ChemInform Abstract: A Rapid Assembly of Furo[3,4‐b]‐ and Pyrrolo[3,4‐b]carbazolones by Domino Wittig Diels—Alder Reaction.

Abstract

A Rapid Assembly of Furo[3,4-b]-and Pyrrolo[3,4-b]carbazolones by DominoWittig Diels-Alder Reaction. -Reaction of indolecarboxaldehydes (I) and (V) with phosphoranes (II) provides regioisomeric lactones as mixtures of cis-and trans-isomers. The following oxidation with DDQ yields the corresponding carbazoles. -(TORNEY, P.; PATRE, R.; TILVE*, S.; Synlett 2011, 5, 639-642, http://dx.doi.org/10.1055/s-0030-1259695 ; Dep. Chem., Goa Univ., Goa 403 206, India; Eng.) -Mais 26-123

Tandem-, Domino- and One-Pot Reactions Involving Wittig- and Horner-Wadsworth-Emmons Olefination

“…A typical such cycloaddition is [4+2]-cycloaddition, such as the classical Diels Alder reaction, which can be performed both inter- [69,124] and intramolecularly [125][126][127][128][129][130][131][132] in tandem with a Wittig-reaction.…”