Die Synthese von 2,3,4,5‐1<i>H</i>‐Tetrahydroimidazo[2,1‐<i>b</i>]chinazolin‐2,5‐dionen und analogen 2,3,4,5‐1<i>H</i>‐Tetrahydroimidazo[1,2‐<i>a</i>]thieno[2,3‐<i>d</i>] (bzw. [3,2‐<i>d</i>])‐pyrimidin‐2,5‐dionen

Abstract

The Synthesis of 2,3,4,5‐1 H ‐Tetrahydroimidazo[2,1‐ b ]quinazolin‐2,5‐diones and analogous 2,3,4,5‐1 H ‐Tetrahydroimidazo[1,2‐ a ]thieno[2,3‐ d ] (or [3,2‐ d ])‐pyrimidin‐2,5‐diones The syntheses of various imidazo [2, 1‐ b ]quinazolinediones and their thiophene analogs are described.