143360-93-4Relevant articles and documents
Sequential Sonogashira/intramolecular aminopalladation/cross-coupling ofortho-ethynyl-anilines catalyzed by a single palladium source: rapid access to 2,3-diarylindoles
Wang, Jiwei,Wang, Gendi,Cheng, Xiang,Liu, Ye,Zhang, Jun
, p. 1329 - 1333 (2021/02/26)
We have developed a practical and efficient one-pot protocol for the synthesis of 2,3-diarylindolesviaPd-catalyzed bis-arylative cyclization of variouso-ethynylanilines with aryl iodides. Mechanism studies showed that a Pd-catalyzed Sonogashira reaction took place firstly, giving an internal alkyne intermediate, which subsequently underwent intramolecular aminopalladation/cross-coupling to give access to 2,3-diarylindoles. The present methodology exhibits a broad substrate scope, producing various 2,3-diaryl indoles bearing two different aryl groups.
Investigation of the intermolecular Pauson-Khand reaction of various 1-alkynes with cyclic exo-methylene compounds
Ishizaki, Miyuki,Zyo, Mieko,Kasama, Yasuhiro,Niimi, Yuka,Hoshino, Osamu,Nishitani, Kiyoshi,Hara, Hiroshi
, p. 2259 - 2271 (2007/10/03)
Intermolecular Pauson-Khand reaction of various 1-alkynes with 4-exo-methylenepiperidine and -cyclohexane derivatives to give corresponding spirocyclopentenones was investigated. The reaction of m- and p-substituted arylalkynes furnished corresponding spirocyclic compounds in good yields, while that of o-substituted arylalkynes and 1-hexyne proceeded in nil to moderate yield.
C(2)-(α-Mannosyl)indole: The pivotal intermediate towards the natural C-Glycopeptides
Hassan,Spies,Bredenkamp
, p. 1589 - 1598 (2007/10/03)
Two different approaches were investigated to prepare the unusual modified peptide C(2)-mannosylated indole residue. Direct glycosylation of 2-metallated indoles or 2-trimethylsilylindole derivative by reaction with perbenzylated α-D-mannopyranosyl bromid