Monsanto Company

Gencorp, Inc.

Monsanto Technology LLC

Reitz, David B.

Pulwer, Mitchell J.

Miller, William H.

William H Miller

Mitchell J Pulwer

David B Reitz

David Louis Brown

James F Stevenson

Daniel Patrick Walker

Charles R Graham

Terry M Balthazor

William D Taylor

John JianShi Wang

Robert L Brown

William Abraham

Thomas J Richard

Jeffrey Alan Graham

David E Baxter

Beth Jo Calabotta

Donald L Fields, Jr

Sherrol L Baysdon

Brent D Massmann

Todd J Johnson

Todd A England

Thomas E Neumann

Provided herein are processes for the preparation of heteroaryl carboxylic acids.

Processes for the preparation of heteroaryl carboxylic acids

Provided herein are processes for the preparation of 2-thiophenecarbonyl chloride, which is useful, for example, in the preparation of 3,5-disubstituted-1,2,4-oxadiazoles, such as tioxazafen (3-phenyl-5-(2-thienyl)-1,2,4-oxadiazole).

Processes for the preparation of 2-thiophenecarbonyl chloride

Provided herein are processes for the preparation of 3,5-disubstituted-1,2,4-oxadiazoles and salts thereof comprising reacting a N-hydroxyamidine with an acyl chloride in a reaction mixture comprising a water-immiscible organic solvent and an aqueous base at relatively low reaction temperatures.

Processes for the preparation of 3,5-disubstituted-1,2,4-oxadiazoles

A process for preparing a dry pesticidal composition including a glyphosate component comprising a water-soluble salt of glyphosate acid, a dicarboxylate component and optionally an adjuvant component. According to the process of the present invention, a glyphosate component is combined with a dicarboxylate component and optionally an adjuvant component to form an enhanced pesticidal composition. The glyphosate component and/or the dicarboxylate component may be combined in their salt form or either or both may be combined in acid form and reacted in the mixture with a base component to form the corresponding salt.

Process for the preparation of a dry pesticidal composition containing a dicarboxylate component

The invention provides a process for preparing aminophosphonic acids comprising contacting an aminophosphonate ester with a base in the presence of a hydrolysis facilitator selected from the group consisting of CO.sub.2, CS.sub.2 and COS. In one embodiment, the aminophosphonate ester is first prepared by contacting an amine, trialkylphosphite, base and formaldehyde.

Carbon dioxide assisted hydrolysis of aminophosphonates

A metering apparatus 10 for continuously supplying a specified amount of fluid material F to a desired surface. The apparatus 10 includes a reservoir 14 for maintaining a supply of fluid material, a housing 16 having a central bore 22 therethrough, a receiving opening 24 for receiving fluid material from the reservoir 14 to central bore 22, and an exit opening 26 through which fluid material exits the housing 16. A rotatable screw member 28 is provided engaged through the housing 16 within said central bore 22, and a driver 37 engaged with the screw member for rotating the screw member within the bore at between approximately 1 rpm to 2,700 rpm, and preferably approximately 1,750 rpm, in order to continuously supply fluid to the exit opening 26. At this operating level, fluid material is provided from the exit opening 26 at a flow rate of between approximately 1 to 23 grams/min, and in a thickness of approximately 0.001 to 8 mils. The reservoir 14 includes a tank 50 for the fluid material, and a motor 68 for agitating the fluid during operation of the apparatus 10. The housing 16 is secured adjacent the tank 50 to provide the fluid material from the tank to the receiving opening 24.

Metering apparatus having a screw member

An assembly and method for processing extrudate material containing curves or angles into a predetermined overall configuration, including having a die assembly for an extruder which assembly controls the cross-sectional shape or profile of the extrudate and selectively varies the path of the extrudate as it leaves the die assembly. A support member is provided which has a predetermined overall configuration and profile to receive the extrudate and maintain its configuration. A driving apparatus is also provided for continuously driving either the support member or the die assembly relative to the other while the extrudate is being received in the support member, and until the entire predetermined overall configuration has been completed. The path of the extrudate is variably directed by the die assembly as it leaves the extruder in coordination with the relative speeds involved to conform the extrudate configuration to the predetermined overall configuration of the support member.

Handling system and method for curved extrusions

A die assembly (10) for controlling extrudate profile dimension. The die assembly includes a die block (12) having a feed passage (16) for movably supporting a diverter member (13) within the die block, and first and second die block passages (18, 20). The diverter member (13) includes a diverter passage (32) and first and second feed openings (34, 36) interconnected by the diverter passage. One of the first or second feed openings (34, 36) has a larger diameter than the other of the first or second feed openings. The diverter member (13) is movable with respect to the die block (12) for directing extrudate flow via the diverter passage (32) through the second die block passage (20), to thereby vary the profile dimension of the extrudate exiting the die block. The die block (12) additionally includes a disposal passage (22). Movement of the diverter member (13) within the die block is provided between a first position providing communication between the first and second die block passages ( 18, 20), and a second position providing communication between the first die block passage (18) and the disposal passage (22). A die plate (14) may be readily changed by directing extrudate flow via the disposal passage (22).

Die assembly control

An improved process for dehydrating dialkyl 2,6-bis(trifluoromethyl)-2,6-dihydroxy-4-(alkyl)-3,5-piperidinedicarboxyla tes using concentrated sulfuric acid essentially in the absence of a solvent to prepare the corresponding dialkyl 2,6-bis(trifluoromethyl)dihydro-4-(alkyl)-3,5-pyridinedicarboxylates.

Process for the dehydration of dihydroxypiperidinedicarboxylates

Described herein is a process for preparation of substituted pyridine dicarboxylate compounds.

Process for preparation of fluoromethyl-substituted pyridine

A process for dehydrofluorination of a 2,6-(bis)trifluoromethyl-dihydropyridine-3,5-dicarbothioic acid ester.

A process for dehydrofluorination of a 2,6-(bis) trifluoromethyl-dihydropyridine-3,5-dicarbothioic acid ester.

A method is described for bending an extrudate exiting an opening in an die assembly without substantially changing the cross sectional shape of the extrudate. The method includes the step of channeling the flow of extrudate from an extruder through a flow channel and the opening in the die. The opening in the die is rotated with respect to the feed opening to vary the length of the flow channel and pathways along which extrudate flows thereby variably directing flow of the extrudate as the extrudate exits the opening in the die.

Growing community of inventors

Glendale, MO, United States of America

William H Miller