Trifluoromethanesulfonanilides, and their production and use.

摘要

A herbicidal composition which comprises as an active ingredient a trifluormethanesulfonanilide of the formula:
<Chemistry id="chema01" num="0001"><Image id="ia01" he="26" wi="85" file="IMGA0001.TIF" imgContent="chem" imgFormat="TIFF" inline="no" /></Chemistry>wherein R<Sub>1</Sub> and R<Sub>2</Sub> are the same or different and are each independently a hydrogen atom, a halogen atom or a C<Sub>1</Sub>-C<Sub>4</Sub> alkyl group, a C<Sub>3</Sub>-C<Sub>6</Sub> cycloalkyl group, a C<Sub>3</Sub>-C<Sub>4</Sub> alkenyl group, a C<Sub>3</Sub>-C<Sub>5</Sub> alkynyl group, a C<Sub>1</Sub>-C<Sub>4</Sub> alkoxy group, a C<Sub>6</Sub>-C<Sub>7</Sub> aralkyl group, a C<Sub>1</Sub>-C<Sub>4</Sub> alkoxy(C<Sub>1</Sub>-C<Sub>4</Sub>)alkyl group or a C<Sub>2</Sub>-C<Sub>4</Sub> acyl group or taken together with the nitrogen atom to which they are attached form a morpholino group and X is a hydrogen atom a C<Sub>2</Sub>-C<Sub>4</Sub> acyl group, provided that R<Sub>3</Sub> and R<Sub>4</Sub> are not both hydrogen.