ammonia and air is introduced into the ammoxidation comprising reaction zone catalyst, hydrocarbons, acids, ammonia and oxygen over the catalyst at an elevated temperature to produce acrylonitrile, hydrogen cyanide and acetonitrile, and recovering the acrylonitrile, hydrogen cyanide and acetonitrile from the...
Quantum chemical calculations are used to study the reaction of carboxylic acids with isonitriles inside a resorcinarene‐based self゛ssembled capsule. Experimentally, it has been shown that the reactions between p ‐tolylacetic acid and n ‐butyl isonitrile or isopropyl isonitrile behave ...
So the carboxyl content in XNBR is difficult to be accurately determined by the routine titrimetric analysis, especially for those with low carboxyl contents. Olefin cross metathesis reaction, in which C=C double bonds undergo cleavage and reforming processes, has been used for the degradation of ...
This side reaction as well as the undesired formation of alcohols and ethers, which sometimes takes place in aqueous media or with alcohols as solvent, is of course due to the basicity of the cyanide ion. Under deleterious conditions one may even observe carboxylic acids, which result from the...
6) Grignard reaction 格氏反应 1. The Grignard Reaction of Genipin Derivatives 栀子苷元衍生物的格氏反应 2. The research on preparation of alkyl fluorenecarboxylic acid by Grignard reaction 通过格氏反应制备羧酸烷基芴的方法研究 3. After the ether was brominated with high-selective bromating agent...
Interactive 3D chemistry animations of reaction mechanisms and 3D models of chemical structures for students studying University courses and advanced school chemistry hosted by University of Liverpool
Therefore, it is highly desirable to search for a convenient and sustainable approach for a one-pot efficient conversion of aryl acetonitriles to highly deuterated α,β-DAEAs using inexpensive and safe D2O as a deuterated source under ambient conditions, and to unveil the underlying reaction ...
Sign in to download full-size image Scheme 14.Nitrile hydrolysis by whole cells fromRhodococcussp.110 Table 1.Isolated yields and ee values for nitrile hydrolysis by whole cells fromRhodococcussp. (after a reaction time of 24h)110 EntrySubstrateNitrile %Amide %Acid %Microorganism ...
to give 1,4-dihydro-1-phenyl-[1]-benzothiopyrano[4,3-c]pyrazole-3-carboxylic acid (2.8 g) which is reacted with oxalyl chloride (17 g) under stirring, at room temperature for 8 hours. The reaction mixture is evaporated to dryness in vacuo and the residue, 1,4-dihydro-1-phenyl-[...
To 300 mg (1.19 mmol) of ethyl (1R,2S)-2-aminocyclohexanecarboxylate HBr salt (Xu, Daquiang et al., Tetrahedron:Asymmetry (1988), 9(10) 1635) dissolved in 8 mL DMF was added 192 mg (1.19 mmol) of indole-2-carboxylic acid, 228 mg (1.19 mmol) of EDCI, 161 mg (1.19 mmol) of...