CAS: 636-30-6; 2,4,5-Trichloroaniline

上下游产品

CAS号89-69-0 2,4,5-三氯硝基苯 | CAS号588-07-8 3'-氯乙酰苯胺 | CAS号23627-24-9 三元乙丙胶 | CAS号120-82-1 1,2,4-三氯苯 | CAS号731007-25-3 2-amino-3,5,6-t... | CAS号2150-93-8 N-(3,4-二氯苯基)乙酰胺 | CAS号116278-64-9 N-(3,4-dichloro... | CAS号7782-50-5 氯气 | CAS号52663-72-6 2,3',4,4',5,5'-六氯联苯 | CAS号50-82-8 2,4,5-三氯苯甲酸 | CAS号37680-73-2 2,2,4,5,5-五氯联苯 | CAS号41464-51-1 2,2’,3’,4,5-戊氯联苯 | CAS号31508-00-6 2,3',4,4',5-五氯联苯标准溶液 | CAS号38380-01-7 2,2',4,4',5-五氯联苯 | CAS号52663-76-0 2,2',3,4,4',5,5... | CAS号35065-27-1 六氯联苯 | CAS号38380-04-0 2,2,3,4,5,6-六氯联苯 | CAS号35065-28-2 异辛烷中PCB138溶液

三氯苯置于硝酸体系中,化学反应生成 2,4,5-三氯苯胺
参考文献:Vohl,Journal Fur Praktische Chemie (Leipzig 1954),1866,Vol. <1> 99,P. 373
标题:Vohl,Journal Fur Praktische Chemie (Leipzig 1954),1866,Vol. <1> 99,P. 373

专利信息

专利号:US-5243032-A
优先权日:1989-06-22
标题:Preparation of azo pigments with low pcb content by coupling in the presence of olefins
发明人：RIEPER WOLFGANG
权利人:HOECHST AG
摘要:The production which is customary in practice of monoazo compounds based on dichloro- and trichloroanilines or disazo compounds of the chlorinated biphenyl series by conventional coupling methods meets with difficulties in that the resulting pigments are contaminated by traces of polychlorinated biphenyls. n According to the invention, it has now been found that by addition of water-soluble olefins of the type ##STR1## (R =H, alk or Oalk; X =--COOR 1 , --CONHR 2 or --NR 3 COR 4 ) n in the azo coupling, the side reactions which form PCBs can be decidedly suppressed during synthesis of the pigments.

专利号:US-4257942-A
优先权日:1977-10-06
标题:New water-insoluble azo dyes
发明人：DEFEO FRANCESCO; CIPOLLI ROBERTO
权利人:ACNA
摘要:The present invention relates to the synthesis of new dyes having the following general formula: wherein: D is the residue of a diazotizable component of the carbocyclic or heterocyclic series X is an ethylene group, optionally substituted by halogen-methyl, alkyl C1-C4, aryl, aralkyl or CH2OCO(HN)nR (wherein R and n have the meanings hereinafter defined); R is alkyl C1-C8 optionally substituted by halogen, CN,COOH; aryl optionally substituted by one or more atoms of halogen, alkyl C1-C4, alkoxyl C1-C4; alkoxyl C1-C4; alkoxyl C1-C8; Aryloxy; aralkoxy; cycloalkoxy; aralkyl; naphthyl optionally substituted by halogen; alkenyl C2-C8, optionally substituted by halogen, CN, COOH; R1 and R2, either like or unlike each other, may be alkyl C1-C4 optionally substituted by halogen or CN groups; aralkyl; R3 is H; halogen, alkyl C1-C4; alkoxyl C1-C4, optionally substituted. n is 0 or 1.

专利号:US-4118384-A
优先权日:1976-02-21
标题 :Process for preparation of azo dyestuffs by coupling in presence of aromatic sulphonic acid-formaldehyde reaction product
发明人：MOLLS HANS-HEINZ; SCHIWY WILLY; HORNLE REINHOLD; NEBELING REINHARD
权利人:BAYER AG
摘要:Dyestuff dispersions and dyestuff solutions free from salt or at least having a low salt content are obtained in that the diazotization is carried out with addition of free dispersing agent acid to which, after the synthesis, either no basic agents are added or basic agents are added only up to a pH value of 3. The disclosed process gives dyestuff compositions of low salt content and results in readily dispersible dyestuffs when water insoluble dyestuffs are prepared and stable solutions when water soluble dyestuffs are prepared. The process is widely applicable and chemical constitution of the dyestuffs is conventional.

专利号:JP-H06316550-A
优先权日:1992-11-25
标题:Synthesis of deactivated anilines

专利号:US-5389524-A
优先权日:1989-07-28
标 题:Method and a system for quantitatively monitoring a chemical component dissolved in a liquid medium
发明人：LARSEN BJORN E H; VINTHER ARNE; MOLLER POUL; THORSSON JORN R; SOEBERG HENRIK; SORENSEN JESPER L; LARSEN LYKKE B
权利人:KOEGE KEMISK VAERK
摘要:PCT No. PCT/DK90/00196 Sec. 371 Date Mar. 24, 1992 Sec. 102(e) Date Mar. 24, 1992 PCT Filed Jul. 30, 1990 PCT Pub. No. WO91/02254 PCT Pub. Date Feb. 21, 1991.A method and apparatus for quantitatively monitoring a chemical component dissolved in a liquid medium utilize the creation, in a measurement cell, of an interface zone between the liquid medium and an analytical reagent or reference solution. The concentration or amount of the chemical component are determined by the measurement of a value of a measurement parameter in the interface zone, and the derivation from that value of the concentration or amount of the component in comparison with a baseline or reference value measured for the reagent or reference solution alone. Matrix effects and ghosting errors are avoided. The method and apparatus can be used advantageously for on-line optimization and control of industrial, chemical and biological processes, such as chemical reactions in progress, coupling reactions for the synthesis of azo compounds, and the monitoring of in vivo or in vitro biological systems as well as for conventional analytical purposes.

专利号:CN-106588692-A
优先权日:2016-12-06
标题:A method for improving the diazotization reaction speed and conversion rate of weakly basic primary aramides and its application in the synthesis of azo-based organic pigments