29509-04-4Relevant academic research and scientific papers
Enantioselective dearomative [3+2] annulation of 5-amino-isoxazoles with quinone monoimines
Liu, Hui,Yan, Yingkun,Zhang, Jiayan,Liu, Min,Cheng, Shaobing,Wang, Zhouyu,Zhang, Xiaomei
supporting information, p. 13591 - 13594 (2020/11/17)
The first enantioselective dearomative [3+2] annulation of 5-amino-isoxazoles with quinone monoimines was realized using a chiral phosphoric acid as catalyst. Various novel (bridged) isoxazoline fused dihydrobenzofurans bearing two continuous quaternary stereocenters were achieved in moderate to good yields (up to 94%) with moderate to good enantioselectivities (up to 98% ee). The absolute configurations of two products were assigned by X-ray crystal structural analyses and a plausible reaction mechanism was proposed. This journal is
Aryl Halides as Convenient Precursors of Electrogenerated Bases. Efficient Syntheses of β-Oxo Nitriles or Esters by Coupling Active-hydrogen Groups with Esters
Barhdadi, Rachid,Gal, Jacques,Heintz, Monique,Troupel, Michel
, p. 50 - 51 (2007/10/02)
In an undivided cell fitted with a sacrificial anode and a nickel cathode on which cadmium had been deposited, the electroreduction of aromatic halides affords a strong base which allows the effective synthesis of β-oxo nitriles or β-oxo esters from the coupling of active-hydrogen compounds with esters.
Process for the production of 3-oxonitriles
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, (2008/06/13)
3-oxonitriles are produced by reaction of carboxylic acid esters with carboxylic acid nitriles in the presence of 70 to 80% suspension of sodium hydride in white oil. The oxonitrile are intermediate products for the production of 3-oxocarboxylic acid amides or esters and pesticides.
