CAS: 120-00-3; N-(4-Amino-2,5-Diethoxyphenyl)Benzamide

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CAS号135-41-1 2',5'-Diethoxy-...

📜N-(2,5-二乙氧基-4-硝基苯基)苯甲酰胺置于tin(II) Chloride Dihdyrate体系中,用 乙酸乙酯 用作溶剂,以80 %的收率获得固蓝 Bb
参考文献:一种n-(4-氨基-2,5-二乙氧基苯基)苯甲酰胺的合成方法
标题:一种n-(4-氨基-2,5-二乙氧基苯基)苯甲酰胺的合成方法
摘要:本发明属于有机合成技术领域,具体涉及一种固蓝bb的合成方法.该方法包括以下步骤;(1)将1,4‑二乙氧基苯进行溴代反应得到1,4‑二溴‑2,5‑二乙氧基苯;(2)将1,4‑二溴‑2,5‑二乙氧基苯和苯甲酰胺反应得到n‑(4‑溴‑2,5‑二乙氧基苯基)苯甲酰胺;(3)将n‑(4‑溴‑2,5‑二乙氧基苯基)苯甲酰胺和三氟乙酰胺反应制得n‑(2,5‑二乙氧基‑4‑(2,2,2‑三氟乙酰氨基)苯基)苯甲酰胺;(4)将n‑(2,5‑二乙氧基‑4‑(2,2,2‑三氟乙酰氨基)苯基)苯甲酰胺进行水解得到固蓝bb).该方法具有反应步骤短,反应条件温和,符合绿色安全的发展趋势.

专利信息

专利号:US-5876962-A
优先权日:1987-08-12
标题:Expression vectors for the synthesis of proteins and plasmid replicons and sequence cassettes for use in constructing such vectors
发明人：BISHOP DAVID H L; EMERY VINCENT CLIVE
权利人:NATURAL ENVIRONMENT RES
摘要:Expression vectors for the expression of proteins, particularly eukaryotic proteins are provided which are based on novel plasmid replicons. Sequence cassettes useful in constructing such vectors are also disclosed. The expression vectors according to the invention are useful for expressing selected proteins in insects and insect cells. Specifically, the plasmid replicons comprise double-stranded DNA having (a) one or more sequences allowing the replicon to be reproduced in a bacterial host, (b) first and second sequences which are adapted to permit an intervening sequence located between said first and second sequences to be introduced into an expression vector, and (c) an intervening sequence located between said first and second sequences, and are characterised in that the intervening sequence comprises first and second polypeptide expression sequences (PESs) wherein each PES includes (i) a transcriptional promotor (ii) a unique restriction site for introduction of a gene which is native or foreign to the expression vector and (iii) a transcriptional termination site.

专利号:EP-0327626-B1
优先权日:1987-08-12
标 题:Expression vectors for the synthesis of proteins and plasmid replicons and sequence cassettes for use in constructing such vectors
摘要:Expression vectors for the expression of proteins, particularly eukaryotic proteins are provided which are based on novel plasmid replicons. Sequence cassettes useful in constructing such vectors are also disclosed. The expression vectors according to the invention are useful for expressing selected proteins in insects and insect cells. Specifically, the plasmid replicons comprise double-stranded DNA having (a) one or more sequences allowing the replicon to be reproduced in a bacterial host, (b) first and second sequences which are adapted to permit an intervening sequence located between said first and second sequences to be introduced into an expression vector, and (c) an intervening sequence located between said first and second sequences, and are characterised in that the intervening sequence comprises first and second polypeptide expression sequences (PESs) wherein each PES includes (i) a transcriptional promotor (ii) a unique restriction site for introduction of a gene which is native or foreign to the expression vector and (iii) a transcriptional termination site.

专利号:US-4719053-A
优先权日:1980-08-01
标题 :Beta-chloroethylsulfonylmethyl-benzoic halides as intermediates
发明人：SCHLAEFER LUDWIG; HAEHNLE REINHARD
权利人:HOECHST AG
摘要:New beta -chloroethylsuflonylmethyl-benzoic acid halides which can serve as fibre-reactive anchors for thesynthesis of novel organic, water-soluble compounds, preferably dyestuffs, having fibre-reactive and fibre-finishing properties, such as preferably dyestuff properties, and containing, as a fibre-reactive group, one or two beta -chloroethylsufonylmethylbenzoic acid amide groups. For the synthesis of these novel fibre-finishing compounds, said new beta -chloroethylsulfonylmethyl-benzoic acid halide compounds are reacted with an organic, water-soluble compound having fibre-finishing properties and continuing one or two amino groups. Also precursors of the fibre-finishing, fibre-reactive compounds, containing said beta -chloroethylsulfonylmethyl-benzxoic acid amid grouping, can be employed for their synthesis. The novel fibre-finishing compounds can be applied onto suitable fibre materials, such as especially cellulose fibre material and natural or synthetic polyamide fibre materials, and fixed on these fibre materials in a manner similar to application and fixation methods usual in the technique for fibre-reactive compounds. The fibre-finished material, such as dyed material, shows very good wet fastnesses.

专利号:US-4035350-A
优先权日:1975-01-30
标 题:Process for the preparation of water-soluble azo dyestuffs by reacting an aromatic amine and a coupling component with alkali metal nitrite or alkyl nitrite in the absence of acid
发明人：LANDLER JOSEF; WORFEL ERHARD
权利人:HOECHST AG
摘要:A new and very advantageous Process had been found for the preparation of azo dyestuffs by diazotation and coupling in which the synthesis is carried out without the hitherto usual addition of an acid, with the proviso that at least one of the diazo and coupling components contains at least one acid group. Besides the saving of reaction material and subsequently of alkali for neutralization of the reaction medium and isolation of the dyestuff, highly concentrated solutions of the dyestuff and salt-free or practically salt-free dyestuffs can be obtained, and waste-water is no longer charged with big amounts of salts.

专利号:WO-8901518-A1
优先权日:1987-08-12
标 题:Expression vectors for the synthesis of proteins and plasmid replicons and sequence cassettes for use in constructing such vectors

专利号:US-4136033-A
优先权日:1969-11-07
标 题:6-hydroxypyridone-2 compounds having a cationic group in the 3-position
发明人：STEINEMANN WILLY
权利人:SANDOZ LTD
摘要:Compounds of the formula ##STR1## wherein K.sup.⊕ is a cationic group, preferably heterocyclic, n R is hydrogen or an organic radical, preferably alkyl, phenyl or acyl, n R 1 is hydrogen, hydrocarbyl, substituted hydrocarbyl, heterocyclyl, substituted heterocyclyl, amino or substituted amino, and n A.sup.⊖ is an anion, n Are useful as intermediates in the synthesis of azo dyes of the formula ##STR2## wherein D is an aromatic carbocyclic or heterocyclic diazo component radical, and n K.sup.⊕, r, r 1 and A.sup.⊖ are as defined above.