Figure 2 | Scientific Reports

Figure 2

From: Synthesis of Structurally Diverse 2,3-Fused Indoles via Microwave-Assisted AgSbF6-Catalysed Intramolecular Difunctionalization of o-Alkynylanilines

Figure 2

Synthesis of tetrahydro-1H-pyrido[4,3-b]indole and tetrahydropyrano[4,3-b]indole by intramolecular difunctionalization[a].

[a]The yields given are isolated yields. DCE = 1,2-dichloroethane, Ts = 4-methylphenylsulfonyl, Ms = methanesulfonyl, MW = microwave. [b]The reaction was conducted with 1a (1 equiv) in the presence of AgSbF6 (10 mol%) in DCE at a MW power of 100 W for 1 h at 80 °C. Then 2k (2 equiv) and CF3COOH (1.5 equiv) were added and the mixture was reacted under the same conditions for 3 h.

Back to article page