CAS: 68359-57-9; 4-Fluoro-3-Phenoxybenzaldehyde

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CAS号77771-05-2 2-(4-fluoro-3-p... | CAS号68359-55-7 4-(bromomethyl)... | CAS号108-03-2 1-硝基丙烷 | CAS号68359-37-5 氟氯氰菊酯 | CAS号68359-53-5 氟醚醇 | CAS号117252-08-1 4-氟-3-苯氧基-苯甲酸甲酯 | CAS号113079-73-5 ethyl 3-(4-fluo... | CAS号77279-89-1 4-fluoro-3-phen...

2-(4-氟-3-苯氧基苯基)-1,3-二氧杂环戊烷置于乙醇,甲苯,水,Sodium Sulfate-Iii体系中,用 乙醇,水,盐酸 作为反应溶剂,25.0 °C,1.78 Kpa 条件下,反应 3.0H,以19.6 G (91% Of Theory) Of 4-Fluoro-3-Phenoxy-Benzaldehyde Were Obtained In This Manner In The Form Of A Colorless Oil With A Boiling Point Of 102°-104oc./0.1 Mm Hg的收率获得产物3-苯氧基-4-氟苯甲醛
参考文献:Preparation Of 4-Fluoro-3-Phenoxy-Benzal-Dehyde Acetals And
标题:Preparation Of 4-Fluoro-3-Phenoxy-Benzal-Dehyde Acetals And
摘要:新的化合物 ##str1## 被制备并转化为新的缩醛 ##str2##,该缩醛在存在铜或铜化合物催化剂和稀释剂的情况下,与碱性苯酚盐或碱土金属苯酚盐在大约100oc至200oc的温度下反应,反应生成新的缩醛 ##str3##,它可以水解为对应的醛,这是拟除虫菊酯类杀虫剂的已知中间体.

专利信息

专利号:US-4383949-A
优先权日:1980-07-16
标题:Preparation of 3-bromo-4-fluorobenzaldehyde and its acetals
发明人：MAURER FRITZ; RIEBEL HANS-JOCHEM; PRIESNITZ UWE; KLAUKE ERICH
权利人:BAYER AG
摘要:A process for the preparation of a 3-bromo-4-fluorobenzaldehyde acetal of the formula ##STR1## in which R 1 is methyl or ethyl, n which comprises reacting a 3-bromo-4-fluoro-benzoic acid halide with ammonia to form 3-bromo-4-fluoro-benzoic acid amide, dehydrating said amide to form 3-bromo-4-fluoro-benzonitrile, reacting the nitrile with formic acid in the presence of a catalyst at a temperature between about 0° and 150° C. to form 3-bromo-4-fluorobenzaldehyde, and reacting said aldehyde with R 1 OH or a derivative thereof capable of forming an acetal. The amide and nitrile are new compounds. The acetals are known intermediates in the synthesis of pyrethroid-like insecticides.

专利号:EP-1253146-B1
优先权日:2001-04-27
标题 :Process for the synthesis of substituted furancarboxylates
发明人：POECHLAUER PETER; GANGLBERGER THORSTEN; MAYRHOFER HERBERT
权利人:DSM FINE CHEM AUSTRIA GMBH
摘要:Alkyl 4-amino-2-alkyl-5-substituted-furan-3-carboxylates (I) are prepared by reacting a hydroxy-nitrile of formula R1-CH(OH)-CN (II) with a beta -ketoacid ester (III) in the presence of a metal halide catalyst and an inert organic solvent at 0 - 120 degrees C, followed by removing the catalyst and recovering (I).. Alkyl 4-amino-2-alkyl-5-substituted-furan-3-carboxylates of formula (I) are prepared by reacting a hydroxy-nitrile of formula R1-CH(OH)-CN (II) with a beta -dicarbonyl compound of formula R2-CO-CH2-COOR3 (III) in the presence of a metal halide catalyst and an inert organic solvent at 0 - 120 degrees C, followed by removing the catalyst and recovering (I). R1 = 1-18C alkyl, alkenyl or alkynyl (all optionally substituted by inert groups), or an optionally substituted aromatic or heterocyclic group; and R2, R3 = 1-4C alkyl.

专利号:EP-1644401-B1
优先权日:2003-07-04
标 题:Improved process for supported phase synthesis
发明人：COOL VINCENT; FORNI LUCIANO; MONNAIE DIDIER; RONVAUX ALAIN
权利人:LONZA AG
摘要:The present invention relates to an improved process for supported phase synthesis, in particular for supported phase peptide synthesis, that makes use of salts, in particular of quaternary ammonium salts.

专利号:US-4229368-A
优先权日:1978-05-04
标题 :Esters and thiolesters of unsaturated acids
发明人：ANDERSON RICHARD J; HENRICK CLIVE A
权利人:ZOECON CORP
摘要:Esters and thiolesters of α-substituted unsaturated acids, intermediates therefor, synthesis thereof, and the use of said esters and thiolesters and compositions thereof for the control of pests.

专利号:US-4225533-A
优先权日:1979-06-01
标题:Fluorobenzyl esters of cyclopropanecarboxylic acids
发明人：HENRICK CLIVE A
权利人:ZOECON CORP
摘要:Novel esters of ether and thioether substituted cyclopropanecarboxylic acids, synthesis thereof, and intermediates therefor, such esters being useful as pesticides.

专利号:EP-1253146-A1
优先权日:2001-04-27
标 题:Process for the synthesis of substituted furancarboxylates