合成目标产物 3,4-Dichlorotoluene 主要起始原料 4-Chlorotoluene And 2-Chlorotoluene
(文献来源)合成步骤主要原料 4-Chlorotoluene 和 2-Chlorotoluene
3,4-二氯苯甲醛置于甲醇,Palladium 10% On Activated Carbon,氢气,Potassium Carbonate体系中,用 甲醇 作为反应溶剂,60.0~65.0 °C,101.33 Kpa 条件下,反应 24.0H,反应生成 3,4-二氯甲苯 参考文献:N-Tosylhydrazine-Mediated Deoxygenative Hydrogenation Of Aldehydes And Ketones Catalyzed By Pd/c 标题:N-Tosylhydrazine-Mediated Deoxygenative Hydrogenation Of Aldehydes And Ketones Catalyzed By Pd/c 摘要:A Mild And Efficient Method For The Deoxygenative Hydrogenation Of Aldehydes And Ketones Has Been Developed. The Reaction Is Mediated By N-Tosylhydrazine With H-2 (1 Atm) As The Reductant And 10% Pd/c As The Catalyst. (C) 2013 Elsevier Ltd. All Rights Reserved. DOI:10.1016/j.Tet.2013.05.070
专利号:US-6156922-A 优先权日:1995-12-28 标题 :Method for the synthesis of an aromatic derivative ortho-disubstituted by a halogen atom other than fluorine and by a cyano group 发明人:RUSSELL JAMES; GILBERT LAURENT; MAESTRO JEAN PIERRE 权利人:RHODIA CHIMIE SA 摘要:PCT No. PCT/FR96/02100 Sec. 371 Date Sep. 15, 1998 Sec. 102(e) Date Sep. 15, 1998 PCT Filed Dec. 27, 1996 PCT Pub. No. WO97/24318 PCT Pub. Date Jul. 10, 1997The present invention relates to a method for the synthesis of a halogen substituted aryl nitrile, where the halogens are selected from Cl, Br, or I, by reacting an aryl dihalide with a halogen/fluoride exchange reactant to produce a halogen substituted aryl fluoride which is then reacted with a fluoride/cyanide exchange reactant to produce the halogen substituted aryl nitrile.
专利号:WO-9714703-A1 优先权日:1995-10-16 标 题:Synthesis of polymerisable phosphodiesters 发明人:DRIVER MICHAEL JOHN; RUSSEL JEREMY COLIN; BROWNE JUDITH ELIZABETH; SAMMES PETER G 权利人:BIOCOMPATIBLES LTD; DRIVER MICHAEL JOHN; RUSSEL JEREMY COLIN; BROWNE JUDITH ELIZABETH; SAMMES PETER G 摘要:A mono- or di-functional phosphoramidite phosphitylating agent is used to phosphitylate an ethylenically unsaturated alcohol. The product may be oxidised to form the corresponding phosphate ester which may be reacted in further steps to form phosphoryl choline derivatives. The process is of value in the synthesis of 2-(Methacryloyloxyethyl)-2'-(trimethylammoniumethyl)phosphate, inner salt. It has the advantage over prior art processes in that the starting materials and intermediates are more stable and consequently easier to handle.
专利号:US-4049710-A 优先权日:1976-02-24 标题:Novel carbamimidoyl chlorides and their use in the synthesis of herbicidal triazinediones 发明人:TOCKER STANLEY 权利人:DU PONT 摘要:Carbamimidoyl chlorides of the formula: WHERE R2 is alkyl of 1-4 carbon atoms are useful as intermediates in the synthesis of herbicidal triazinediones of the formula: where R1 is certain organic radicals.
专利号:US-6608196-B2 优先权日:2001-05-03 标题 :Process for solid supported synthesis of pyruvate-derived compounds 发明人:WANG BING; JANAGANI SATYANARAYANA; CALLAWAY WYETH B; SESSLER JONATHAN L 权利人:GALILEO PHARMACEUTICALS INC 摘要:Provided are processes for synthesizing structurally diverse pyruvate-derived compounds using a parallel approach on a solid phase support. Examples of such a solid phase support include resins which have also been used in solid phase peptide synthesis.
专利号:US-7259277-B2 优先权日:2003-07-25 标题 :Advanced route for the synthesis of cPLA2 inhibitors 发明人:WU YANZHONG; RAVEENDRATH PANOLIL 权利人:WYETH CORP 摘要:A process for making a compound of formula (I) n nin which process the compound HC≡C—(CH 2 ) n —NH 2 is reacted with the compound R 1 —SO 2 Cl to produce an intermediate compound, which intermediate compound is then reacted with the compound of formulan n nto produce the compound of formula (I), and compounds produced by the process of this invention. The terms R 1 , R 2 , R 3 , R 4 and n have the definitions set forth in the specification.
专利号:US-6048991-A 优先权日:1990-11-16 标题:Preparation of epoxides 发明人:HAERMELING DIETER 权利人:BASF AG 摘要:Alpha-hydroxy-epoxides of alpha-alkoxy-epoxides of the formula IV ##STR1## in which the substituents have the following meanings: R 7 , R 8 , R 9 , R 10 , R 11 are independently hydrogen, C 1 -C 20 -alkyl, C 3 -C 12 -cycloalkyl, C 4 -C 20 -cycloalkylalkyl, C 1 -C 20 -hydroxy-alkyl, a heterocyclic ring, or an aryl or C 7 -C 20 -arylalkyl group optionally substituted by C 1 -C 8 -alkyl, C 1 -C 8 -alkoxy, halogen, C 1 -C 4 -haloalkyl, C 1 -C 4 -halo-alkoxy, phenyl, phenoxy, halophenyl, halophenoxy, carboxy, C 2 -C 8 -alkoxycarbonyl, or cyano, or R 7 and R 8 or R 7 and R 9 or R 7 and R 10 or R 9 and R 10 or R 10 and R 11 together form a (CH 2 ) n group in which n is an integer from 1 to 10 and which may be optionally substituted by C 1 -C 8 -alkyl, C 1 -C 8 -alkoxy, and/or halogen, and n R 12 is hydrogen, C 1 -C 8 -alkyl, or benzyl, n provided that R 10 is not hydrogen, methyl, ethyl, propyl, or cyclohexyl when R 7 , R 8 , R 9 , or R 11 is hydrogen, that R 7 is not methyl when R 8 is methyl or phenyl and R 9 , R 10 , or R 11 is hydrogen, that R 7 is not methyl when R 8 , R 9 , R 10 , or R 11 is hydrogen and R 12 is ethyl, that R 7 is not phenyl or hexyl when R 8 , R 9 , R 10 , or R 11 is hydrogen, that R 9 is not methyl when R 7 , R 8 , R 10 , or R 11 is hydrogen, that R 10 and R 11 are not methyl when R 7 , R 8 , or R 9 is hydrogen, and that R 7 and R 10 do not together form an unsubstituted cycloalkyl when R 8 , R 9 , or R 11 is hydrogen. The epoxides of the above formula serve as intermediates for the synthesis of, inter alia, perfumes, plant protectants and polymers.
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