Beschreibung:
<jats:p><jats:bold>Reactions of Phenyl 4‐Chromone‐3‐sulfonate with Amidines</jats:bold></jats:p><jats:p>The amidines <jats:bold>2a</jats:bold> – <jats:bold>e</jats:bold> undergo with phenyl 4‐chromone‐3‐sulfonate (<jats:bold>1</jats:bold>) a ring transformation to give the benzoxathiino‐pyrimidines <jats:bold>6a</jats:bold> – <jats:bold>e</jats:bold>.</jats:p>