CAS: 19735-89-8; 5-Methyl-2-Phenyl-1,2-Dihydro-3H-Pyrazol-3-One

相似化合物

277299-70-4 35496-20-9 35496-21-0

上下游产品

CAS号141-97-9 乙酰乙酸乙酯 | CAS号100-63-0 苯肼 | CAS号67790-05-0 N"-苯基-3-(2-苯基肼基)丁酰肼 | CAS号674-82-8 双乙烯酮 | CAS号18913-35-4 2,3-二烯酸甲酯 | CAS号1016-41-7 5-ethoxy-3-meth... | CAS号105-45-3 乙酰乙酸甲酯 | CAS号6078-46-2 N-fenilhidrazon... | CAS号35467-82-4 ethyl 3-(phenyl... | CAS号124559-22-4 3-phenylhydrazo... | CAS号4551-69-3 4-苯甲酰基-3-甲基-1-苯... | CAS号60-80-0 安替比林 | CAS号27349-35-5 5-methoxy-3-met... | CAS号7713-77-1 3,4-dimethyl-1-... | CAS号1456-89-9 2-Phenyl-4-[[4-... | CAS号14488-49-4 Dimethylamine p... | CAS号112472-57-8 2,6-diphenyl-4-... | CAS号947-95-5 5-氯-3-甲基-1-苯基-1... | CAS号41327-15-5 5-溴-3-甲基-1-苯基吡唑 | CAS号23901-60-2 3H-Pyrazol-3-on...

📜N-苯基甲酰胺置于1,4-二氧六环,盐酸,羟胺,Sodium Carbonate体系中,化学反应生成5-甲基-2-苯基-1,2-二氢吡唑-3-酮
参考文献:Losco,Gazzetta Chimica Italiana,1939,Vol. 69,P. 639,645
标题:Losco,Gazzetta Chimica Italiana,1939,Vol. 69,P. 639,645

专利信息

专利号:US-6306179-B1
优先权日:1997-10-22
标题:Method for the synthesis of 2-hydroxyalkyl-para-phenylenediamines, new 2-hydroxyalkyl-para-phenylenediamines, their use for oxidation dyeing, dyeing compositions and methods of dyeing
发明人：GENET ALAIN; LAGRANGE ALAIN
权利人:OREAL
摘要:The present invention relates to a new method for the synthesis of 2-hydroxyalkyl-para-phenylenediamines which are substituted or unsubstituted at the 5-position of the benzene ring, new 2-hydroxyalkyl-para-phenylenediamines which are substituted or unsubstituted at the 5-position of the benzene ring, their use for the oxidation dyeing of keratinous fibers, the dyeing compositions containing them, as well as the methods of dyeing using them.

专利号:US-4686285-A
优先权日:1984-02-10
标题:Basic azo and non-azo compounds having one or two disubstituted 1,3,5-triazine rings each of which is linked through a bridging radical to the 1-position of a pyrazole ring
发明人：PEDRAZZI REINHARD
权利人:SANDOZ LTD
摘要:(i) Metal-free compounds of the formula ##STR1## (ii) tautomers thereof, (iii) 1:1 and 1:2 metal complexes of (i) and (ii), n (iv) salts of (i), (ii), and (iii), and n (v) mixtures of (i), (ii), (iii), and (iv), n wherein the symbols are as defined in the Specification, are useful as dyes for, for example, polymers and copolymers of acrylonitrile, polyesters modified to contain acid groups, polyamides such as wool, leather, cotton, bast fibers such as hemp, flax, sisal jute, coir and straw, regenerated cellulose, glass fibers and paper (those wherein R o is other than hydrogen) or as intermediates for the synthesis of dyes.

专利号:US-2005027120-A1
优先权日:2003-06-02
标 题 :Method for the synthesis of amides and related products from esters or ester-like compounds
发明人：GOJON-ZORRILLA GABRIEL
权利人:REACTIMEX S A DE C V
摘要:A versatile, eco-friendly, and efficient method for the convenient conversion of esters and ester-like compounds into amides, peptides, carbamates, ureas, oxamides, oxamates, hydrazides, oxazolidinones, pyrazolones, oxazolidinediones, barbituric acids, and other molecules containing one or more OCN moieties in the presence of a diol or polyol is disclosed.

专利号:US-4005067-A
优先权日:1970-10-28
标题 :Process for the synthesis of nitrite ion-containing 1:1 complexes of cobalt and metallizable monoazo or azomethine compounds and such complexes
发明人：DORE JACKY
权利人:SANDOZ LTD
摘要:By metallization of metallizable monoazo or azomethine dyes with cobalt-donating compounds in the presence of a nitrite, especially NaNO 2 , 1:1 cobalt complexes containing a nitrite ion are obtained in a high degree of metallization which can be reacted with metallizable monoazo or azomethine dyes to give very homogeneous 2:1 cobalt complexes in a high degree of purity. This is particularly advantageous when asymmetrical 2:1 cobalt complexes are to be prepared. The process is particularly useful for the preparation of nitrite ion-containing 1:1 complexes of cobalt and a monoazo compound of the formula ##STR1## wherein X is --OH or --NHR, n wherein R is hydrogen or a substituted or unsubstituted alkyl, cycloalkyl, phenyl or naphthyl group, n Ring A is further unsubstituted or further substituted by at least one halo, nitro or optionally substituted alkyl, alkoxy or sulfamoyl substituent, and n The naphthalene ring is further unsubstituted or further substituted by at least one hydroxy, sulfamoyl or acylamino substituent.

专利号:US-2017299530-A1
优先权日:2013-12-12
标题 :Compounds and methods for analysis and synthesis of saccharide compounds, and method for quantitating saccharide
发明人：YANG WEN-BIN
权利人:ACADEMIA SINICA
摘要:Provided is a method for quantitating a saccharide in a liquid sample. The method comprises incubating the liquid sample with 2,3-naphthalenediamine in the presence of iodine to allow a naphthimidazole group to be linked to the saccharide to obtain a first mixture; obtaining an 1 H-NMR spectrum of the first mixture; and comparing, in said 1 H-NMR spectrum, the intensity or integral of a proton signal corresponding to the saccharide to the intensity or integral of a proton signal corresponding to an internal standard present in the first mixture.

专利号:WO-2022223696-A1
优先权日:2021-04-22
标 题 :Process for synthesis of n-alkyl-n-phenyl hydrazine
发明人：ENDRES ANDREAS; NANDURKAR NITIN SUBHASH; KATE KIRAN; SATHE SHANTANU SHRIKANT
权利人:COLORANTS INT LTD
摘要:The invention provides a process for synthesizing N-alkyl-N-phenyl hydrazine which is devoid of any organic solvents and can be carried out at lower temperatures. The process is environmental-friendly and gives better yield and high purity of the N-alkyl-N-phenyl hydrazine.