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7385053 |
Functionalized compositions for improved immobilization
The present invention relates to improved covalent coupling of two or more entities such as biomolecules, polymer compositions, organic/inorganic molecules/materials, and the like, including their...
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6811833 |
4-membered ring compound and optical phase optical retardation plate using the same
A 4-membered compound is represented by the following formula (I) is disclosed (in the formula, X 1 and X 2 each independently represent an oxygen atom, a sulfur atom or a substituted or...
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5861528 |
Process for preparing diels-alder addition product from conjugated diolefin and acrylonitrile
In a process for preparing a Diels-Alder addition product of a conjugated diolefin and acrylonitrile by reacting the conjugated diolefin with acrylonitrile, a vessel type reactor is used. The...
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5618965 |
Process for preparing aromatic nitriles
Process for preparing a nitrile of the formula (I) ##STR1## in which R 1 , R 2 and R 3 are for example hydrogen, halogen, cyano, hydroxyl, carboxyl, alkyl, alkoxy, alkylthio, alkylamino,...
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4667050 |
Preparation of pyrethroid precursors
Substituted vinylcyclopropane carboxylates, useful precursors to pyrethroid insecticides, are prepared by noble metal catalyzed addition of 1-methyl-3-buten-2-yl or 4-methyl-3-penten-1-yl...
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4478758 |
Preparation of Schiff bases of aminocycloalkanecarboxylic acids esters
Schiff bases of aminocycloalkanecarboxylic acid esters of the formula ##STR1## where R, R 1 , R 2 , m and n have the meanings given in the description, are prepared by a novel process. The...
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4401601 |
Novel process for the preparation of tetra-substituted cyclopropane compounds
A process for the preparation of tetrasubstituted cyclopropane compounds of the formula ##STR1## wherein Y is selected from the group consisting of --CN and --COOR, R is selected from the group...
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4344894 |
Process for the preparation of cyclopropane carboxylic acid esters
3-(Halogenovinyl- or propenyl-)-2,2-dimethyl cyclopropane-1-carboxylic acid esters, which are precursors of, or may themselves be, pyrethroid insecticides, are prepared by the reaction of certain...
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4328363 |
Manufacture of gamma halogen substituted adducts
Halogen-substituted olefin addition compounds that contain a carbonyl group are formed by oxidatively adducting an olefin and a carbonyl compound such as a ketone, aldehyde, or ester. The method...
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4328168 |
Process for the preparation of vinylcyclopropane derivatives
This invention provides a convenient and commercially adaptable process for the preparation of vinylcyclopropane derivatives in high yield. For the process an alkylating agent and activated...
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4307033 |
Preparation of 3,3-dimethyl-cyclopropane-1,1,2-tricarboxylic acid derivatives and intermediates therefor
3,3-Dimethyl-cyclopropane-1,1,2-tricarboxylic acid derivatives of the formula ##STR1## in which R is alkyl, and R 1 and R 2 each is alkoxycarbonyl or cyano, with the proviso that at least one...
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4305885 |
Preparation of cyclopropane-carboxylic acid derivatives and intermediates therefor
A perfluoroalkane-sulphinic acid of the formula R F --SO 2 H is reacted with a diene at -20° to +20° C. to form the new intermediate ##STR1## in which R 3 -R 8 are hydrogen or various organic...
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4284582 |
Process for the preparation of cyclopropane derivatives, intermediates in the synthesis of pyrethroid insecticides
Compounds of formula: ##STR1## wherein both groups X are chlorine, bromine or trifluoromethyl, or one X is chlorine or bromine and the other is trifluoromethyl, and Y is --CN or --COOR in which R...
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4216172 |
Preparation of cyclobutanones
A process for the preparation of a cyclobutanone of the formula ##STR1## in which R 1 to R 6 each independently is a hydrogen, halogen, cyano, alkoxy, alkoxycarbonyl, carboxamido,...
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4133961 |
Process for the production of unsaturated carboxylic acids containing additional functional groups
A process for the preparation of an unsaturated dicarboxylic acid containing additional functional groups wherein a substituted cyclobutane is contacted with an anhydride of acetic, propionic or...
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4118412 |
Preparation cyano substituted cyclopropane
A process for the preparation of cyclopropane compounds which comprises reacting a compound of formula: Y--CH 2 --CN with a diene of formula: CX 2 =CH--CH=C(CH 3 ) 2 in the presence of at...
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4083863 |
Process for the preparation of cyclopropane carboxylic acids and esters
Certain derivatives of cyclopropane carboxylic acid and their esters are useful and valuable intermediates for the preparation of broad spectrum pyrethroid type pesticides. The invention provides a...
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3953494 |
Reactions involving carbon tetrahalides and α-methyl ketones or ketones having α,α'-hydrogens
A process for preparing aldehydes, ketones, carboxylic acids and esters by reaction of various substrates with carbon tetrahalides in the presence of a strong base. The reactions are accelerated by...
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3761505 |
CYANO-CARBOXY-CYCLOPROPANE DERIVATIVES USEFUL AS INTERMEDIATES IN THE PREPARATION OF CHRYSANTHEMIC ACID
The acid of the formula: ##SPC1## And its lower alkyl esters are useful intermediates in the preparation of chrysanthemic acid.
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3539615 |
PREPARATION OF CYANOCYCLOBUTANE BY THE CYCLOADDITION OF ETHYLENE AND ACRYLONITRILE
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3445499 |
NOVEL PROCESS FOR THE PREPARATION OF TRANSCHRYSANTHEMUMIC ACID
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3408344 |
3-amino-2-cyclobuten-1-one compounds and process for their preparation
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3397223 |
Preparation of cyclopropane derivatives
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3391205 |
Process of chemical manufacture
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3317586 |
Dialkoxycyclobutane carboxylic acid esters and their preparation
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3265745 |
Production of dihalocarbene adducts
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3265744 |
Production of dihalocarbene adducts
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3236878 |
Unsaturated esters
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3234264 |
1-cyano and 1-carbamoyl-3-alkylbicyclo [1.1.0] butanes and processes for preparing the same
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3189608 |
Tertiaryaminocyclobutanones and their production
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3080413 |
Polycyanocyclobutanes containing aryl substituents and method for preparing same
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3066148 |
Polycyanosubstituted cyclobutanes
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3004068 |
Cyclobutenes containing two substituted methyl substituents
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2928865 |
Fluorinated tricyclononanes and tetracycloundecanes
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2815362 |
Processes for making trans chrysanthemic acid and related compounds and products therefrom
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3642859 |
Title is not available
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3658879 |
Title is not available
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