CAS: 5332-96-7; 4-Nitrophenylacetone

上下游产品

diazomethane p-nitrophenylacetaldehyde 4-nitrobenzaldehdye 2-acetoxy-1-(4-nitro-phenyl)-propene (p-nitrophenyl)acetone ethylene glycol ketal 1-(4-Nitrophenyl)-2-propanol 4-(2-oxopropyl)benzonitrile 3-(4'-nitrophenyl)butan-2-one

📜2-(4-硝基苯基)乙酰氯置于硫酸,水,苯体系中,化学反应生成 4-硝基苯丙酮
参考文献:20.萘系列的合成.第一部分:1-3-二羟基萘
标题:20.萘系列的合成.第一部分:1-3-二羟基萘
摘要:
DOI:10.1039/jr9440000053

专利信息

专利号:US-5981240-A
优先权日:1996-11-27
标题:Enzyme-catalyzed synthesis of macromolecules in organic solvents
发明人：AKKARA JOSEPH A; BRUNO FERDINANDO F
权利人:US ARMY
摘要:A method is described for a simple, fast and efficient synthesis of homopolymers and copolymers by the enzymatic ring opening polymerization of lactones and lactides. The enzyme used is an ion paired protease. The advantage of this enzymatic system is in using small amount of enzyme per monomer and lower reaction time. Homopolymers and copolymers are synthesized with molecular weights between 1000 and 4600 daltons, and dispersity as low as 1.1. The monomer conversion after 4 days, for reactions catalyzed by protease S, has reached 100%. Different initiators are used to control the rate and degree of polymerization. Synthesis of block copolymers with defined block size and crystallinity are described in this invention. These biodegradable and bioerodable polyesters and copolyesters with controlled molecular weight, dispersity and crystallinity have applications in medical, drug, cosmetic and food industries.

专利号:EP-1075534-B8
优先权日:1998-03-11
标 题 :Improvements in the enzymatic synthesis of chiral amines
发明人：WU WEI; BHATIA MOHIT B; LEWIS CRAIG M; LANG WEI; WANG ALICE; MATCHAM GEORGE W
权利人:CELGRO
摘要:2-Aminopropane is used as the amine donor in the stereoselective synthesis of a chiral amine from a ketone with a transaminase. In a typical embodiment, (S)-1-methoxy-2-aminopropane is prepared by bringing methoxyacetone into contact with a transaminase in the presence of 2-aminopropane as an amine donor until a substantial amount of methoxyacetone is converted to (S)-1-methoxy-2-aminopropane and 2-aminopropane is converted to acetone. In a second embodiment, L-alanine is prepared by bringing pyruvic acid into contact with a transaminase in the presence of 2-aminopropane as an amine donor.

专利号:US-11447742-B2
优先权日:2016-02-09
标题 :Compositions and methods for activation and overexpression of secondary metabolites in microorganisms
发明人：HAMILL DAKOTA BENJAMIN; COTTER JAKE J
权利人:PROSPECTIVE RES INC
摘要:Methods and compositions herein provide non-naturally occurring γ-butyrolactones (GBLs) in racemic mixtures that increase efficiency and effectiveness of screening for production of antibiotics, and enhance yields and express silent pathways. Non-naturally occurring GBLs were synthesized and found to stimulate antibiotic production in several different streptomycete strains. Antibiotic production by Streptomyces coelicolor was induced by a racemic mixture of non-cognate stereoisomers of VB-D, seven of which are non-naturally occurring. Further, novel A-factor-type GBL analogs stimulated antibiotic production in S. coelicolor . Synthesis in response to the treatment with the non-cognates GBL was observed for known compounds including undecylprodigiosin, desferrioxamine and streptorubin B, as was synthesis of a compound of unknown structure. A group of 37 additional microbial strains was screened by principal component analysis to determine optimal concentrations of each of a panel of four non-cognate synthetic GBLs for addition to cultures with optimal stimulation of secondary metabolites, and large scale fermentations were analyzed and product enhancement by the GBLs was observed.

专利号:US-2014199585-A1
优先权日:2013-01-17
标 题 :Low Symmetry Molecules And Phosphonium Salts, Methods Of Making And Devices Formed There From
发明人：RUPERT BENJAMIN L; BEER LEANNE
权利人:ESIONIC ES INC
摘要:Synthesis of molecules and salts is disclosed having low average symmetry and their use in many applications, including but not limited to: as electrolytes in electronic devices such as memory devices including static, permanent and dynamic random access memory, as electrolytes in energy storage devices such as batteries, electrochemical double layer capacitors (EDLCs) or supercapacitors or ultracapacitors, electrolytic capacitors, as electrolytes in dye-sensitized solar cells (DSSCs), as electrolytes in fuel cells, as a heat transfer medium, high temperature reaction and/or extraction media, among other applications. In particular, synthesis methods and processes to form molecules and salts having low average symmetry using mixed Grignard reagents are disclosed.

专利号:US-6413669-B1
优先权日:1999-06-03
标题 :Melt impregnation of mixed metal oxide
发明人：TAKEUCHI ESTHER S; LEISING RANDOLPH A
权利人:GREATBATCH W LTD
摘要:The present invention is directed to a process for preparing a cathode active material consisting of a single phase of mixed metal oxide, such as a single phase silver vanadium oxide. The synthesis technique involves first heating the starting materials to melt a decomposable starting constituent. This first heating temperature is held for a period of time sufficient to enable the decomposable starting constituent to melt and completely flow throughout and within the other starting materials. Then, the thusly produced melt impregnated reaction admixture is preferably ground to ensure complete homogeneity of the starting materials, followed by heating to the decomposition temperature of the decomposable starting constituent. To finish the synthesis, the decomposed admixture is heated to an elevated temperature above the decomposition temperature to provide the single phase mixed metal oxide.

专利号:US-7298541-B2
优先权日:2002-06-25
标 题 :Green electrochromic (EC) material and device
发明人：LIU LU; XU CHUNYE; TAYA MINORU
权利人:UNIV WASHINGTON
摘要:Three green EC materials based on thiophene, and a green EC material based on pyrazine are disclosed. A first thiophene derivative (2,3-Di-thiophen-2-yl-thieno[3,4-b]pyrazine), which was previously investigated as a nonlinear optical material, is here disclosed for its use as an EC material, and for its incorporation into an EC device. Synthesis of two new thiophene derivatives (2,5-di(thien-2-yl)-3,4-di(2,2,2-trifluoro-ethoxy)-thiophene and 2,5-(2,3-dihydro-thieno[3,4-b][1,4]dioxin-5-yl)-3,4-di(2,2,2-trifluoro-ethoxy)-thiophene), and a new pyrazine derivative (2,3-dibenzyl-5,7-di(thien-2-yl)thieno[3,4-b]pyrazine) are also disclosed, since these materials are all able to selectively change to a green color state, and can be polymerized to achieve a green EC polymer.