ChemInform Abstract: Heterocyclic Systems Containing Bridgehead Nitrogen Atom: Part 77. Syntheses of Thiazolo(2,3-b)benzo(f)quinazolin-1(2H)-one and (1,3) Thiazino(2,3-b)benzo(f)quinazolin-1(2H)-one, Two Novel and Hitherto Unknown Heterocyclic Systems.
Abstract
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ChemInform Abstract
Compounds (VII) and (XI) are synthesized by condensation reactions as novel heterocyclic systems. The condensation of compound (V) with chlorocarboxylic acids proceeds regioselectively yielding the largest resonance-stabilized system.