📜2-氨基-N-苯基乙酰胺置于乙醇,水,Mercury Dichloride体系中,化学反应生成苯基乙内酰脲-甘氨酸 参考文献:Johnson; Hill; Kelsey,Journal Of The American Chemical Society,1920,Vol. 42,P. 1714,1719 标题:Johnson; Hill; Kelsey,Journal Of The American Chemical Society,1920,Vol. 42,P. 1714,1719
专利号:US-3943142-A 优先权日:1969-01-24 标 题:Dye intermediates and their preparation and use in the synthesis of methine dyes 发明人:OWEN JOHN R 权利人:EASTMAN KODAK CO 摘要:Compositions of matter are provided comprising a stable, non-vaporous monomeric methylene base selected from a 2-methylenethiazoline; a 2-methylenebenzothiazoline; a 2-methylenenaphthothiazoline; a 2-methylenebenzoselenazoline; and a 2-methylenenaphthoselenazoline. The compositions of the invention are prepared by reacting the parent 2-methyl quaternary salt with a non-hydroxylic base which removes a proton of the heterocyclic salt together with a proton acceptor which inhibits build-up of the hydro salt of the non-hydroxylic base, the reaction being conducted under anhydrous conditions in a non-hydroxylic liquid in which the heterocyclic quaternary salt is sufficiently insoluble to inhibit dimer formation. The compositions of the invention are employed in the preparation of methine dyes.
参考标题:One-Pot Synthesis, Theoretical Study And Antimicrobial Activity Of 5,5′-(1,4-Phenylenebis-(Methanylylidene))Bis(3-Aryl(Alkyl)-2-Thioxoimidazolidin-4-One) Derivatives 作者:Raafat M. Shaker,Hisham A. Abd El-Naby,Essam Kh. Ahmed,Mahmoud A. A. Ibrahim,Sageda A. Gedamy |发布日期:2019.2.1 摘要:Abstract A Simple, Facile, And Convenient Practical Method For The One-Pot Synthesis Of Pharmaceutically Interesting 5,5`-(1,4-Phenylenebis-(Methanylylidene))Bis-Thiohydantoins Via A Three-Component Condensation Reaction Of Terephthalaldehyde, α-Amino Acids And Isothiocyanates Had Been Developed. The S-Alkylated Derivatives 6A And 6B Were Obtained By The Alkylation Of The Bis-Thiohydantoins 4A With
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