Method of pixel to vector conversion in an automatic picture coding system.

摘要

Sulfonylurea derivatives of formula
<Chemistry id="chema01" num="0001"><Image id="ia01" he="21" wi="21" file="IMGA0001.TIF" imgContent="chem" imgFormat="TIFF" inline="no" /></Chemistry>wherein
<UnorderedLists id="ula01" listStyle="none"><ListItem>J is a condensed ring aromatic group;</ListItem><ListItem>W is 0 or S;</ListItem><ListItem>R is H or CH<Sub>3</Sub>; and</ListItem><ListItem>A is mono- or bicyclic heterocyclic group, e.g. pyrimidine or triazine, and their agriculturally suitable salts,</ListItem><ListItem>exhibit herbicidal activity. Some also show plant growth regulant activity.</ListItem></UnorderedLists>

The compounds may be formulated for agricultural use in conventional manner. They may be made by a variety of synthetic routes, e.g. by reacting an aromatic sulfonylisocyanate or sulfonylisothiocyanate JSO<Sub>2</Sub>NCW with the appropriate heterocyclic amine.