CAS: 7500-53-0; 2,2'-(1,2-Phenylene)Diacetic Acid

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CAS号613-73-0 1,2-苯二乙腈 | CAS号95-47-6 邻二甲苯 | CAS号91-13-4 α,α'-二溴邻二甲苯 | CAS号17532-66-0 1,2-Benzenediac... | CAS号7500-54-1 o-Benzenediacetamide | CAS号855654-81-8 (2-carboxymethy... | CAS号189242-48-6 2-amino-1H-inde... | CAS号35583-15-4 cis-1,2,3,4-tet... | CAS号58891-37-5 2-oxo-indan-1-c... | CAS号2184-00-1 1H-苯并[D] 氮杂卓-2,... | CAS号19109-69-4 methyl 2-[2-(2-... | CAS号130800-04-3 1,2-phenylenebi... | CAS号104620-34-0 2-氧代茚满-1-甲酸甲酯 | CAS号615-13-4 2-茚酮 | CAS号17378-99-3 邻苯二乙醇 | CAS号5368-66-1 1,2,4,5-Tetrahy... | CAS号136863-22-4 2-[2-(2-hydroxy... | CAS号17532-66-0 1,2-Benzenediac... | CAS号17379-00-9 1,2-双(2-溴乙基)苯

邻二甲苯置于盐酸,水,溴体系中,用 乙醇,水 作为反应溶剂,化学反应 2.0H,反应生成 1,2-苯二乙酸
参考文献: Phenylene Oxo-Diester Plasticizers And Methods Of Making[fr] Plastifiants Oxo-Diesters De Phénylène Et Procédés De Fabrication
标题: Phenylene Oxo-Diester Plasticizers And Methods Of Making[fr] Plastifiants Oxo-Diesters De Phénylène Et Procédés De Fabrication
摘要:一种制造非邻苯二甲酸酯,1,2-苯基氧代二酯增塑剂用于聚合物组合物的方法,通过选择性加氢萘形成部分加氢萘,将部分加氢萘氧化成苯基二酸,然后酯化苯基二酸与氧代醇形成1,2-苯基氧代二酯.另外一种制造苯基氧代二酯增塑剂的方法是通过选择性溴化二甲苯形成双溴甲基苯,催化羧酸酯化溴化合物形成苯基二乙酸酯,然后通过酯交换反应形成苯基氧代二酯.

专利信息

专利号:US-3888880-A
优先权日:1973-10-30
标题:Synthesis of diether-aldehydes and diether-alcohols
发明人：SNAPP JR THOMAS C; BLOOD ALDEN E
权利人:EASTMAN KODAK CO
摘要:The present invention describes a process for the production of p-dioxanecarboxyaldehyde and p-dioxanemethanol via the hydroformylation and hydrogenation of p-dioxene. The new compound, p-dioxanecarboxyaldehyde, is an intermediate useful in the synthesis of plasticizers and perfumes. p-Dioxanemethanol is a known chemical useful as a plasticizer, surface active agent and in adhesives and urethanes.

专利号:US-3983177-A
优先权日:1971-06-24
标 题 :Process for the preparation of unsaturated ketones
发明人：GRARD CHARLES
权利人:RHONE POULENC SA
摘要:Ketones, which are intermediates in the synthesis of vitamin A or perfumes, and have the general formula: R2R3 ¦¦ CCH2CR6O (I) ANGLE ANGLE ANGLE ¦ PARALLEL R1--CH2CHCHC-CH2-C-C-R8 n¦¦¦ R4R5R7 wherein R1 is hydrogen or C1-10 hydrocarbon, R2 and R3 are hydrogen or C1-4 alkyl, R4 and R5 are hydrogen or together form a -CH2-CH2-C(CH3)2- group, R6 and R7 are hydrogen or C1-10 hydrocarbon, or together with the carbon atom to which they are joined form a hydrocarbon ring of up to 10 carbons, or ¦ R6-C-C-R8 ¦ PARALLEL R7O forms a hydrocarbon ring of up to 10 carbons joined through R6 and R8 or R7 and R8, R8 is hydrogen or C1-10 hydrocarbon and n is 0-6, are prepared by reacting an unsaturated halide of formula R2R3 ¦¦ CCH2CCH2X (II) ANGLE ANGLE ANGLE ¦ R1--CH2CHCHC n¦¦ R4R5 wherein X is halogen, with an enol ester of formula R6 ANGLE C=C-R8 (III) ¦ R7OOC-R9 wherein R9 is C1-20 hydrocarbon, in the presence of a metal catalyst.

专利号:US-5811499-A
优先权日:1996-08-05
标题:Synthesis of cis-1,4-polybutadiene rubber in presence of cobalt containing catalyst system
发明人：CASTNER KENNETH FLOYD
权利人:GOODYEAR TIRE & RUBBER
摘要:It has been determined that 1,3-butadiene monomer can be polymerized into cis-l,4-polybutadiene rubber utilizing a cobalt-based catalyst system which is comprised of (a) an organocobalt compound, (b) a trialkylaluminum compound and (c) hexafluoro-2-propanol. The use of this catalyst system results in extremely fast rates of polymerization. The molecular weight of the cis-1,4- polybutadiene rubber made utilizing this cobalt-based catalyst system can be regulated by conducting the polymerization in the presence of 1,5-cyclooctadiene. This present invention more specifically discloses a catalyst system which is particularly useful for polymerizing 1,3-butadiene monomer into cis-1,4-polybutadiene, said catalyst system being comprised of (a) an organocobalt compound, (b) a trialkylaluminum compound and (c) hexafluoro-2-propanol. The subject invention further discloses a process for synthesizing cis-1,4-polybutadiene rubber which comprises polymerizing 1,3-butadiene in the presence of (a) an organocobalt compound, (b) a trialkylaluminum compound and (c) hexafluoro-2-propanol.

专利号:US-9549921-B2
优先权日:2013-06-24
标 题:Heterocyclic compounds and methods of use thereof for the treatment of hepatitis C
发明人：HE SHUWEN; LAI ZHONG; DAI XING; XIAO DONG; LONDON CLARE; ZORN NICOLAS; NARGUND RAVI; PALANI ANANDAN; MCCOMAS CASEY C; LI PENG; PENG XUANJIA; SOLL RICHARD
权利人:HE SHUWEN; LAI ZHONG; DAI XING; XIAO DONG; LONDON CLARE; ZORN NICOLAS; NARGUND RAVI; PALANI ANANDAN; MCCOMAS CASEY C; LI PENG; PENG XUANJIA; SOLL RICHARD; MERCK SHARP & DOHME
摘要:The present invention relates to compounds of formula I that are useful as hepatitis C virus (HCV) NS5B polymerase inhibitors, the synthesis of such compounds, and the use of such compounds for inhibiting HCV NS5B polymerase activity, for treating or preventing HCV infections and for inhibiting HCV viral replication and/or viral production in a cell-based system.(I)

专利号:US-5756606-A
优先权日:1997-05-22
标题:Means to control particle size and eliminate fouling in the synthesis of syndiotactic 1,2 - polybutadiene
发明人：WONG TANG HONG
权利人:GOODYEAR TIRE & RUBBER
摘要:Syndiotactic 1,2-polybutadiene is a thermoplastic resin which has double bonds attached in an alternating fashion to its polymeric backbone. Films, fibers and molded articles can be made utilizing syndiotactic 1,2-polybutadiene. It can also be blended into rubbers and cocured therewith. It is generally preferred to synthesize syndiotactic 1,2-polybutadiene in an aqueous medium by suspension or emulsion polymerization. In such aqueous polymerization techniques reactor fouling and particle size control problems are frequently encountered. This invention is based upon the unexpected finding that reactor fouling can be greatly reduced or eliminated and that particle size can be regulated by conducting such aqueous polymerizations in the presence of a controlled amount of dissolved oxygen which is within the range of about 0.01 ppm to about 4 ppm. This invention more specifically discloses a process for preparing syndiotactic 1,2-polybutadiene in an aqueous medium with minimal reactor fouling which comprises polymerizing 1,3-butadiene monomer in the aqueous medium in the presence of (1) a catalyst system which is comprised of (a) transition metal compound, (b) an organoaluminum compound and (c) at least one member selected from the group consisting of carbon disulfide, phenyl isothiocyanate and xanthic acid and (2) from about 0.01 ppm to about 4 ppm of oxygen.\\!

专利号:US-7115540-B2
优先权日:2002-02-13
标题 :Synthesis of aliphatic 1,3-diols utilizing reduced ligand concentration and water extraction
发明人：POWELL JOSEPH BROUN; WEIDER PAUL RICHARD; KNIFTON JOHN FREDERICK; ALLEN KEVIN DALE; SLAUGH LYNN HENRY; ARHANCET JUAN PEDRO
权利人:SHELL OIL CO
摘要:This invention is a process for synthesizing aliphatic 1,3-diols in one step by hydroformylation and hydrogenation of oxirane, carbon monoxide, and hydrogen employing a catalyst comprising a cobalt carbonyl compound and a cocatalyst metal compound ligated with a ligand in a ligand to cocatalyst metal atom molar ratio in the range of 0.2:1.0 to 0.6:1.0, optionally in the presence of a promoter, where recovery of product is preferably accomplished via water extraction of a diol rich phase from the bulk reaction mixture. The process modifications can, particularly in combination, be beneficial with respect to product recovery, catalyst recycle, and overall economics of a one-step process for producing aliphatic 1,3-diols.