CAS: 490-78-8; 1-(2,5-Dihydroxyphenyl)Ethanone

上下游产品

CAS号1205-91-0 对二乙酰氧基苯 | CAS号1201-38-3 2,5-二甲氧基苯乙酮 | CAS号64-19-7 冰醋酸 | CAS号123-31-9 对苯二酚 | CAS号127-17-3 丙酮酸 | CAS号106-51-4 苯醌 | CAS号3233-32-7 4-乙酰氧基苯酚 | CAS号874-23-7 2-乙酰基环己酮 | CAS号75-36-5 乙酰氯 | CAS号1125-55-9 2-Acetyl-1,4-be... | CAS号113495-13-9 phenyl-bis[3-(6... | CAS号4250-77-5 6-羟基黄烷酮 | CAS号132361-70-7 3-benzylidene-2... | CAS号533-73-3 1,2,4-苯三酚 | CAS号39679-60-2 硝基染料木素 | CAS号140660-42-0 1-(2,5-dihydrox... | CAS号42059-79-0 6-甲氧基色酮-3-甲醛 | CAS号204703-66-2 3-(4-chlorophen... | CAS号19312-13-1 1-(2,5-dihydrox...

2-乙酰基环己酮置于(Z/e)-2-Bromo-2-[4-Oxothiazolidin-2-Ylidene]-N-Phenylacetamide,二甲基亚砜体系中,化学反应 3.0H,以19%的收率获得产物2,5-二羟基苯乙酮
参考文献:Catalytic Oxidations Of Enolizable Ketones Using 2-Alkylidene-4-Oxothiazolidine Vinyl Bromide
标题:Catalytic Oxidations Of Enolizable Ketones Using 2-Alkylidene-4-Oxothiazolidine Vinyl Bromide
摘要:Direct Oxidation Of Enolizable Ketones To Alpha-Hydroxy Derivatives,Vicinal Dicarbonyls Or Tricarbonyl Compounds Has Been Achieved By A Catalytic Amount Of 2-Alkylidene-4-Oxothiazolidine Vinyl Bromide In Dmso As A Solvent. The Yields Range From Moderate To Good. (C) 2011 Elsevier Ltd. All Rights Reserved.
DOI:10.1016/j.Tet.2011.08.022

专利信息

专利号:US-2006128930-A1
优先权日:2004-12-03
标题 :Synthesis of sterically hindered phenol based macromolecular antioxidants
发明人：DHAWAN ASHISH; CHOLLI ASHOK L
权利人:DHAWAN ASHISH; CHOLLI ASHOK L
摘要:Disclosed is a method for the synthesis of sterically hindered polymeric antioxidants based on phenol type antioxidant monomers. The method includes polymerizing and alkylating a phenol containing monomer represented by the following structural formula: n n nto produce a sterically hindered polymeric macromolecular antioxidant. X, R 10 and q are as defined herein. The disclosed method is a simple, direct and economical process for the synthesis of sterically hindered polymeric macromolecular antioxidants.

专利号:US-10188136-B2
优先权日:2016-02-16
标题:Hydrophobin mimics: process for preparation thereof
发明人：BRITTO Sandanaraj Selvaraj; REDDY Mullapudi Mohan; BHANDARI PAVANKUMAR JANARDHAN; RAO KASULADEVU JAGANNADHA
权利人:INDIAN INSTITUTE OF SCIENCE EDUCATION AND RES
摘要:The present invention discloses hydrophobin mimics of formula (I) comprising a protein head group, hydrophilic linker and hydrophobic tail and to a process for synthesis of library of hydrophobin mimics thereof. The hydrophobin mimics of the present invention self-assemble to form protein nanoparticles/nanocontainer either alone or in a specified chemical environment. The hydrophobin mimics (I) of the present invention find application in area of bio-nanotechnology.

专利号:US-7598403-B2
优先权日:2003-05-16
标 题 :Synthesis of chromanones
发明人：SALVATORE BRIAN A; SOLIS FERDINAND C
权利人:UNIV SOUTH CAROLINA RES FOUND
摘要:Processes for the preparation of biologically active chromanones are disclosed, including processes for the preparation of intermediates useful in the preparation of the biologically active chromanones. The chromanones and the intermediates disclosed herein may be useful for a variety of therapies, including the treatment of various cancers and the treatment of inflammation and inflammation related disorders.

专利号:US-3953604-A
优先权日:1972-01-14
标 题:1-(2-Substituted-chromonyloxy)-2-hydroxy-3-(substituted phenoxy)propanes
发明人：WARREN BRIAN THOMAS; SPICER JOHN WILLIAM
权利人:MILES LAB
摘要:Definitions: in the following Formulae I, II and IV, R 1 represents hydrogen, alkyl of 1 to 4 carbon atoms, or a nontoxic cation, while each of R 2 , R 3 , R 4 , R 5 , and R 6 symbolizes hydrogen, alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms, carboxy, carbalkoxy of 1 to 4 carbon atoms, trihalomethyl, halogen, nitro or cyano. n Certain 1-(2-substituted-chromon-yloxy)-2-hydroxy-3-(substituted-phenoxy)propanes (Formula I), ##SPC1## n can be synthesized from intermediate bis-(substituted-phenoxy)propanes (Formula II), ##SPC2## n by condensation with diethyl oxalate in the presence of sodium ethoxide followed by cyclization with a mixture of glacial acetic acid and concentrated sulfuric or a mixture of concentrated hydrochloric acid and a lower alcohol containing up to 4 carbon atoms. n The bis-(substituted-phenoxy)propane intermediates (Formula II) are prepared by reacting a dihydroxyacetophenone (Formula III), ##SPC3## n with a (substituted-phenyl)glycidyl ether (Formula IV), ##SPC4## n in an organic solvent in the presence of a catalyst. n The 1-(2-substituted-chromon-yloxy)-2-hydroxy-3-(substituted-phenoxy)propanes (Formula I) are useful in the treatment of allergic conditions in mammals. The bis-(substituted-phenoxy)propanes (Formula II) are useful as intermediates in the synthesis of the latter compounds. Methods of preparing compounds having Formulae I and II are described. Methods of treating allergic conditions in mammals utilizing compounds of Formula I are also disclosed.

专利号:US-3899513-A
优先权日:1972-01-14
标 题 :1-(2-substituted-chromonyloxy)-2-hydroxy-3-(substituted-phenoxy)propanes
发明人：WARREN BRIAN THOMAS; SPICER JOHN WILLIAM
权利人:MILES LAB
摘要:Definitions: in the following Formulae I, II and IV, R1 represents hydrogen, alkyl of 1 to 4 carbon atoms, or a nontoxic cation, while each of R2, R3, R4, R5, and R6 symbolizes hydrogen, alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms, carboxy, carbalkoxy of 1 to 4 carbon atoms, trihalomethyl, halogen, nitro or cyano. Certain 1-(2-substituted-chromon-yloxy)-2-hydroxy-3(substituted-phenoxy)propanes (Formula I), can be synthesized from intermediate bis-(substitutedphenoxy)propanes (Formula II), by condensation with diethyl oxalate in the presence of sodium ethoxide followed by cyclization with a mixture of glacial acetic acid and concentrated sulfuric or a mixture of concentrated hydrochloric acid and a lower alcohol containing up to 4 carbon atoms. The bis-(substituted-phenoxy)propane intermediates (Formula II) are prepared by reacting a dihydroxyacetophenone (Formula III), with a (substituted-phenyl)glycidyl ether (Formula IV), in an organic solvent in the presence of a catalyst. The 1-(2-substituted-chromon-yloxy)-2-hydroxy-3-(substitutedphenoxy)propanes (Formula I) are useful in the treatment of allergic conditions in mammals. The bis-(substitutedphenoxy)propanes (Formula II) are useful as intermediates in the synthesis of the latter compounds. Methods of preparing compounds having Formulae I and II are described. Methods of treating allergic conditions in mammals utilizing compounds of Formula I are also disclosed.

专利号:US-2007203214-A1
优先权日:2003-05-16
标 题 :Synthesis Of Chromanones