| Patent Number |
Title Of Patent |
Date Issued |
| 6444828 |
Method for preparing 1-alkyl-pyrazol-5-carboxylic acid esters III |
September 3, 2002 |
| 1-Alkyl-pyrazole-5-carboxylic esters are obtained with surprisingly low proportions of 1-alkyl-pyrazole-3-carboxylic esters if a 2,4-diketo ester and/or an enolate thereof is reacted with an alkylhydrazine and/or a corresponding alkylhydrazinium salt, if appropriate, in the presence of a |
| 6297386 |
Method of preparing 1-alkyl-pyrazol-5-carboxylic acid esters |
October 2, 2001 |
| The invention relates to the preparation of 1-alkyl-pyrazole-5-carboxylic esters by reacting the enolate of a 2,4-diketocarboxylic ester in the presence of a solvent and water with an N-alkylhydrazinium salt. This process permits a particularly economical preparation of 1-alkyl-pyraz |
| 6292345 |
Method for controlling an electromechanical actuator |
September 18, 2001 |
| A method for controlling an electromechanical actuator includes providing an actuator having an actuating element and an actuating drive. The actuating drive has at least one electromagnet with a coil, a movable armature plate, a regulator having current through the coil as a control |
| 6130350 |
Process for producing 2-fluorine-1-cyclopropane carboxylic acid derivatives by reductive dehalog |
October 10, 2000 |
| Cyclopropanecarboxylic acid derivatives are prepared by reacting halogenocyclopropanecarboxylic acid derivatives with metals in the presence of bases and with or without addition of hydrogen in an advantageous manner if the base is added during the reaction. By means of the process a |
| 6025499 |
Process for the preparation of a nitropyrazole amide |
February 15, 2000 |
| Nitropyrazole amides of the formula (I) ##STR1## are prepared by reacting nitropyrazole esters of the formula (II) ##STR2## with ammonia. |
| 5977378 |
Process for the preparation of 1-alkyl-pyrazole-5-carboxylic acid esters |
November 2, 1999 |
| 1-alkyl-pyrazole-5-carboxylic acid esters are prepared by reacting the enolate of a 2,4-diketocarboxylic acid ester with an N-alkylhydrazinium salt in the presence of a solvent. This process allows a particularly economic preparation of 1-alkyl-pyrazole-5-carboxylic acid esters in a |
| 5977362 |
Process for the preparation of quinazoline-2,4-diones |
November 2, 1999 |
| Quinazoline-2,4-diones are obtained in high yields and purities by reacting anthranilic acids with isocyanates and then, without isolation of the urea formed as intermediate, treating the reaction mixture with acid. |
| 5969152 |
Process for the preparation of nitropyrazole esters |
October 19, 1999 |
| Nitropyrazole esters of the formula ##STR1## in which R.sup.1 represents C.sub.1 -C.sub.6 -alkyl, are prepared by nitration of the corresponding pyrazole esters. The nitropyrazole esters permit the preparation of a known nitropyrazole amide in a particularly simple and economical |
| 5885474 |
Use of polyaspartic acid amides as leather auxiliary products |
March 23, 1999 |
| Leather can be pretreated to obtain good body, soft feel, and excellent grain smoothness and solidity with products having a molecular weight of 700 to 30,000 and which are obtainable by reaction ofA. polysuccinimide having a molecular weight, determined as the number-average, of 500 to |
| 5741937 |
Process for the preparation of arylidene-substituted alkylcycloalkanones |
April 21, 1998 |
| Arylidene-substituted alkylcycloalkanones are prepared from alkyl-substituted cycloalkanones by reaction with aromatic carbonyl compounds in the presence of a basic catalyst and water. |
| 5714558 |
Process for preparing polyaspartic acid |
February 3, 1998 |
| Polyaspartic acid is prepared by polymerization of aspartic acid, maleic acid anhydride, maleic acid or fumaric acid in a solvent at from 130.degree. C. to 300.degree. C., optionally in the presence of ammonia. |
| 5693831 |
(2,3-dihydro-5-benzofuranyl)-acetonitrile |
December 2, 1997 |
| The novel compound (2,3-dihydro-5-benzofuranyl)-acetonitrile is prepared by chloromethylating 2,3-dihydro-benzofuran and reacting the resulting 2,3-dihydro-5-chloromethyl-benzofuran with a cyanide. (2,3-Dihydro-5-benzofuranyl)-acetonitrile can be converted by saponification to (2,3-d |
| 5679761 |
Iminodisuccinate-containing polymers |
October 21, 1997 |
| The polymers according to the invention with repeating succinyl units additionally contain iminodisuccinate units. |
| 5672763 |
Process for the preparation of 2-substituted cyclopentanones |
September 30, 1997 |
| 2-Substituted cyclopentanones are prepared by reacting adipic ester with an alkoxide in the presence of an inert solvent, thus obtaining a salt of the cyclopentanone-2-carboxylic ester, alkylating this without isolation, thus obtaining a 2-alkyl-cyclopentanone-2-carboxylic ester and, wit |
| 5663447 |
Process for the preparation of 2,2 dialkyl-arylidene-cycloalkanones |
September 2, 1997 |
| A particularly advantageous process for the preparation of 2,2-dialkyl-arylidene-cycloalkanones is characterized in that 2-alkyl-arylidene-cycloalkanones are reacted with alkyl halides in the presence of metal hydroxides and tertiary alcohols. |
| 5648517 |
Process for the preparation of dialkyl maleates |
July 15, 1997 |
| A process has been found for the preparation of dialkyl maleates from maleic acid, maleic anhydride or monoalkyl maleates with C.sub.1 -C.sub.8 -alcohols, in particular ethanol, in the presence or absence of an acidic catalyst and at boiling heat, which is characterized in that the escap |
| 5610255 |
Process for preparing polysuccinimide and polyaspartic acid |
March 11, 1997 |
| Polysuccinimide and polyaspartic acid are prepared by polymerizing maleic anhydride, ammonia and water or maleic acid derivatives or fumaric acid derivatives in bulk or dissolved in solvents in a continuous kneading reactor. The polysuccinimide formed can be converted into polyaspartic |
| 5543490 |
Process for the preparation of polysuccinimide, polyaspartic acid and salts thereof, and the use |
August 6, 1996 |
| Polyaspartic acid is prepared by reacting maleic anhydride and ammonia to give maleamic acid, polymerizing the maleamic acid and subsequently hydrolyzing the product to give polyaspartic acid or a salt thereof. |
| 5401869 |
Process for the preparation of aminomethylene compounds |
March 28, 1995 |
| Aminomethylene compounds of the formula ##STR1## may advantageously be prepared by reacting C--H-acidic compounds of the formula ##STR2## with formamide acetals of the formula ##STR3## in which the radicals R.sup.1 to R.sup.6 have the meaning given in the description, |
| 5326911 |
Process for the preparation of ortho-amides |
July 5, 1994 |
| Ortho-amides of the formula ##STR1## can be prepared by reacting salts of the formula ##STR2## with alcoholates of the formulawhere the radicals R.sup.1 to R.sup.4, M.sup.1 and X.sup..crclbar. have the meaning given in the description. The alcoholates are employed in highly a |
| 5236939 |
Substituted 1,3,4-oxa(thia)diazolinones process for their preparation and their use of combating |
August 17, 1993 |
| Substituted 1,3,4 -oxa- diazolinones of the formula (I) ##STR1## in which X represents O andY represents O or S,are disclosed as useful to combat endoparasites. |
| 5118680 |
Combating endoparasites with 3-hydroxybenzothiophenes |
June 2, 1992 |
| A method of combating endoparasites in humans and animals which comprises administering to such humans and animals an endoparasiticidally effective amount of a 3-hydroxybenzothiophene of the formula ##STR1## in which X represents .dbd.CH-- or .dbd.N--,Y represents .dbd.O or .dbd.NH,R |
| 5095032 |
Parasiticidal new substituted thienopyranones |
March 10, 1992 |
| Parasiticidal new substituted thienopyranones of the formula ##STR1## in which X represents O or S,R.sup.1 and R.sup.2 independently of one another represent hydrogen, halogen, CN, NO.sub.2, alkyl, aralkyl, aryl, alkylcarbonyl or alkoxycarbonyl, or, together with the adjacent C atoms |
| 5095024 |
Substituted 1,3,4-thiadizaolinones, processes for their preparation, and their use for combating |
March 10, 1992 |
| Substituted 1,3,4-thiadiazolinones of the formula (I), ##STR1## in which X represents O or S,R.sup.1 represents hydrogen, alkyl, alkoxy, alkylthio, halogen, halogenoalkyl, halogenoalkoxy or halogenoalkylthio,R.sup.2 represents one or more identical or different radicals from the seri |
| 5093343 |
Substituted 1,3,4-oxa (thia) diazolinones process for their preparation and their use of combati |
March 3, 1992 |
| Substituted 1,3,4-oxa- and thiadiazolinones of the formula (I) ##STR1## in which R.sup.1 represents hydrogen, alkyl, alkoxy, alkylthio, halogen, halogenoalkyl, halogenoalkoxy or halogenoalkylthio,R.sup.2 represents one or more identical or different radicals from among hydrogen, alky |
| 4914124 |
N-organooxycarbamic acid esters for combating endoparasites |
April 3, 1990 |
| A method of combating endoparasites which comprises applying thereto or to an endoparasite habitat an endoparasiticidally effective amount of an N-organooxycarbamic acid ester of the formula ##STR1## in which R.sup.1 represents alkyl, cycloalkyl, alkenyl, alkinyl or aryl, which c |
| 4859372 |
Process for the sulphonation of aromatic compounds with sulphur trioxide |
August 22, 1989 |
| A new process for the preparation of aromatic sulphonic acids, in which the sulphonation of the aromatic compounds is carried out with sulphur trioxide in organic solvents in the presence of hydrogen halide. |
| 4804655 |
Pesticidal cyclic malonylphosphonic diamides |
February 14, 1989 |
| Novel pesticidally active cyclic malonylphosphonic diamides of the formula ##STR1## in which X.sup. represents O or S,R.sup.1 represents alkyl, alkenyl, alkinyl, cycloalkyl, aryl or heteroaryl, each of which can be optionally substituted,R.sup.2 represents hydrogen, alkyl, aryl or aralky |
| 4771048 |
Use of thiadiazinones for combating endoparasites |
September 13, 1988 |
| The present invention relates to the use of thiadiazinones of the formula I ##STR1## in which R represents the radical of the formula ##STR2## wherein X.sup.1 represents O or S,R.sup.4 represents hydrogen or alkyl,R.sup.5 represents optionally substituted phenyl,R.sup.2 represents hy |
| 4766144 |
3-carbamoyl-4-hydroxy-coumarins for combating parasitic heiminths |
August 23, 1988 |
| 3-carbamoyl-4-hydroxy-couramins for combating parasitic helminths of the formula ##STR1## in which R.sup.1 represents hydrogen, halogen, alkyl, NO.sub.2, CN or alkoxy,X represents O, S, SO or SO.sub.2R.sup.2 represents alkyl, halogenoalkyl, phenyl, naphthyl or pyridyl, which can |
