CAS: 75-45-6; Difluorochloromethane

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CAS号75-10-5 二氟甲烷 | CAS号67-66-3 氯仿 | CAS号75-71-8 二氯二氟甲烷 | CAS号75-46-7 三氟甲烷 | CAS号1717-59-5 2,2-二氟-2-(氟磺酰基)乙酸 | CAS号1005-30-7 Benzoic acid, 4... | CAS号306-83-2 2,2-二氯-1,1,1-三氟乙烷 | CAS号2837-89-0 1,1,1,2-四氟-2-氯乙烷 | CAS号75-09-2 二氯甲烷 | CAS号1895-39-2 二氟氯乙酸钠 | CAS号1111637-77-4 3-(二氟甲氧基)-2-硝基吡啶 | CAS号1071-38-1 (二甲氨基亚甲基)二甲基氯化铵 | CAS号462-06-6 氟苯 | CAS号352-32-9 对氟甲苯 | CAS号95-52-3 邻氟甲苯 | CAS号352-70-5 3-氟甲苯 | CAS号71-43-2 苯 | CAS号35042-99-0 二氟甲基2,2,3,3-四氟丙基醚 | CAS号116-14-3 四氟乙烯 | CAS号75-10-5 二氟甲烷

二氯二氟甲烷置于ammonium Persulfate,Ammonium Formate体系中,用 N,N-二甲基甲酰胺 作为反应溶剂,化学反应生成 氟里昂-22
参考文献:Reduction Of Polyhalofluoroalkanes With Formate To Hydrogen-Bearing Alternatives Initiated By Carbon Dioxide Anionic Radical
标题:Reduction Of Polyhalofluoroalkanes With Formate To Hydrogen-Bearing Alternatives Initiated By Carbon Dioxide Anionic Radical
摘要:Reduction Of Polyhalofluoroalkanes With Formate In The Presence Of A Catalytic Amount Of Persulfate Is Described. Such A Reagent Possesses Good Selectivity In The Reduction Of Carbon-Chlorine Bonds. A Chain Mechanism Including Carbon Dioxide Anionic Radicals And Polyhalofluoroalkyl Radicals Is Proposed.
DOI:10.1016/s0022-1139(00)81259-2

专利信息

专利号:US-11926589-B2
优先权日:2019-07-09
标 题 :Process for the synthesis of non-racemic cyclohexenes
发明人：REISMAN SARAH; ROMBOLA MICHAEL; LADD CAROLYN L; MCLAUGHLIN MARTIN JOHN; ZUEND STEPHAN; GOETZ ROLAND
权利人:BASF CORP; CALIFORNIA INST OF TECHN
摘要:This invention relates to a process for the synthesis of a non-racemic cyclohexene compound of formula (I) by a Diels-Alder reaction of a compound of formula (II) with a compound of formula (III) wherein R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , R 9 and Y have the meanings as defined in the description in the presence of a catalyst comprising at least one m-valent metal cation M m+ wherein the metal M is selected from Scandium (Sc), Yttrium (Y), Lanthanum (La), Cerium (Ce), Praseodymium (Pr), Neodymium (Nd), Promethium (Pm), Samarium (Sm), Europium (Eu), Gadolinium 15 (Gd), Terbium (Tb), Dysprosium (Dy), Holmium (Ho), Erbium (Er), Thulium (Tm), Ytterbium (Yb), Lutetium (Lu), Gallium (Ga) and Indium (In), and m is an integer of 1, 2 or 3, and a chiral ligand of the formula (IV) wherein R 10a , R 10b , R 10c , R 10d , R 10a′ , R 10b′ , R 10c′ , R 10d′ , Z and Z′ have the meanings as defined in the description.

专利号:US-7534906-B2
优先权日:2002-06-28
标 题:Process for the synthesis of hydrogenofluoromethylenesulphonyl radical derivatives
发明人：SAINT-JALMES LAURENT
权利人:RHODIA CHIMIE SA
摘要:The invention concerns a method for synthesis of hydrogenofluoromethylenesulphonyl radical derivatives, comprising: a) a step which consists in condensing a thiolate (that is a monoalkyl sulphide salt) with a compound having a sp; 3hybridized carbon bearing a hydrogen, a fluorine, a heavy halogen selected among chlorine, bromine and iodine and an electron-attracting group selected among fluorine and those whereof the; is not less than 0.2, advantageously than 0.4; b) a step which consists in oxidizing the compound obtained in step a). The invention is applicable to the synthesis of various compounds having a suphinyl or sulphonyl group.

专利号:US-9126995-B2
优先权日:2011-11-08
标题:Method for catalytic asymmetric synthesis of optically active isoxazoline compound and optically active isoxazoline compound
发明人：TOYAMA KEN-ICHI; MORIYAMA YUJI; MATOBA KAZUTAKA; YAOSAKA MANABU; IKEDA EITATSU
权利人:NISSAN CHEMICAL IND LTD
摘要:There is provided a method for catalytic asymmetric synthesis of optically active isoxazoline compound and an optically active isoxazoline compound. A method for catalytic asymmetric synthesis of optically active isoxazoline compound of a formula (6) including reacting an α,β-unsaturated carbonyl compound of a formula (1) and a hydroxylamine in a solvent in the presence of a base by adding a chiral phase transfer catalyst. An optically active isoxazoline compound of a formula (13) that can be synthesized by the method.

专利号:US-4751312-A
优先权日:1984-07-20
标 题:Process and intermediates for the synthesis of diastereomeric compounds
发明人：GASTEIGER JOHANN; KAUFMANN KARLHEINZ; MENGEL RUDOLF
权利人:BAYER AG
摘要:A new process for the controlled synthesis of the two diasteromeric forms of triazolyl-O,N-acetals of the formula (I) in which R represents optionally substituted phenyl, optionally substituted phenoxy, optionally substituted alkoxy, optionally substituted alkoxy, optionally substituted alkylthio, alkylcarbonyl, nitro or halogen and n represents an integer from 0 to 5, with the proviso that R can represent identical or different radicals, if n represents an integer from 2 to 5. New trans-substituted oxiranes and their use as intermediates for the synthesis of compounds of the formula (I).

专利号:WO-2024105700-A1
优先权日:2022-11-18
标 题:A method for the synthesis of anthranilic amide compounds and intermediates thereof
发明人：MALVIYA NITIN; MAL SANJIB; KLAUSENER ALEXANDER G M
权利人:PI INDUSTRIES LTD
摘要:The present invention discloses a method for the synthesis of a compound of formula (V) or a salt thereof, wherein, R, R1, R2, R3, R4a and R4b are as defined in the detailed description. The method further comprises the synthesis of an anthranilic diamide compound of formula (Z).

专利号:US-6252105-B1
优先权日:1998-07-06
标题:Synthesis of low-fluoride organic compounds
发明人：BRAUN MAX; EICHER JOHANNES; JANSSENS FRANCINE; EICHHOLZ KERSTIN; PALSHERM STEFAN
权利人:SOLVAY FLUOR & DERIVATE
摘要:Organic compounds, e.g. fluorinated organic compounds such as fluorinated carboxylic acids or fluorinated carboxylic acid chlorides, may contain small amounts of carboxylic acid fluorides, hydrogen fluoride or hydrolyzable fluoride, which during the preparation of derivatives of the fluorinated organic compounds, for example by esterification, may yield corrosive fluorides or hydrogen fluoride. The invention is a method for the synthesis and/or purification of preferably fluorinated organic compounds such as carboxylic acids, carboxylic acid chlorides and derivatives such as esters thereof, starting from corresponding carboxylic acid chlorides containing acid fluorides or hydrolyzable fluoride, and alcohols under the catalytic action of 'onium' salts of carboxylic acids, to obtain products which have a low fluoride content. Alternatively, an inorganic oxide adsorbent is utilized. The method is especially suitable for the synthesis of esters of trifluoroacetic acid, chlorodifluoroacetic acid, trifluoroacetoacetic acid and/or difluoroacetoacetic acid.