120-67-2Relevant articles and documents
Aryl ethers of 4-[(2-hydroxyethyl)sulfanyl]pyrimidine derivatives: Pathways of synthesis and fungicidal activity of their salt forms
Erkin,Klaptyuk,Gurzhii,Yuzikhin,Krutikov
, p. 1274 - 1281 (2016)
2-Amino-4-[(2-aryloxyethyl)sulfanyl]-6-methylpyrimidines were obtained by S-alkylation of 2-amino-6-methylpyrimidin-4(3H)-thione with 2-aryloxyethyl chlorides. Since 2-amino-4-[(2-chloroethyl)sulfanyl]-6-methylpyrimidine is prone to in situ intramolecular cyclization it cannot be used in Claisen reaction. The bromination of the target compounds provided 5-bromo derivatives; some of their hydrochlorides exhibited fungicidal activity.
A method for preparing chloro-benzene oxygen carboxylic acid (by machine translation)
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Paragraph 0049-0050; 0053-0054; 0056-0057; 0077; 0078, (2019/01/08)
The invention provides a method for preparing carboxylic acid chloro-benzene oxygen, comprising the following steps: S1) phenoxy fatty alcohol in the catalyst B A and under the action of the catalyst, and the chlorinating agent to 2 bit and/or 4 bit selective chlorination reaction, to obtain chloro-benzene oxygen fatty alcohol; said catalyst A is Lewis acid; said catalyst B is C5 - 22 of the thioether, thiazole, isothiazole, thiophene or their halogenated derivatives; S2) [...] fatty alcohol and water, under the action of a catalyst, and an oxidizing agent for the selective catalytic oxidation reaction, get chloro-benzene oxygen carboxylic acid. The invention through the re-design of the process route, the catalyst and the chlorinating agent fine screening, effectively reduces the energy consumption, the selectivity of the dichloride to improve at the same time avoiding the losses of the active ingredient, the resulting chloro-benzene oxygen carboxylic acid content can be up to 98.5% or more, the total yield can be up to 99% or more. (by machine translation)
Reduction of carboxylic acids using esters of benzotriazole as high-reactivity intermediates
Morales-Serna, Jose Antonio,Garcia-Rios, Erendira,Bernal, Jorge,Paleo, Ehecatl,Gavino, Ruben,Cardenas, Jorge
experimental part, p. 1375 - 1382 (2011/06/19)
Herein, we describe a simple and practical protocol for the reduction of carboxylic acids via the in situ formation of hydroxybenzotriazole esters followed by reaction with sodium borohydride to give the corresponding alcohols. The reaction proceeds with excellent yields in the presence of water. Georg Thieme Verlag Stuttgart - New York.
