Sequential N‐Heterocyclic Carbene‐Catalyzed Reactions of Enals and Cyclic Aryldiene‐1, 3‐Diones: Synthesis of Tricyclic Chromenones and Related Compounds. Issue 12 (24th October 2016)

• Record Type: Journal Article
• Authors: Krishnan, Jagadeesh; Mathew, Sneha; Jayaprakash, P. Anjana; Sasidhar, B. S.; Mayadevi, T. S.; Suresh, E.; Nair, Vijay
• Is Part Of: Asian journal of organic chemistry. Volume 5:Issue 12(2016)
• Page Start: 1447
• Page End: 1451
• Publication Date: 2016-10-24
• Subjects: coumarin derivatives -- cyclic aryldiene-1, 3-diones -- N-heterocyclic carbenes -- organocatalysis -- tricyclic chromenones; Chemistry, Organic -- Periodicals; Organic compounds -- Synthesis -- Periodicals; 547.005
• DOI: 10.1002/ajoc.201600419
• Languages: English
• ISSNs: 2193-5807

Abstract

Abstract: N‐Heterocyclic carbene (NHC)‐catalyzed synthesis of highly functionalized pyrano[3, 2‐ c ]chromene‐2, 5‐dione derivatives, pyrano[3, 2‐ c ]quinoline‐2, 5(6 H )‐dione derivatives, and pyrano[4, 3‐ b ]pyran‐2, 5‐dione derivatives with potential biological activities is reported. The reaction occurs through a Knoevenagel condensation and NHC‐catalyzed enolate addition in one pot. Abstract : Tricyclic chromenone synthesis : N‐Heterocyclic carbene (NHC)‐catalyzed synthesis of highly functionalized pyrano[3, 2‐ c ]chromene‐2, 5‐dione derivatives, pyrano[3, 2‐ c ]quinoline‐2, 5(6 H )‐dione derivatives, and pyrano[4, 3‐ b ]pyran‐2, 5‐dione derivatives with potential biological activities is reported. The reaction occurs through a Knoevenagel condensation and NHC‐catalyzed enolate addition in one pot.