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Dow Global Technolgoies LLC

Dow Agrosciences LLC

Julie L Maurer

Gary A Roth

Edward D Daugs

Felipe A Donate

Ronald B Leng

James William Ringer

Karl L Krumel

Larry D Kershner

George J Frycek

Andrei S Merenov

Rebecca J Wachowicz

Jimmy J Tai

Mark Allen Hadd

Jason L Trumble

Ian R King

Thomas A Olmstead

Jeff T Budd

Tim J Adaway

A process comprising reacting a mono- or di-carboxylic acid and/or acid anhydride with a glycol ether in the presence of phosphoric acid to produce a glycol ether ester product having low color and low VOC content.

Process for producing low VOC coalescing aids

Chloropyrimidine compounds, such as 4,6-dichloro-2-ethoxypyrimidine, were prepared in good yield and good purity from the corresponding hydroxypyrimidine compounds in the absence of organic solvents and with a reduced amount of phosphorus oxychloride by carrying out the reaction in the presence of a trialkylamine compound and phosphorus trichloride. The additions of hydroxypyrimidine compound and trialkylamine compound could be made in segments. The chloropyrimidine compounds produced were recovered in an improved manner by adding chlorine to convert the chlorophosphoric acid by-products and phosphorus trichloride to phosphorus oxychloride, diluting the mixture with additional chloropyrimidine compound and removing the phosphorus oxychloride by distillation, combining the residue with water and a base, distilling the trialkylamine compound from the resulting mixture, and removing the aqueous phase.

Chloropyrimidine process

The present invention relates to a new improved, simplified process for the preparation of halo-4-phenoxyquinolines, whereby thionyl chloride is used as the chlorinating agent to prepare the corresponding chloroquinoline intermediate prior to the final coupling reaction, and a single, inert high boiling polyether solvent is used throughout the entire reaction procedure.

Process for the preparation of halo-4-phenoxyquinolines

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Midland, MI, United States of America

Julie L Maurer