Uniroyal Chemical Company, Inc.

Crompton Co./cie

Crompton Co./ciie

Walter G Brouwer

Ewa Maria Osika

Mark A Dekeyser

Hoi K Lai

Sheldon B Park

Gaik-Lean Chee

Kenneth W Seebold, Jr

A fungicidally active compound of the formula: wherein   

Fungicidal phenoxyphenylhydrazine derivatives

A method is disclosed for the preparation of benzo[b]thiophenecarbodithioic esters of the formula:wherein R is alkyl, Ris hydrogen, halogen, or alkyl, R, R, R, and Rare independently selected from the group consisting of hydrogen, halogen, alkyl, alkoxy, alkylthio, trifluoromethyl, cyano, and aryl,wherein said method comprises reacting an equivalent of an S-thiol ester of the formula:with one-third of an equivalent of PS, 2 equivalents of at least one alkali metal carbonate, about 2.5 mole percent of a phase transfer catalyst, and a catalytic amount of water in hot toluene.

Utilization of phosphorus pentasulfide in thionylations using phase transfer catalysis

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Glasgow, United Kingdom

Walter G Brouwer