1984-59-4Relevant articles and documents
A two-aromatic substituted propylene ketone compound and its preparation method and application (by machine translation)
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Paragraph 0099; 0100; 0101; 0102; 0103, (2019/05/28)
The present invention discloses a two-aromatic substituted propylene ketone compound and its preparation method and application, its structural formula such as formula (I) as shown: Wherein A is B is hydrogen, methyl or ethyl; C is a substituted benzene ring, pyridine and furan heterocyclic, 2 - pyridyl, 3 - pyridyl, 4 - pyridyl, 5 - 1 H - indolyl, 4 - (N, N - dimethylamino) phenyl, 4 - (N - pyrrolyl) phenyl, 4 - [1 - (N - methyl piperazinyl)] phenyl or 4 - (1 - morpholinyl) phenyl. The compounds of the invention has a novel structure, to inhibit the cells MCL active effect, high safety, the preparation cost is low and the like, can be used as a MCL very promising drug. (by machine translation)
Environmental-protection preparation method for high yielding of 1,2,4-oxadiazole compounds containing alpha,beta-unsaturated ketones
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Paragraph 0063; 0064; 0065, (2017/08/30)
The invention provides an environmental-protection preparation method for high yielding of 1,2,4-oxadiazole compounds containing alpha,beta-unsaturated ketones; with 2,3-dichlorophenol as a raw material, an intermediate 5 is obtained through methylation and protection of phenolic hydroxyl groups, Friedel-Crafts acylation, methyl protecting group removal, nucleophilic substitution, ester hydrolysis, aldol condensation and dehydration reaction and then undergoes cyclization reaction with substituted amine oxime to obtain the target products 6r, 6s and 6u. The method has the advantages of mild reaction conditions, has no use of first-class reagents and other reagents harmful on the environment and operating personnel, fewer by-products, stable and controllable reactions, simple postprocessing, high yield and purity, and easy industrialized production.
THE REACTIONS OF UNACTIVATED ARYL HALIDES WITH SODIUM METHOXIDE IN HMPA; SYNTHESIS OF PHENOLS, ANISOLES, AND METHOXYPHENOLS
Testaferri, L.,Tiecco, M.,Tingoli, M.,Chianelli, D.,Montanucci, M.
, p. 193 - 198 (2007/10/02)
Sodium methoxide reacts with dichlorobenzenes in HMPA to give the chloroanisoles as a result of a SNAr process.Excess MeONa then effects the demethylation of the ethers to give the chlorophenols via an SN2 reaction.With tri- and tetrachlorobenzenes the initially formed chloroanisoles can be dealkylated to chlorophenols or can suffer further substitution to give the chlorodimethoxybenzenes; these react with excess MeONa to give the chloromethoxyphenols.The results obtained with the various isomers of the di-, tri-, and tetrachlorobenzenes are presented and discussed on the basis of the electronic effects of the substituents.
