Novel synthesis of 5-methyl-5,10-dihydroindolo[3,2-b]indoles by Pd-catalyzed C–C and two-fold C–N coupling reactions?
Organic & Biomolecular Chemistry Pub Date: 2014-10-22 DOI: 10.1039/C4OB01723D
Abstract
A series of 5,10-dihydroindolo[3,2-b]indoles was successfully prepared by an efficient two-step strategy based on site-selective Pd-catalyzed cross-coupling reaction with N-methyl-2,3-dibromoindole and subsequent cyclization by two-fold Pd-catalyzed C–N coupling with amines. The products show a strong fluorescence.
![Graphical abstract: Novel synthesis of 5-methyl-5,10-dihydroindolo[3,2-b]indoles by Pd-catalyzed C–C and two-fold C–N coupling reactions](http://scimg.chem960.com/usr/1/C4OB01723D.jpg)
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Journal Name：Organic & Biomolecular Chemistry
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CAS no.: 89640-58-4
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