ChemInform Abstract: Synthesis of Thiopyranylidene Ketones and Benzylideneindanones as Inhibitors for Human Platelet Aggregation.

Abstract

The thiopyranthione (I) reacts with the bromo ketones (II) to form the thiopyrylium salts (III) which are converted to the thiopyranylidene ketones (IV) by heating in pyridine.