Ji-Cheng,Yang, Xu-Heng,Li, Jin-Heng
scheme or table, p. 1467 - 1473 (2011/08/03)
An efficient and resuble copper on iron catalyst has been prepared for the cleavage of the carbon-carbon σ-bond in α-aminocarbonyl compounds leading to the corresponding formylamides and acids with a maximal TON of up to 51,000. It is noteworthy that the copper on iron catalyst can be easily separated from the reaction mixture, and retains its activity after several reuses. Copyright
