Alternating Iodonium-Mediated Reaction Cascades Giving Indole- And Quinoline-Containing Polycycles
摘要:
A simple two-step convergent protocol gives direct access to synthetic intermediate A from ortho-iodoanilines. Intermediate A can be treated with NIS in CH(2)Cl(2) to induce novel iodonium mediated domino reaction cascade, which provides direct access to ring-fused indole compounds B. Simply by changing the reaction conditions, this protocol can be directed down an alternative domino reaction cascade to give various ring fused quinoline compounds C.
Alternating Iodonium-Mediated Reaction Cascades Giving Indole- And Quinoline-Containing Polycycles
摘要:
A simple two-step convergent protocol gives direct access to synthetic intermediate A from ortho-iodoanilines. Intermediate A can be treated with NIS in CH(2)Cl(2) to induce novel iodonium mediated domino reaction cascade, which provides direct access to ring-fused indole compounds B. Simply by changing the reaction conditions, this protocol can be directed down an alternative domino reaction cascade to give various ring fused quinoline compounds C.
Scaffold-Divergent Synthesis of Ring-Fused Indoles, Quinolines, and Quinolones via Iodonium-Induced Reaction Cascades
作者:Rosliana Halim、Luigi Aurelio、Peter J. Scammells、Bernard L. Flynn
DOI:10.1021/jo400125p
日期:2013.5.17
N-(2-lodophenyl)imines A are readily formed from Schiff's base condensation of 2-iodoanilines with carbonyls and ketals. These imines provide useful substrates in scaffold-divergent synthesis through the attachment of an alkyne (Songashira coupling or acyl substitution of a Weinreb amide) followed by an iodonium-induced reaction cascade to give ring-fused indoles B, quinolines C, or quinolones D depending on the reaction conditions employed.
Alternating Iodonium-Mediated Reaction Cascades Giving Indole- And Quinoline-Containing Polycycles
作者:Rosliana Halim、Peter J. Scammells、Bernard L. Flynn
DOI:10.1021/ol800202u
日期:2008.5.1
A simple two-step convergent protocol gives direct access to synthetic intermediate A from ortho-iodoanilines. Intermediate A can be treated with NIS in CH(2)Cl(2) to induce novel iodonium mediated domino reaction cascade, which provides direct access to ring-fused indole compounds B. Simply by changing the reaction conditions, this protocol can be directed down an alternative domino reaction cascade to give various ring fused quinoline compounds C.