CAS: 100-25-4; 1,4-Dinitrobenzene

上下游产品

peracetic acid N-(4-Nitrophenyl)acetamide p-nitrobenzene iodide p-dinitrosobenzene 4-nitro-aniline bis(4-nitrophenyl)diazene para-methoxynitrobenzene 4,4'-azoxy anisole

📜4-硝基偶氮苯甲苯-4-磺酸酯置于potassium Nitrite体系中,用 水 用作溶剂,化学反应 0.5H,以74%的收率获得对二硝基苯
参考文献:异常稳定,通用且纯净的甲苯二磺酸甲苯磺酸铵盐:其制备,结构和合成适用性.
标题:异常稳定,通用且纯净的甲苯二磺酸甲苯磺酸铵盐:其制备,结构和合成适用性.
摘要:通过在对甲苯磺酸存在下使用聚合物负载的重氮化剂,已经开发出一种新的,简单而有效的重氮化多种芳基胺的方法.通过这种方法可以容易地制备具有不同稳定性的各种纯的芳基氮杂甲苯磺酸盐.结果,这些盐对于随后的转化,例如卤化和heck型反应,是有用且通用的底物.还初步讨论了甲苯磺酸壬二唑鎓盐的异常稳定性及其x射线结构.
Doi:10.1021/ol8013528

专利信息

专利号:US-2024368099-A1
优先权日:2022-01-18
标 题:Methods for the synthesis of di(hydroxymethyl)tetrahydrofuran and its application in polyesters and polyurethanes
发明人：SPIEGELBERG BRIAN; BRANDT ADRIAN; BECK HORST; KUX ALEXANDER; TIN SERGEY; DE VRIES JOHANNES GERARDUS
权利人:HENKEL AG & CO KGAA
摘要:The present invention relates to the synthesis of di(hydroxymethyl)tetrahydrofuran (DHMTHF) and the preparation of trans-enriched mixtures of DHMTHF. The invention further refers to polyester polyols which are obtained by reaction of cis/trans DHMTHF mixtures with a dicarboxylic acid. The invention further relates to polyurethanes and compositions containing a polyester polyol comprising DHMTHF, in particular to such polyurethane-containing (adhesive) compositions.

专利号:US-5648571-A
优先权日:1994-02-04
标 题:Methods for the synthesis of chemical compounds
发明人：ROGERS CHARLES J; KORNEL ALFRED
摘要:Methods for synthesis of chemical compounds by catalytic transfer hydrogenation comprise forming a mixture of a starting material, a hydrogen donor material and a catalyst. The catalyst is selected from a catalytic form of carbon, a polyethylene glycol phase transfer agent, and mixtures thereof. The mixture is heated at a temperature of from 30° to 400° C. in the presence of at least one alkali or alkaline earth metal compound to cause reduction of the starting material by catalytic transfer hydrogenation and form the desired chemical compound product.

专利号:US-8901304-B1
优先权日:2013-11-05
标题:Benzo[D]imidazole derivatives of piperidine and piperazine
发明人：ULLAH NISAR
权利人:UNIV KING FAHD PET & MINERALS; KING ABDULAZIZ CITY SCI & TECH
摘要:The benzo[d]imidazole derivatives of piperidine and piperazine are 5-piperazinyl and 5-piperadinyl-1H-benzo[d]imidazol-2(3H)-ones that exhibit D 2 and 5-HT 1A receptor binding affinities, making them suitable for use as the active ingredient of pharmaceuticals for the treatment of schizophrenia. The derivatives have the general formula: n nwhere X is carbon or nitrogen and R is a selected biaryl group, or a pharmaceutically acceptable salt thereof. The piperidinyl compounds are prepared by removal of the Boc group from tert-Butyl-4-(2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)piperidine-1-carboxylate. Subsequent reductive amination with a selected biarylaldehyde completes the synthesis of the 5-piperazinyl-1H-benzo[d]imidazol-2(3H)-ones. The piperazinyl compounds are prepared by preparation of the intermediate tert-Butyl 4-(3,4-diaminophenyl)piperazine-1-carboxylate. Removal of the Boc group and subsequent reductive amination with a selected biarylaldehyde completes the synthesis of the 5-piperazinyl-1H-benzo[d]imidazol-2(3H)-ones.

专利号:US-9951095-B2
优先权日:2014-05-16
标 题:Chromium metal organic frameworks and synthesis of metal organic frameworks
发明人：ZHOU HONG-CAI; Liu tian-fu; LIAN XIZHEN; ZOU LANFANG; FENG DAWEI
权利人:TEXAS A & M UNIV SYS
摘要:The present invention relates to monocrystalline metal organic frameworks comprising chromium ions and carboxylate ligands and the use of the same, for example their use for storing a gas. The invention also relates to methods for preparing metal organic frameworks comprising chromium, titanium or iron ions and carboxylate ligands. The methods of the invention allow such metal organic frameworks to be prepared in monocrystalline or polycrystalline forms.

专利号:US-11479466-B2
优先权日:2014-08-08
标题:Methods for synthesis of graphene derivatives and functional materials from asphaltenes
发明人：TANIMOLA OLANREWAJU W
权利人:TANIMOLA OLANREWAJU W
摘要:Embodiments described are directed to methods for the functionalization of asphaltene materials and to compositions made from functionalized asphaltenes. Disclosed is a method for synthesizing graphene derivatives, such as 2D single crystalline carbon allotropes of graphene and functional materials, such as sulfonic acid and its derivatives. Also disclosed is a method for the transformation of asphaltene into a source of graphene derivatives and functional materials, such as, 0D, 1D, 2D and combinations of 0D and 1D by utilizing chemical substitution reaction mechanism, such as, electrophilic aromatic substitution, nucleophilic aromatic substitution and Sandmeyer mechanism. Also disclosed are novel graphene materials comprising: acetylenic linkage and hydrogenated graphene. These novel materials, which may be produced by these methods, include, e.g.: 2D single crystalline carbon allotropes of graphene with asymmetric unit formulas C7H6N2O4, C6H4N2O4, C7H7O3S− H3O+, C7H7O3SH+, and a 2D single crystal with asymmetric unit formula (Na6O16S4)n.

专利号:US-2007004010-A1
优先权日:2002-09-12
标题 :Engineered Enzymes and Their Use for Synthesis of Thioglycosides
发明人：WITHERS STEPHEN G; JAHN MICHAEL
权利人:UNIV BRITISH COLUMBIA
摘要:Mutant glycosidases in which the amino acid in the active site that serves as the acid, base or acid/base-catalyst is converted from a carboxylic acid to some other amino acid (for example to a simple alkyl, as in alanine or glycine) can catalyze the reaction of a thiosugar acceptor and an activated donor to form a thioglycoside. The “thioglycoligasesâ€? represent a novel class of mutant enzymes, and represent a first aspect of the invention. Thioglycoligases can be used in accordance with the method of the invention to couple a thiosugar acceptor and an activated donor to form a thioglycoside. By selection of the donor and acceptor species, as well as the specific enzyme employed, thioglycosides of different structure and stereochemistry can be obtained.