3438-15-1Relevant academic research and scientific papers
α,3-Didehydro-5-methyl-6-hydroxytoluene: Matrix isolation of a diradical related to the neocarzinostatin chromophore
Sander, Wolfram,Wandel, Holger,Bucher, G?tz,Gr?fenstein, Jürgen,Kraka, Elfi,Cremer, Dieter
, p. 8480 - 8485 (1998)
UV photolysis of 2,6-dimethylcyclohexa-2,5-dien-1-on-4-ylidene (4), matrix isolated in argon at 10 K, results in the formation of a labile species which is characterized as α,3-didehydro-5-methyl-6-hydroxybenzene (5) by comparison of the experimental IR s
Diphenyl ether derivative, pharmaceutical salts thereof and medicinal use
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Paragraph 0271; 0272; 0273; 0274; 0275; 0276, (2019/02/19)
The invention relates to the field of pharmaceutical chemistry and discloses a compound (I) acting in the aspect of treating diseases related to PD-1/PD-L1 signal channels such as cancer, infectious diseases and autoimmune diseases, pharmaceutical salts a
ARYL FLUOROETHYL UREAS ACTING AS ALPHA 2 ADRENERGIC AGENTS
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Page/Page column 25-26, (2008/12/07)
The invention provides well-defined aryl fluoroethyl ureas that are useful as selective alpha2 adrenergic agonists. As such, the compounds described herein are useful in treating a wide variety of disorders associated with modulation of alpha2 adrenergic receptors.
Two efficient methods for the preparation of 2-chloro-6-methylbenzoic acid
Daniewski, Andrzej R.,Liu, Wen,Puentener, Kurt,Scalone, Michelangelo
, p. 220 - 224 (2013/09/06)
Two efficient methods for the preparation of 2-chloro-6-methylbenzoic acid were developed: one based on nucleophilic aromatic substitution and the other based on carbonylation. In the first approach, 2-chloro-6-fluorobenzaldehyde was converted to its n-butylimine, then treated with 2 equiv of methylmagnesium chloride in THF to give, after hydrolysis, 2-chloro-6-methylbenzaldehyde. Subsequent oxidation of this compound gave the title compound in 85% overall yield. In the second approach, 3-chloro-2-iodotoluene was efficiently carbonylated in methanol to give methyl 2-chloro-6-methylbenzoate, which after hydrolysis afforded the title compound in 94% yield (84% yield after recrystallization). The carbomethoxylation proceeded smoothly even at a high substrate-to-Pd ratio of 10 000. Both methods do not require isolation of intermediates and are suitable for the preparation of kilogram quantities of 2-chloro-6-methylbenzoic acid.
