68432-92-8Relevant articles and documents
Cyano ketoprofen synthesis process
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Paragraph 0010; 0012; 0014, (2020/09/30)
The invention relates to a cyano ketoprofen synthesis process, which comprises the following steps: acylating chlorination, chlorination, esterification, cyaniding, distillation, methylation, hydrolysis, refining, acylation Friedel-Crafts ice precipitation distillation, and refining to finally obtain the cyano ketoprofen finished product. According to the cyano ketoprofen synthesis process, the synthesized product is low in cost, by acylating chlorination, esterification, cyaniding, methylation, Friedel-Crafts acylation and hydrolysis reaction, the product is prepared from m-toluic acid as a starting material, the process and the operation process are simplified, the safety and the reliability are provided, the wastewater and the waste gas generated during the reaction process are recycled, and the residue generated in the kettle is subjected to hazardous waste treatment, such that the environment is protected, the industrial production is promoted, the production efficiency is improved, and the purity of the synthesized finished product achieves 99% or more.
Palladium-Catalyzed, ortho-Selective C-H Halogenation of Benzyl Nitriles, Aryl Weinreb Amides, and Anilides
Das, Riki,Kapur, Manmohan
, p. 1114 - 1126 (2018/06/18)
A palladium-catalyzed, ortho-selective C-H halogenation methodology is reported herein. The highlight of the work is the highly selective C(sp2)-H functionalization of benzyl nitriles in the presence of activated C(sp3)-H bond, which results in good yields of the halogenated products with excellent regioselectivity. Along with benzyl nitriles, aryl Weinreb amides and anilides have been evaluated for the transformation using aprotic conditions. Mechanistic studies yield interesting aspects with respect to the pathway of the reaction and the directing group abilities.
HIGHLY WATER-SOLUBLE SALTS OF A SHORT ACTING PHENYLALKYLAMINE CALCIUM CHANNEL BLOCKER AND USES THEREOF
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Page/Page column 22, (2016/11/02)
The present invention includes surprisingly water-soluble salts of a phenylalkylamine compound that are potent antagonists of L-type calcium channels. Aqueous solutions including salts of the instant invention are formulated for nasal administration and provide a novel therapeutic platform for the treatment of stable angina, migraine, and cardiac arrhythmia, such as paroxysmal supraventricular tachycardia.