Conversion of hydrocyanated unsaturated carboxylic acid derivatives into aminesThe present invention is directed to glycerol tri-esters containing amine groups and methods of their preparation. The preparation involves hydrogenating nitrile containing glycerol tri-esters obtained by hydrocyanation to produce ...
Domino Transformation of 1,3-Dicarbonyl Compounds: One-Pot Regio-, Chemo- and Stereoselective Access to Valuable ,-Difunctionalized -Ketoesters and Amides... Hadjira,Habib-Zahmani,Salih,... - 《Cheminform》 被引量: 3发表: 2003年 Trimethylsilyl azide-promoted acid-amine coupling: A facile one...
The amine–acid pair depicted was used as an input to combinatorial enumeration, and the number of valid products identified is noted for each pairing. Distributions of common physical properties are shown for each coupling set. Abbreviations are as in Extended Data Fig. 2. Extended Data Table ...
载玻片表面修饰羧基(carboxylic acid);羧基修饰生物芯片 羧酸盐(Carboxylate)官能基团载玻片 该载玻片在PH大于4的缓冲液中带负电荷。在使用EDC/NHS活化后,他们可以与具有伯胺基团(primary amine groups)的生物分子共价结合。这种结合比醛-胺结合(aldehide-amine binging)更* 。聚乙二醇(PEG)是可抵抗非* 性吸附的单...
The α-ω epoxyesters presented serve as a means to introduce carboxylic acid and amine functional groups into poly(lactic acid) polymers via ring-opening copolymerization. 展开 关键词: poly(lactic acid copolymerization α,ω-epoxyesters carboxylic acid amine ...
In general, the intermediate 2 undergoes fragmentation of the N-O bond to generate a carbon-centred radical 3 (R1•) with the extrusion of CO2 and phthalimide anion 4 (Phth-, path a). More electron-withdrawing substituents (R1) with a carboxylic-acid moiety will enhance the leaving-group...
37–88% yield and with up to 91% e.e. These successful examples further underscore the utility of our one-step amino acid synthesis protocol as it enables the expedient conversion of carboxylic acid-containing drugs, drug analogues and natural products to their respective non-racemic α-amino ...
瑞禧-DSPE-PEG (2000) Carboxylic Acid 西安瑞禧生物科技有限公司经营的产品种类包括有:合成磷脂、高分子聚乙二醇衍生物、嵌段共聚物、磁性纳米颗粒、纳米金及纳米金棒、近红外荧光染料、活性荧光染料、荧光标记的葡聚糖BSA和链霉亲和素、蛋白交联剂、小分子PEG衍生物、点击化学产品、树枝状聚合物、环糊精衍生物、大环...
6-(Benzyloxy)-1H-indazol-3-amine 1167056-55-4 5-Chloro-1H-pyrrolo[2,3-c]pyridine-3-carbaldehyde 1167056-35-0 2-(4-Piperidyl)-2-propanol 22990-34-7 5-Fluorobenzo[d]oxazole-2-thiol 13451-78-0 2-Acetylphenylboronic acid pinacol ester 325141-75-1 ...
Nickel complexescatalyze the conversion of acid anhydrides to alkenes (equation256). Interestingly, the corresponding thioanhydride is decarbonylated by (163) with the simultaneous formation oftriphenylphosphinesulphide.183 (256) Stoichiometricdecarbonylationofketeneswas reported with [V(η-C5H5)2], [Ti...