CAS: 88-51-7; 2-Amino-4-Chloro-5-Methylbenzenesulfonic Acid

上下游产品

3-chloro-p-toluidine thiophene sulfuric acid 2-amino-4-chloro-5-methyl benzenesulfonyl chloride 2-amino-4-chloro-5-methyl-benzenesulfonamide 2-azido-4-chloro-5-methylbenzenesulfonic acid 4-chloro-2-(9H-fluoren-9-ylmethoxycarbonylamino)-5-methylbenzenesulfonic acid

3-氯-4-甲基苯铵硫酸氢盐 反应生成 2-氨基-4-氯-5-甲基苯磺酸
参考文献:The Influence Of Different Solvents On 2-Ammonio-4-Chloro-5-Methylbenzenesulfonate,Including Its De-And Resulfonation
标题:The Influence Of Different Solvents On 2-Ammonio-4-Chloro-5-Methylbenzenesulfonate,Including Its De-And Resulfonation
摘要:标题化合物(2-氨基-4-氯-5-甲基苯磺酸盐),C7H8Clno3S,1,是湖红色和黄色偶氮颜料合成中的中间体.在2-吡啶,喹啉和n,N'-二甲基乙酰胺(dmac)[或n-甲基-2-吡咯烷酮(nmp)]中加热1,反应生成了三种不同的化合物:2-吡啶铵水合物(2),喹啉喹啉溶剂合物(3)和脱磺酸化标题化合物的硫酸盐(4).这三种新化合物通过单晶衍射数据进行结构表征,并通过热分析(dta/tga),元素分析和光谱方法(ir和NMR)进行化学表征.通过对2,3和4进行固态加热,可以再次获得化合物1.在4的情况下,这对应于随后的脱磺酸化-再磺酸化反应,这种反应较少被观测到.标题化合物2-氨基-4-氯-5-甲基苯磺酸盐在2-吡啶,喹啉和n,N'-二甲基乙酰胺(dmac)中加热,形成了三种不同的化合物:2-吡啶铵水合物(2),喹啉喹啉溶剂合物(3)和脱磺酸化标题化合物的硫酸盐(4,见图).对2,3和4进行固态加热,可以再次获得化合物1.在4的情况下,这对应于随后的脱磺酸化-再磺酸化反应,这种反应较少被观测到.
DOI:10.1007/s10870-013-0467-1

专利信息

专利号:US-2004241865-A1
优先权日:2001-09-04
标 题:Method and device for the process-attendant cleaning of micro-and mini-reactors
发明人：GABSKI HANS-PETER; WINTER RUEDIGER; WILLE CHRISTIAN
摘要:The invention is directed to cleaning of micro- and mini-reactors for controlled process management and for avoiding blockages on carrying out chemical reactions and physical processes. The invention is characterized in that the micro- or mini-reactor is cleaned by means of a controlled pressure increase with a subsequent sudden release or with a gas pressure surge in a cyclical manner or using a controller. Wall deposits formed from solid material(s) involved in the chemical synthesis or the physical process are thus almost completely removed such that, after the cleaning procedure, the initial operating pressure can be set in the micro- or mini-reactor. A blockage of the micro- or mini-reactor can thus be avoided and the transferring of said production method to the production scale with micro- or mini-reactors is possible for the first time. The above is particularly true for reactions in which educts in the form of suspensions are used and/or solid products arise, such as in the production of azo dyes, for example.

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:US-5532346-A
优先权日:1994-10-21
标题:Hydroxynaphthalenecarboxylic acid compounds and azo colorants made therefrom
发明人：MOORE PATRICK D; VALENTI MICHAEL A; VANDAHM RICHARD A
权利人:MILLIKEN RES CORP
摘要:A coupling component for use in the synthesis of azo colorants, selected from compounds having the formula: ##STR1## wherein R 1 is Y or arylene-(Y) n , where n is an integer from 1-4; R 2 is H, C 1 -C 8 alkyl, C 3 -C 8 cycloalkyl, aryl, or Y; provided that if R 1 is arylene-(Y) n , then R 2 is not aryl; R 3 is C 1 -C 4 alkyl, C 1 -C 4 alkoxy, SO 3 H, Br, Cl, OH, or NO 2 and m is an integer from 0-3; and Y is a poly(oxyalkylene) substituent having from 4-200 oxyalkylene units which are the addition products of compounds selected from the group consisting of ethylene oxide and propylene oxide.