CAS: 28141-13-1; 1-Ethyl-6-Hydroxy-4-Methyl-2-Oxo-1,2-Dihydropyridine-3-Carbonitrile

相似化合物

39108-47-9 27074-03-9 1017420-64-2

上下游产品

CAS号75-04-7 乙胺 | CAS号105-45-3 乙酰乙酸甲酯 | CAS号105-34-0 氰乙酸甲酯 | CAS号141-97-9 乙酰乙酸乙酯 | CAS号105-56-6 氰乙酸乙酯

乙胺,乙酰乙酸甲酯,氰乙酸乙酯置于silica Gel体系中,化学反应 0.03H,以94%的收率获得1-乙基-1,2-二氢-6-羟基-4-甲基-2-氧代-3-吡啶氰
参考文献:An Efficient Method For The Synthesis Of 3-Cyano-6-Hydroxy-2(1 H )-Pyridinones Under Microwave Irradiation And Solvent-Free Conditions
标题:An Efficient Method For The Synthesis Of 3-Cyano-6-Hydroxy-2(1 H )-Pyridinones Under Microwave Irradiation And Solvent-Free Conditions
摘要:Three Component Condensation Of Alkylacetoacetates,Primary Amines,And Alkyl Cyanoacetates Catalyzed By Solid Supports Under Microwave Irradiation Gave N-Alkyl 3-Cyano-6-Hydroxy-2(1H)-Pyridinones With High Yields. Upon Carrying Out The Reaction Under The Same Condition On Acidic Alumina,Zeolite Hy,Silica Gel,And Montmorillonite K-10,The Best Yields Were Achieved By Silica Gel.
Doi:10.1007/s00706-002-0551-2

专利信息

专利号:WO-2025107145-A1
优先权日:2023-11-21
标题:Continuous synthesis method for disperse yellow dye
发明人：TAO GUOLAI; TAO ANDI; DING YONGCAI; YANG JIE; MOU ZHONGYUE
权利人:LEPING SAFELY PHARMACEUTICAL CO LTD
摘要:The present invention relates to the technical field of fine organic chemicals, and provides a continuous synthesis method for a disperse yellow dye. Continuous tubular reaction technology is used. A continuous tubular reactor provided by the present invention has a small volume, a large specific surface area, and a large heat transfer area per unit volume. The continuous tubular reactor can promptly transfer reaction heat by means of heat exchange and can ensure safety while accelerating the feeding speed. The continuous tubular reaction provided by the present invention precisely controls a raw material ratio, so that a feeding ratio of main raw materials is close to a theoretical value. In addition, by means of introducing an automatic control system, the chemical reaction can be carried out at a raw material ratio that strictly follows an optimal set value. The mass transfer and heat transfer effect of the continuous reactor is relatively good. Following the improvement to the mass transfer and heat transfer effect, the temperature control is more precise, and the generation of by-products is reduced.

专利号:US-4118384-A
优先权日:1976-02-21
标题 :Process for preparation of azo dyestuffs by coupling in presence of aromatic sulphonic acid-formaldehyde reaction product
发明人：MOLLS HANS-HEINZ; SCHIWY WILLY; HORNLE REINHOLD; NEBELING REINHARD
权利人:BAYER AG
摘要:Dyestuff dispersions and dyestuff solutions free from salt or at least having a low salt content are obtained in that the diazotization is carried out with addition of free dispersing agent acid to which, after the synthesis, either no basic agents are added or basic agents are added only up to a pH value of 3. The disclosed process gives dyestuff compositions of low salt content and results in readily dispersible dyestuffs when water insoluble dyestuffs are prepared and stable solutions when water soluble dyestuffs are prepared. The process is widely applicable and chemical constitution of the dyestuffs is conventional.

专利号:WO-2024074814-A9
优先权日:2022-10-04
标题 :Composition comprising a functionalised dye and a diallylamine comonomer and use thereof
发明人：CANNON PAUL; DONLEY ADAM; LAWRENCE ANTHONY; WRIGHT GAVIN; TURNER CARL; ROBERTS PHILIP
权利人:SUBLINO LTD; COLOUR SYNTHESIS SOLUTIONS LTD
摘要:The present teachings relate to a composition comprising a functionalised dye and a diallylamine comonomer, and the use of such compositions in methods of colouring a substrate. The present teachings provide improved bonding of a dye to a substrate, and preferably allow colouring to be conducted entirely in the presence of an aqueous solvent.

专利号:CN-116554705-A
优先权日:2023-05-11
标题:A kind of continuous synthesis method of disperse yellow dye

专利号:CN-116814089-A
优先权日:2023-02-01
标题 :Synthesis process of disperse dyes and disperse dyes

专利号:CN-116814089-B
优先权日:2023-02-01
标 题:Synthesis process of disperse dyes and disperse dyes