CAS: 99-10-5; 3,5-Dihydroxybenzoic Acid

上下游产品

CAS号501-36-0 白藜芦醇 | CAS号1132-21-4 3,5-二甲氧基苯甲酸 | CAS号108-24-7 乙酸酐 | CAS号108-46-3 间苯二酚 | CAS号618-58-6 3,5-二溴苯甲酸 | CAS号16110-99-9 3,6-Dichloropht... | CAS号121-48-2 3,5-二硫苯甲酸 | CAS号65-85-0 苯甲酸 | CAS号82850-46-2 Lepr°Cybosid | CAS号82850-45-1 12-hydroxy-3-me... | CAS号111682-05-4 methyl 3,5-bis(... | CAS号110361-76-7 methyl 2,3,5-tr... | CAS号2150-41-6 2,4-二甲氧基苯甲酸甲酯 | CAS号606-45-1 2-甲氧基苯甲酸甲酯 | CAS号5368-81-0 3-甲氧基苯甲酸甲酯 | CAS号121-98-2 茴香酸甲酯 | CAS号2150-38-1 3,4-二甲氧基苯甲酸甲酯 | CAS号1916-07-0 3,4,5-三甲氧基苯甲酸甲酯 | CAS号2150-42-7 2,3-二甲氧基苯甲酸甲酯 | CAS号2150-40-5 2,5-二甲氧基苯甲酸甲酯

苯置于potassium Carbonate,五氧化二氮体系中,用 二氯甲烷,N,N-二甲基甲酰胺 作为反应溶剂,70.0~100.0 °C,110.0 Mpa 条件下,反应 10.33H,反应生成 3,5-二羟基苯甲酸
参考文献:一种3,5-二甲氧基苯甲酸乙酯的合成方法
标题:一种3,5-二甲氧基苯甲酸乙酯的合成方法
摘要:本发明公开了一种3,5-二甲氧基苯甲酸乙酯的合成方法,属于化学合成领域.本发明先用苯在特定的条件下生产间苯二酚,在和无水碳酸钾和二氧化碳在二甲基甲酰胺作为反应溶剂下,通过除杂,脱色,调节ph值,冷却结晶最终得到3,5-二羟基苯甲酸,再和硫酸二甲酯搅拌的条件下混合,向其中滴加氢氧化钠水溶液进行回流,回流后调节ph值,冷却至0oc减压过滤,洗涤,干燥得到3,5-二甲氧基苯甲酸,最后和无水乙醇在浓硫酸的条件下进行酯化,最终得3,5-二甲氧基苯甲酸乙酯.

专利信息

专利号:US-12264143-B2
优先权日:2020-12-17
标 题:Synthesis of cannabinoids and cannabinoid precursors, and related compounds, formulations, and methods of use
发明人：SAMMIS GLENN M; ROGGEN MARKUS
权利人:NALU BIO INC
摘要:Methods are provided for the synthesis of cannabinoids, including cannabidiol (CBD), cannabinol (CBN), cannabichromene (CBC), cannabidiolic acid (CBDA), cannabigerol (CBG), cannabigerolic acid (CBGA), cannabidivarin (CBDV), cannabidibutol (CBD-C4), dihydrocannabidiol (DCBD), tetrahydrocannabivarin (THCV), analogs thereof, and precursors to the foregoing. One method employs phloroglucinol or a phloroglucinol analog as a starting material. The syntheses are stereospecific, efficient, selective, and cost-effective, with little or no potential for generation of THC ((−)-trans-Δ9-tetrahydro-cannabinol) or any other psychoactive side product. Telescoped syntheses are also provided, as are new cannabinoids, pharmaceutical formulations, and methods of use.

专利号:US-4515920-A
优先权日:1984-04-30
标题 :Synthesis of peptides and proteins
发明人：ERICKSON BRUCE W
权利人:UNIV ROCKEFELLER
摘要:Solid phase synthesis of peptides and proteins have been improved by the use of a trifunctional segment, one functional group of which is bound to a solid support, the other two functional groups being available as substrates upon which identical proteins are synthesized.

专利号:US-11807884-B2
优先权日:2017-12-09
标题:Generation-dependent supramolecular assemblies of protein-dendron conjugates
发明人：BRITTO Sandanaraj Selvaraj; BHANDARI PAVANKUMAR JANARDHAN; REDDY Mullapudi Mohan
权利人:INDIAN INSTITUTE OF SCIENCE EDUCATION AND RES
摘要:The present invention discloses monodisperse protein-dendron conjugates that self-assemble to generation-dependent supramolecular protein assemblies of different size and surface charges. The invention further provides a process for synthesis of protein-dendron conjugates containing hydrophobic dendron of different generations.

专利号:US-2002192767-A1
优先权日:1999-10-13
标题 :Biosynthesis of polyketide synthase substrates
发明人：KHOSLA CHAITAN; PFEIFER BLAINE
摘要:The use of enzymes which catalyze the production of starter and extender units for polyketides is described. In addition, modified loading modules are described, which can accept a variety of starting units such as substituted benzoates, and which can be used to generate substituted derivatives of natural products. These enzymes may be used to enhance the yield of polyketides that are natively produced or polyketides that are rationally designed. By using these techniques, the synthesis of a complete polyketide has been achieved in E. coli . Production can be enhanced in microbial organisms of polyketides and other secondary metabolites by delaying production until after exponential phase and by maintaining relatively constant nutrient levels in the medium. In addition, polyketide production can be enhanced by providing an expression system for a thioesterase II. Thus, by modifying the host organism and changing the culture conditions, synthesis of a secondary metabolite can be enhanced. The present invention also results in a host organism with desirable characteristics to be used in the production of such polyketides and to assess the results of gene shuffling.

专利号:WO-02068613-A1
优先权日:2001-02-28
标题 :Biosynthesis of polyketide synthase substrates
发明人：KHOSLA CHAITAN; PFEIFER BLAINE
权利人:UNIV LELAND STANFORD JUNIOR; KHOSLA CHAITAN; PFEIFER BLAINE
摘要:The use of enzymes which catalyze the production of starter and extender units for polyketides is described. In addition, modified loading modules are described, which can accept a variety of starting units such as substituted benzoates, and which can be used to generate substituted derivatives of natural products. These enzymes may be used to enhance the yield of polyketides that are natively produced or polyketides that are rationally designed. By using these techniques, the synthesis of a complete polyketide has been achieved in E. coli. Production can be enhanced in microbial organisms of polyketides and other secondary metabolites by delaying production until after exponential phase and by maintaining relatively constant nutrient levels in the medium. In addition, polyketide production can be enhanced by providing an expression system for a thioesterase II. Thus, by modifying the host organism and changing the culture conditions, synthesis of a secondary metabolite can be enhanced. The present invention also results in a host organism with desirable characteristics to be used in the production of such polyketides and to assess the results of gene shuffling.

专利号:US-6180830-B1
优先权日:1995-11-08
标题 :Method for preparing a bimetallic ruthenium/tin catalyst and a process for the synthesis of aldehydes
发明人：JACQUOT ROLAND
权利人:RHODIA CHIMIE SA
摘要:The present invention relates to a new process for the preparation of a bimetallic ruthenium/tin catalyst. The process for the preparation of a bimetallic ruthenium/tin catalyst according to the invention is characterised by the fact that it consists in carrying out the reduction of a ruthenium complex having an electrovalency of -4 and a coordination number of 6, the ligands being either a halogen atom or an anion or a tin halide. The catalyst is further employed for the preparation of aldehydes by reduction, in the vapor phase, of carboxylic acids, esters and anhydrides.