CAS: 98-32-8; 3-Amino-4-Hydroxybenzenesulfonamide

上下游产品

4-hydroxy-3-nitrobenzenesulfonamide 4-hydroxy-3-(4-nitro-benzylidenamino)-benzenesulfonic acid amide 3-amino-4-hydroxy-5-nitro-benzenesulfonamide (2-Hydroxy-5-sulfamoyl-phenylazo)-2-methoxy-acetoacetanilid (2-Hydroxy-5-sulfamoyl-phenylazo)-4-methyl-acetoacetanilid

Alkaline Earth Salt Of/the/ Methylsulfuric Acid置于盐酸,Tin体系中,化学反应生成 3-氨基-4-羟基苯磺酰胺
参考文献:Williams,Journal Of The Chemical Society,1942,P. 709
标题:Williams,Journal Of The Chemical Society,1942,P. 709

专利信息

专利号:US-4005067-A
优先权日:1970-10-28
标题 :Process for the synthesis of nitrite ion-containing 1:1 complexes of cobalt and metallizable monoazo or azomethine compounds and such complexes
发明人：DORE JACKY
权利人:SANDOZ LTD
摘要:By metallization of metallizable monoazo or azomethine dyes with cobalt-donating compounds in the presence of a nitrite, especially NaNO 2 , 1:1 cobalt complexes containing a nitrite ion are obtained in a high degree of metallization which can be reacted with metallizable monoazo or azomethine dyes to give very homogeneous 2:1 cobalt complexes in a high degree of purity. This is particularly advantageous when asymmetrical 2:1 cobalt complexes are to be prepared. The process is particularly useful for the preparation of nitrite ion-containing 1:1 complexes of cobalt and a monoazo compound of the formula ##STR1## wherein X is --OH or --NHR, n wherein R is hydrogen or a substituted or unsubstituted alkyl, cycloalkyl, phenyl or naphthyl group, n Ring A is further unsubstituted or further substituted by at least one halo, nitro or optionally substituted alkyl, alkoxy or sulfamoyl substituent, and n The naphthalene ring is further unsubstituted or further substituted by at least one hydroxy, sulfamoyl or acylamino substituent.

专利号:US-4820309-A
优先权日:1987-03-05
标题 :1:2-chromium complex dyes for tanned leather
发明人：HOLLIGER HERBERT
权利人:SANDOZ LTD
摘要:Complexes of the formula ##STR1## wherein each R 1 is independently (a) the radical of a coupling component of the active methylene non-cyclic or homocyclic series, (b) the radical of a coupling component of the heterocyclic series or (c) the radical of a coupling component of the monocyclic benzene series, n with the proviso that at least one R 1 is the radical of a coupling component of the active methylene non-cyclic or homocyclic series, n each R 2 is independently hydrogen, C 1-4 alkyl or --SO 2 NR 4 R 5 , n each R 3 is independently hydrogen, halo, C 1-4 alkyl or --SO 2 NR 4 R 5 , and n each M and M 1 is independently hydrogen or a cation, n wherein each R 4 is independently hydrogen, C 1-4 alkyl or C 2-3 hydroxyalkyl, and n each R 5 is independently hydrogen, C 1-4 alkyl, C 2-3 hydroxyalkyl, cyclohexyl, cyclohexyl substituted by methyl, phenyl or phenyl substituted by methyl, with the proviso that at least one of Ring A and R 1 of each disazo ligand bears an --SO 2 NR 4 R 5 group, n and mixtures of such or containing such complexes, the use of such complexes and mixtures for dyeing substrates dyeable with anionic dyes (e.g., tanned leather and pelts), substrates dyed therewith, processes for synthesizing such complexes and mixtures and disazo compounds useful in their synthesis.

专利号:US-8445651-B2
优先权日:2008-10-23
标题 :Method for producing charge control agent and toner
发明人：ZHU SHUNQUAN; WANG YUBIN
权利人:ZHU SHUNQUAN; WANG YUBIN; HUBEI DINGLONG CHEMICAL CO LTD
摘要:The invention discloses a method for producing a charge control agent and a toner containing the charge control agent. The preparation method includes the technical proposal that in aqueous medium, an azo compound is reacted with a salicylic acid chromium complex, which is used as a complexing agent to synthesize a specific azo chromium complex. The preparation method is characterized by complex synthesis engineering. The toner of the invention includes a charge control agent obtained from the method described herein. Provided is a method for obtaining a charge control agent and a toner with excellent chargeability in that no flying or fogging is observed, even during image formation at high printing speeds. The toner is relatively free from the influences of variations in the environmental temperature and humidity, which ensures stable image printing with high picture quality for long periods of time.