[4 + 2]-Cycloaddition Reactions between beta-Acceptor-Substituted Enamines and 2-Vinylindole Radical Cations Acting as Hetero-Dienes

Synthesis of tetrahydrocarbazoles through a radical cation [4+2] cycloaddition reaction of 2-vinylindoles

A redox umpolung strategy for the synthesis of complex tetrahydrocarbazoles is reported. The reaction involves a visible light promoted radical cation [4+2] cycloaddition between 2-vinylindoles and conjugated alkenes that proceeds with good yields and diastereoselectivity.

Chemistry of 2-Vinylindoles: Synthesis and Applications

As a class of compounds, 2-vinylindoles have demonstrated a wide range of biological properties. Due to the general interest in these synthons, new divergent protocols of chemical synthesis have been...

Photochemically Catalysed Diels–Alder Reaction of N-arylimines by 2,4, 6-triphenylpyrylium Salt: Synthesis of Furo- and Pyranoquinoline Derivatives

Photochemically promoted Diels–Alder reactions of N-arylimines with 2,3-dihydrofuran and 3,4-dihydro-2 H-pyran were achieved by using 2,4,6-triphenylpyrylium tetrafluoroborate as a catalyst to produce the corresponding furo- and pyranoquinolines in high yield.

Goniomitine: an overview on the chemistry of this indole alkaloid

This paper reports an overview on the chemistry of the indole alkaloid goniomitine focusing, mainly, on the methods of synthesis related to this natural product and analogs.

Stille cross-coupling reaction of an alpha-stannyl enamide

The Stille cross-coupling reaction of an N-tosyl alpha-stannyl enamine is clearly exemplified for the first time with a wide range of halogeno derivatives. This gives access to functionalized alpha-substituted enamines in fair yields.

Photochemically induced electron transfer (PET) catalyzed radical cyclization: a practical method for inducing structural changes in peptides by formation of cyclic amino acid derivatives

A new radical cyclization reaction of unsaturated amino acid derivatives is presented. The reaction is induced by photoelectron transfer (PET) catalysis and proceeds, in comparison to commonly applied methods, under mild, nonoxidizing, and nontoxic conditions in neutral medium. This type of radical cyclization reaction can be used in peptide chemistry for inducing structural changes in peptides.