Target cum flexibility: synthesis of indolo[1,2-b]isoquinoline derivatives via cobalt-catalyzed [2+2+2] cyclotrimerization

TitleTarget cum flexibility: synthesis of indolo[1,2-b]isoquinoline derivatives via cobalt-catalyzed [2+2+2] cyclotrimerization
Publication TypeJournal Article
Year of Publication2015
AuthorsSwami, A, Ramana, CV
JournalSynlett
Volume26
Issue5
Pagination604-608
Date PublishedMAR
ISSN0936-5214
Keywords2-b]-isoquinoline, cobalt, Indole, indolo[1, Pyridine, [2+2+2] cyclotrimerization
Abstract

A modular approach for the synthesis of small molecules having the unnatural 6,11-dihydroindolo[1,2-b]isoquinoline tetracyclic core has been documented. An acid-catalyzed Friedel-Crafts-type C2-alkylation of N-propargyl indole with a suitably activated alkynol has been used to prepare the key indole-derived diynes. The cobalt-catalyzed [2+2+2] cyclotrimerization of these diynes has been studied with various internal/terminal alkynes and with nitriles.

DOI10.1055/s-0034-1379950
Type of Journal (Indian or Foreign)

Foreign

Impact Factor (IF)

2.323

Divison category: 
Organic Chemistry