๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

ChemInform Abstract: Lewis Base Catalyzed [4 + 2] Annulation of Electron-Deficient Chromone-Derived Heterodienes and Acetylenes.

โœ Scribed by Heiko Dueckert; Vivek Khedkar; Herbert Waldmann; Kamal Kumar


Publisher
John Wiley and Sons
Year
2011
Weight
40 KB
Volume
42
Category
Article
ISSN
0931-7597

No coin nor oath required. For personal study only.

โœฆ Synopsis


Abstract

Electronโ€deficient chromone heterodienes and electronโ€poor acetylenes undergo Lewis base catalyzed [4+2] annulation reactions.


๐Ÿ“œ SIMILAR VOLUMES


Lewis Base Catalyzed [4+2] Annulation of
โœ Dipl.-Chem. Heiko Dรผckert; Dr. Vivek Khedkar; Prof.โ€…Dr. Herbert Waldmann; Dr. Ka ๐Ÿ“‚ Article ๐Ÿ“… 2011 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 300 KB

## Abstract Lewis base catalyzed [4+2] annulation reactions between electronโ€deficient chromone oxaโ€ and azadienes and acetylene carboxylates provide tricyclic benzopyrones inspired by natural products. An asymmetric synthesis of the tricyclic benzopyrones was developed by using modified cinchona a