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| Number | Title | Issue Date |
| 7993494 | Method for manufacturing triarylpyrazine derivative A novel synthesis method of a triarylpyrazine derivative, in particular, a manufacturing method by which a triarylpyrazine derivative, in specific, a 2,3,5-triarylpyrazine derivative in which an aryl group at a 5-position includes a substituent having an electron-wi... | 08/09/2011 |
| 6712972 | Method for the synthesis and evaluation of porphyrins, calix (4) pyrroles and allied macrocycles The present invention provides an innovative method based on reaction cum separation on single plate concept for efficient evaluation of porphyrins, calix(4)pyrroles and allied macrocycles by in-situ synthesis from pyrrole with aromatic aldehydes and ketones over ze... | 03/30/2004 |
| 6605194 | Substituted calix (4) pyrroles and process for the synthesis of calix (4) pyrroles over molecular sieve catalysts The present invention relates to novel calix pyrroles and a process for synthesis of calix (4) pyrroles by reacting pyrrole with cyclic or acyclic ketones in dichloro methane (DCM) solvent over molecular sieve catalysts which provides an eco-friendly, mor... | 08/12/2003 |
| 6551467 | Microwave facilitated allyllic substitution The present invention is draw to microwave heating of a transition metal-catalysed organic reaction, in which a catalyst complex between a transition metal and an auxiliary ligand or ligands, the ligand being asymmetric or symmetric, monodentate or bident... | 04/22/2003 |
| 6524446 | Process for synthesis of a porphyrin compound using a molecular sieve catalyst under microwave irradiation The present invention provides an improved process for synthesis of porphyrin compounds of the general formula 1 ##STR1## from pyrrole and aromatic aldehyde over zeolite molecular sieve catalysts using microwave heating, (solvent free) to provide an eco-f... | 02/25/2003 |
| 6491796 | Synthesis of phthalocyanines by microwave irradiation This invention provides a novel process for preparing soluble phthalocyanines by microwave irradiation in the absence of any organic solvent. Three different starting materials, i.e. t-butylphthalic anhydride, t-butyl phthalonitrile and metal-free H2... | 12/10/2002 |
| 5912345 | Process for the preparation of lamotrigine The invention provides a process for producing lamotrigine of formula (I): ##STR1## which process comprises subjecting a compound of formula (II): ##STR2## wherein R is CN or CONH2, in an organic solvent, to ultra violet or visible ra... | 06/15/1999 |
| 5489590 | Method of treating with therapeutic composition comprising photoactive compound A therapeutic composition derived from a pre-activated photoactive compound and a conveyor for destroying tumor or other pathogenic biological contaminants infecting animal body tissues. The conveyor can either be a matrix support or an antibody. The acti... | 02/06/1996 |
| 5352787 | Process for the preparation of 5-(trifluoromethyl)-uracil, and the novel compounds 2,4-dichloro-5-trichloromethyl-pyrimidine and 2,4-difluoro-5-trifluoromethyl-pyrimidine 5-Trifluoromethyl-uracil is obtained by chlorinating thymine under mild conditions, further chlorinating the resulting 2,4-dichloro-5-methyl-pyrimidine under drastic conditions to give 2,4-dichloro-5-trichloromethylpyrimidine, reacting the latter with a ... | 10/04/1994 |
| 5294517 | Energy-curable cyanate compositions Energy polymerizable compositions comprising at least one cyanate monomer and as curing agent an organometallic compound are disclosed. The compositions are useful in applications requiring high performance, such as high temperature performance; in compos... | 03/15/1994 |
| 5215860 | Energy-curable cyanate compositions Energy polymerizable compositions comprising at least one cyanate monomer and as curing agent an organometallic compound are disclosed. The compositions are useful in applications requiring high performance, such as high temperature performance; in compos... | 06/01/1993 |
| 5157032 | Mixed ligand complexes and uses thereof as binding agents and probes to DNA This invention concerns a coordination complex or salt thereof which is spectroscopically or photoactively determinable when bound to DNA having the formula ##STR1## wherein M is a suitable transition metal and each of R1, R2 an... | 10/20/1992 |
| 5112974 | Mixed ligand complexes and uses thereof as binding agents to DNA This invention concerns a coordination complex or salt thereof which is spectroscopically or photoactively determinable when bound to DNA having the formula ##STR1## wherein M is a suitable transition metal and each of R1, R2 an... | 05/12/1992 |
| 5091385 | Pre-activated therapeutic agents derived from photoactive compounds A pre-activated therapeutic agent derived from a photoactive compound for destroying tumor or other pathogenic biological contaminants infecting animal body tissues. The activation of the photoactive compound is carried out prior to the photoactive compou... | 02/25/1992 |
| 4976834 | Asymmetric photochemical reaction process An optically active substance having an optical purity of at least 50% e.e. is obtained by an asymmetric photochemical reaction by converting a starting, achiral material in a chiral crystalline form and irradiating light to the chiral crystalline form to... | 12/11/1990 |
| 4977259 | Process for preparing reactive stabilizing compound Reactive stabilizing compounds, able to stabilize organic polymers, contain in their molecule a sterically hindered amino group and a hydrolyzable silyl function. In stabilizing organic polymers, said reactive stabilizing compounds can be hydrolyzed at th... | 12/11/1990 |
| 4957609 | Process for preparing N-heterocyclic compounds The invention relates to a process for the preparation of compounds of general formula (I) ##STR1## wherein R1 represents a hydrogen atom or a C1-10 alkyl, C3-7 cycloalkyl, C3-7 cycloalkyl-(C1-4)... | 09/18/1990 |
| 4939156 | New tetramethyl-cis-diaza-bicyclo{4.2.0}octane-3,5-dione derivatives having differentiation-inducing activity and antiviral activity As new compounds are now provided 7,7,8,8,-tetramethyl-cis-diaza-bicyclo{4.2.0}octane-3,5,-dione derivatives which have an activity to induce the differentiation of tumor cells and are useful as antitumor agent, and which also have an antiviral activity ... | 07/03/1990 |
| 4908111 | Process for the preparation of 7-(2-diethylaminoethyl)-theophylline acetyl salicylate and use thereof A process for the preparation of 7-(2-diethylaminoethyl)-theophylline acetylsalicylate and use of the product obtained. The process comprises prior filtering of a solution of the reactants through a layer of diatomaceous earth and activated carbon, coolin... | 03/13/1990 |
| 4888100 | Photochemical conversion of cephalosporins, 1-carba(1-dethia)cephalosporins and 1-oxa(1-dethia)cephalosporins A process for photochemically converting 3-exomethylene cephams (or 1-carba(1-dethia)cephams or and 1-oxa(1-dethia)cephams) from the corresponding 3-alkyl-3-cephem (or 1-carba(1-dethia)cephem or 1-oxa(1-dethia)cephem) is provided. Further provided are 3-c... | 12/19/1989 |
| 4886735 | Photopolymerizable recording materials and photoresist layers and lithographic printing plates based thereon Photopolymerizable recording materials suitable for producing photoresist layers and lithographic printing plates are composed of one or more photopolymerizable olefinically unsaturated organic compounds, optionally a polymeric binder, one or more photopo... | 12/12/1989 |
| 4851094 | Process for producing amidine sulfonic acid intermediates for guanidines An efficient synthesis of quanidines, e.g. of the formula (III), by oxidizing a thiourea, e.g. of the following formula (II): ##STR1## with H2 O2 and a molybdenum catalyst to yield an aminoiminomethane sulfonic acid which can th... | 07/25/1989 |
| 4721669 | Chemical probes for left-handed DNA and chiral metal complexes as Z-specific anti-tumor agents This invention concerns a coordination complex and salts and optically resolved enantiomers thereof, of the formula (R)3 --M, wherein R comprises 1,10-phenanthroline or a substituted derivative thereof, M comprises a suitable transition metal, ... | 01/26/1988 |
| 4699978 | Site-specific chiral ruthenium (II) and cobalt (III) antitumor agents This invention concerns a coordination complex of the formula (R)2 --M--(Y)2 wherein M comprises a suitable transition metal, e.g. cobalt or ruthenium, R comprises 1,10-phenanthroline or a substituted derivative thereof, Y comprises ... | 10/13/1987 |
| 4645577 | Production of cyanuric acid There is disclosed a method for the conversion of urea to cyanuric acid and cyclic by-products which comprises exposing urea in a liquid state to microwave radiation. Urea in liquid form, either molten anhydrous or in solution, is absorbent to microwave r... | 02/24/1987 |
| 4545880 | Photochemical process for preparing camptothecin derivatives New Camptothecin derivatives possessing high anti-tumor activity with slight toxicity, represented by the general formula: ##STR1## wherein R1 stands for a hydrogen atom, an alkyl group, a hydroxyl group, an alkoxy group or an acyloxy grou... | 10/08/1985 |
| 4521337 | Chemical process A process for the preparation of a compound of the formulae (Ia) and/or (Ib): ##STR1## wherein R1 and R2 are independently substituted or unsubstituted hydrocarbon groups or are joined together so as to form a carbocyclic or ... | 06/04/1985 |
| 4483757 | Photochemical process for preparing amines Aliphatic, cycloaliphatic, heterocyclic aliphatic and aromatic amines are prepared in a liquid phase reaction under the influence of light energy in the presence of a specified ammonium halide photocatalyst whereby addition of N--H bonds from ammonia or a... | 11/20/1984 |
| 4464300 | Triazolo benzazepines There are presented benzazepines of the formula ##STR1## wherein either R1 is hydrogen, lower alkyl, 4-pyridyl or the group --(CH2)n --NR6 R7 and R2 and R3 together are an a... | 08/07/1984 |
| 4401535 | Photochemical method of preparing dihydrocarbyl mercaptohydrocarbyl phosphonates as silica-to-rubber coupling agents Silica-reinforced rubber compositions are prepared employing a mercaptan-substituted phosphonate as a coupling agent. Preparation and use of the mercaptan-substituted phosphonate coupling agent is illustrated using dimethyl 3-mercaptopropylphosphonate and... | 08/30/1983 |
| 4369206 | Ammonium salts of -ketocarboxylic acids This invention relates to new ammonium salts of -ketocarboxylic acids, to their use for the production of amines in situ by photochemical decomposition and to photochemically hardenable coating compositions containing these ammonium salts.... | 01/18/1983 |
| 4364808 | Photochemical preparation of silanes containing imide groups The compounds according to the invention have the formula I ##STR1## in which R1, R2 and R3 are monovalent organic radicals or chlorine and Z is a tetravalent organic radical and A is a divalent organic grouping. Thes... | 12/21/1982 |
| 4360530 | 5-[p-(Substituted)phenyl]-2,2-dialkyl-4-phenyl-3-oxazoline Compounds of the formula ##STR1## wherein R1 and R2, independently, are hydrogen, halogen or lower alkyl; R3, R4, R5, R6 and R7, independently, are hydrogen or lower alkyl; ... | 11/23/1982 |
| 4357327 | Heterocyclic substituted triazolyl phosphorous compounds and their use as insecticides Compounds are prepared which correspond to the formula ##STR1## wherein R represents a nitrogen containing heterocyclic radical corresponding to one of the formulae ##STR2## each X independently represents chloro, fluoro, bromo, nitro, alkyl of ... | 11/02/1982 |
| 4317914 | Oxazolines Compounds of the formula ##STR1## wherein R1 and R2, independently, are hydrogen, halogen or lower alkyl; R3, R4, R5, R6 and R7, independently, are hydrogen or C1-3 | 03/02/1982 |
| 4309258 | Conversion of benzimidazole isomers A method of isomerization is disclosed which converts the anti isomer of 1-isopropylsulfonyl-2-amino-6-(-hydroxyiminobenzyl)benzimidazole to the syn isomer using photolysis.... | 01/05/1982 |
| 4287035 | Method for producing rapid pH changes A method of initiating a rapid pH change in a solution by irradiating the solution with an intense flux of electromagnetic radiation of a frequency which produces a substantial pK change to a compound in solution. To optimize the resulting pH change, the ... | 09/01/1981 |
| 4233129 | Process of preparation of alkyl esters of dl cis chrysanthemic acid A process for the production of an alkyl ester of dl cis chrysanthemic acid having the formula ##STR1## wherein R is an alkyl having from 1 to 6 carbon atoms, involving preparing a lithiated derivative of 2-methyl-pent-2-en-4-yne, reacting the same w... | 11/11/1980 |
| 4230854 | Analogues of ergot alkaloids Ergot alkaloids having interesting pharmacological activities, for instance in the therapy of migraine or hypertension. Such compounds are obtained in a fermentative process using mutant strains of Claviceps purpurea eventually hydrogenating the products ... | 10/28/1980 |
| 4201638 | Triple ions of 1,2- and 1,4-dicarbonyl compounds and analogs thereof containing nitrogen and containing two strategic oxygen or nitrogen groups and process for producing same Stable paramagnetic alkali radical cationic triple ions of selected 1,2 and 1,4 dicarbonyl compounds and their nitrogen-containing analogs have been produced by both conventional alkali metal reduction of an appropriate organic compound and by a novel pro... | 05/06/1980 |
