Abstract
The behavior of 4-azidocoumarin-3-carboxaldehyde ( 1 ) towards certain sulfur reagents such as isothiocyanates ( 2a–c ), thionyl chloride, Lawesson's reagent (LR, 3 ), and phosphorus pentasulfide as well as towards primary amines such as glycine ( 4 ) and towards anthranilic acid ( 5 ) was investigated. The structures of the new products were attested by suitable analytical and spectroscopic measurements.
Dedicated to Professor Marian Mikołajczyk, CBMiM PAN in Łódź, Poland, on the occasion of his 70th birthday.