An Efficient, One-Pot and new Synthesis of 2-amino-12H-spiro[indolo[1,2-b]quinazoline]pyrano-3-carbonitril
Subject Areas :Gholam Hossein Mahdavinia 1 , Afsaneh Alamdar 2
1 - Department of Chemistry, Marvdasht Branch, Islamic Azad University, Marvdasht, Iran
2 - Department of Chemistry, Arak Science & Research Branch, Islamic Azad University, Arak, Iran
Keywords: One-pot, Spiropyran, Tryptanthrin, Alkyl malonates, Spiroindoloquinazoline,
Abstract :
An efficient synthesis of spiroindolopyranoquinazolines has been achieved in good yields by using one-pot, three-component condensation of alkyl malonates, tryptanthrin, and active methylene compounds in the presence of DABCO as organocatalyst in CH3CN at reflux