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| Number | Title | Issue Date |
| 7683208 | Bridge compound with N,N-dialkylamino group and application thereof The present invention relates to a bridge compound with an N,N-dialkylamino group, represented by the following formula (I), wherein, R, R′, R″, R1, R2, B, B′, i, j, m, and n are defined the same... | 03/23/2010 |
| 6521769 | Chiral phosphines, transition metal complexes thereof and uses thereof in asymmetric reactions Chiral ligands and transition metal complexes based on such chiral ligands useful in asymmetric catalysis are disclosed. The chiral ligands include chiral C1-C6 TunaPhos ligands. The ruthenium TunaPhos complex reduces ketones to the corresponding alcohols... | 02/18/2003 |
| 6153789 | Purification of aqueous dye solutions The present invention provides a method of purifying an aqueous dye solution having an aldehyde and/or ketone impurity including a step of reacting the impurity with a hydrazine derivative, forming a water-insoluble hydrazone compound. The hydrazone compo... | 11/28/2000 |
| 5659061 | Tumor protease activated prodrugs of phosphoramide mustard analogs with toxification and detoxification functionalities The composition, synthesis, and applications of tumor associated protease activated prodrugs of phosphoramide mustard, isophosphoramide mustard and analogs with detoxification functionalities are described. These drugs release a cytotoxic phosphoramide mu... | 08/19/1997 |
| 5405993 | Reactive formazan dyes and hydrazones There are described formazan dyes of the formula ##STR1## where n is 1 or 2, Kat.cndot. is the equivalent of a cation, Me is copper or nickel, X is a radical of the formula CO-O or SO2 -O, Y is vinyl or a radical of the formula C2 H4... | 04/11/1995 |
| 5387674 | Reactive formazan dyes and hydrazones There are described formazan dyes of the formula ##STR1## where n is 1 or 2, Kat.sym. is the equivalent of a cation, Me is copper or nickel, X is a radical of the formula CO--O or SO2 --O, Y is vinyl or a radical of the formula C2 | 02/07/1995 |
| 5360930 | Direct dyes having a quaternary center with a long aliphatic chain Direct dyes having quaternary center with a long aliphatic chain, compositions containing those dyes, and the process of using them to dye hair are disclosed. These dyes have a higher affinity for hair and are more shampoo stable than conventional direct ... | 11/01/1994 |
| 5274162 | Antineoplastic drugs with bipolar toxification/detoxification functionalities The composition, methods of synthesis, and applications of a new class of tumor selective antineoplastic drugs is described. These novel antineoplastic agents are of the general structure: A-C-B. The agents are designed with two key functionalities: a tri... | 12/28/1993 |
| 5130454 | Polytetrahydrofuran derivatives having terminal aromatic groups Polytetrahydrofuran derivatives of the general formula ##STR1## where n is from 2 to 70, X is the bridge member --NH-- or --O-- and R1 and R4 are each hydrogen or various radicals.... | 07/14/1992 |
| 4992589 | Substituted phenyl hydroxyethyl sulfones, and process for their preparation Compounds of the formula (1) ##STR1## in which X denotes a sulfur atom or the group ##STR2## in which R denotes a hydrogen atom, an alkylene-C1 -C4 -alkoxy-C1 -C6 - or alkyl-C1 -C6 | 02/12/1991 |
| 4837283 | Monomeric, oligomeric and polymeric sulfonates Monomeric, oligomeric and polymeric sulfonates are formed by the reaction of a compound containing at least one epihalohydrin residue and a sulfonate compound selected from the group consisting of phenolsulfonic acid salts, naphtholsulfonic acid salts, am... | 06/06/1989 |
| 4723029 | Organic acid-substituted guanidine anthelmintics This invention relates to organic acid-substituted guanidine compounds. Also disclosed are methods for preparing the compounds, compositions containing them, and methods for their use as anthelmintics.... | 02/02/1988 |
| 4678611 | Novel dyestuff intermediates and use thereof for the manufacture of novel azo dyes Dyestuff intermediates of the formula ##STR1## wherein R1 represents hydrogen, an alkyl radical of 1 to 8 carbon atoms or a phenyl radical, R2 represents hydrogen or an acyl radical and Z represents hydrogen or a sulfo group, an... | 07/07/1987 |
| 4600797 | Process for the preparation of nitroaminobenzenes Process for the preparation of a nitroaminobenzene by nitrating an aminobenzene which is protected at the nitrogen wherein the nitration is carried out by the simultaneous combination of nitric acid and the aminobenzene to be nitrated, in the presence of ... | 07/15/1986 |
| 4562249 | Bis(4-((chloro substituted phenyl)azo)anilino methylenes There are described novel yellow to red azo compounds of the formula I ##STR1## wherein each D independently of the other is the radical of an aromatic or heterocyclic diazo component, each Z independently of the other is hydrogen or a C1 ... | 12/31/1985 |
| 4550207 | Process for the preparation of benzene compounds The reduction of azoxybenzene, azobenzenes and mixtures of azoxybenzenes and azobenzene to the hydrazobenzenes is possible under mild conditions, with high yields and without any great excess of reducing agents in the presence of raney-nickel and compound... | 10/29/1985 |
| 4507446 | Water-soluble or water-dispersible resinous sulphur or phosphorus containing salts, their preparation, and their use in coatings Water-soluble or water-dispersible resinous salts are prepared by `tipping` an epoxy resin with a phenol, then carrying out a Mannich reaction with an aldehyde (usually formaldehyde) and an aminosulfonic or aminophosphonic acid, followed by salt formation... | 03/26/1985 |
| 4250327 | Polymeric yellow colorant A group of water-soluble polymeric yellow colors and their preparation is disclosed. These colors comprise a plurality of units of a chromophore of the formula ##STR1## wherein M+ is a pharmaceutically acceptable monovalent cation att... | 02/10/1981 |
| 4116991 | Hydroxy-containing agents for chelating metal ions and a process for preparing same A chelating agent of the formula: ##STR1## wherein R1 through R5 are each selected from the group which consists of hydrogen, methyl, ethyl and propyl; S1 and S2 are each selected from the group which consists o... | 09/26/1978 |
| 4097525 | Aromatic amidines as antiviral agents in animals Novel [N,N-di(higher alkyl)aminomethyl]benzamidine and substituted compounds such as [N,N-di(higher alkyl)aminomethyl]-N-(2-propyl)-benzamidine and [N,N-di(higher alkyl)aminomethyl]-N-(p-hydroxyphenyl)-benzamidine and their non-toxic acid addition sa... | 06/27/1978 |
