the first example of the synthesis of carbazoles via oxidative cyclization of 3-alkenylindoles with styrenes under visible light. The irradiation of a catalytic amount of [Ir(dtbbpy)(ppy)2][PF6] as the photocatalyst enables various 3-alkenylindoles and styrenes to undergo tandem [2 + 2] cycloaddition/rearrangement, thereby leading to carbazole derivatives in good to excellent yields under aerobic conditions
Pindur, Ulf; Erfanian-Abdoust, Houshang, Liebigs Annalen der Chemie, 1990, # 8, p. 771 - 773
作者:Pindur, Ulf、Erfanian-Abdoust, Houshang
DOI:——
日期:——
PINDUR, ULF;ERFANIAN-ABDOUST, HOUSHANG, LIEBIGS ANN. CHEM.,(1990) N, C. 771-773
作者:PINDUR, ULF、ERFANIAN-ABDOUST, HOUSHANG
DOI:——
日期:——
Pd(II)-Catalyzed CH Activation of Styrylindoles: Short, Efficient, and Regioselective Synthesis of Functionalized Carbazoles
作者:Rakesh K. Saunthwal、Monika Patel、Sonu Kumar、Abhinandan K. Danodia、Akhilesh K. Verma
DOI:10.1002/chem.201503657
日期:2015.12.14
A novel PdII‐catalyzed approach for the direct synthesis of highly functionalized carbazoles from unprotected styrylindoles has been developed. The reaction features a variety of olefin substrates, which are readily switchable by subtle tuning of the reaction conditions. Investigations of the mechanism suggest that the CHactivation proceeds via enamine formation.