Patent classifications
C07C271/22
PICOLINAMIDE COMPOUNDS WITH FUNGICIDAL ACTIVITY
This disclosure relates to picolinamides of Formula I and their use as fungicides.
##STR00001##
PICOLINAMIDE COMPOUNDS WITH FUNGICIDAL ACTIVITY
This disclosure relates to picolinamides of Formula I and their use as fungicides.
##STR00001##
PREPARATION METHOD FOR GLUFOSINATE
A preparation method for glufosinate ammonium or a salt thereof, an enantiomer thereof, or mixtures of the enantiomer thereof in all ratios, comprising reacting a compound of formula (II) or a salt, an enantiomer, or mixtures of the enantiomer in all ratios with one or more compounds of formula (III) or mixtures thereof.
##STR00001##
METHODS, PROCESSES, AND COMPOSITIONS FOR IMPROVED PREPARATION OF HU308 AND HU433
Disclosed herein are methods, processes and compositions for preparing a compound of formula 8: (8), and formula 18: (18). The methods and processes comprise performing a first allylic oxidation, a protection reaction, a second allylic oxidation, a reduction reaction, performing an acid-catalyzed coupling reaction, a methylation reaction and a deprotection reaction. Disclosed herein are methods, processes and compositions for enantioselectively preparing compounds of formulae 8 and 18. Also disclosed herein are compositions comprising compounds of formulae 8, 18 and/or intermediates and/or starting material thereof.
##STR00001##
METHODS, PROCESSES, AND COMPOSITIONS FOR IMPROVED PREPARATION OF HU308 AND HU433
Disclosed herein are methods, processes and compositions for preparing a compound of formula 8: (8), and formula 18: (18). The methods and processes comprise performing a first allylic oxidation, a protection reaction, a second allylic oxidation, a reduction reaction, performing an acid-catalyzed coupling reaction, a methylation reaction and a deprotection reaction. Disclosed herein are methods, processes and compositions for enantioselectively preparing compounds of formulae 8 and 18. Also disclosed herein are compositions comprising compounds of formulae 8, 18 and/or intermediates and/or starting material thereof.
##STR00001##
Process for preparing diisocyanates based on lysine
The invention relates to a process for preparing a diisocyanate of the formula (A) ##STR00001## where R is selected from the group consisting of alkyl, aryl, and combinations thereof, comprising the following process steps in the indicated order; 1) providing an intermediate of the formula (B) with a process using lysine and urea ##STR00002## and where R and each R′ are independently selected from the group consisting of alkyl, aryl, and combinations thereof; and 2) thermolytic cleavage of the intermediate of the formula (B), thereby affording the diisocyanate of the formula (A),
and also to the diisocyanate directly prepared therewith.
Process for preparing diisocyanates based on lysine
The invention relates to a process for preparing a diisocyanate of the formula (A) ##STR00001## where R is selected from the group consisting of alkyl, aryl, and combinations thereof, comprising the following process steps in the indicated order; 1) providing an intermediate of the formula (B) with a process using lysine and urea ##STR00002## and where R and each R′ are independently selected from the group consisting of alkyl, aryl, and combinations thereof; and 2) thermolytic cleavage of the intermediate of the formula (B), thereby affording the diisocyanate of the formula (A),
and also to the diisocyanate directly prepared therewith.
SUBSTITUTED MONO- AND POLY-PHENYL-CORE MONOMERS AND POLYMERS THEREOF FOR VOLUME BRAGG GRATINGS
The disclosure provides recording materials including mono- or poly-phenyl-core derivatized monomers and polymers for use in volume Bragg gratings, including, but not limited to, volume Bragg gratings for holography applications. Several structures are disclosed for mono- or poly-phenyl-core derivatized monomers and polymers for use in Bragg gratings applications, leading to materials with higher refractive index, low birefringence, and high transparency. The disclosed mono- or poly-phenyl-core derivatized monomers and polymers thereof can be used in any volume Bragg gratings materials, including two-stage polymer materials where a matrix is cured in a first step, and then the volume Bragg grating is written by way of a second curing step of a monomer.
SUBSTITUTED MONO- AND POLY-PHENYL-CORE MONOMERS AND POLYMERS THEREOF FOR VOLUME BRAGG GRATINGS
The disclosure provides recording materials including mono- or poly-phenyl-core derivatized monomers and polymers for use in volume Bragg gratings, including, but not limited to, volume Bragg gratings for holography applications. Several structures are disclosed for mono- or poly-phenyl-core derivatized monomers and polymers for use in Bragg gratings applications, leading to materials with higher refractive index, low birefringence, and high transparency. The disclosed mono- or poly-phenyl-core derivatized monomers and polymers thereof can be used in any volume Bragg gratings materials, including two-stage polymer materials where a matrix is cured in a first step, and then the volume Bragg grating is written by way of a second curing step of a monomer.
Manufacture of 4,5,6,7-tetrahydroisoxazolo[5,4-c]pyridin-3-ol
The present invention relates to a process for synthesis of 4,5,6,7-tetrahydroisoxazolo[5,4-c]pyridin-3-ol abbreviated THIP, having the INN name gaboxadol, starting from pyrrolidin-2-one. The process comprises a new direct process to obtain the intermediate dimethyl 5-hydroxy-3,6-dihydropyridine-1,4(2H)-dicarboxylate or the intermediate diethyl 5-hydroxy-3,6-dihydropyridine-1,4(2H)-dicarboxylate.