The photochemical synthesis of benzo[a]-carbazoles from easily synthesizable 2-aryl-3-(1-tos-ylalkyl)indoles is presented. Irradiation of these substrates in polar aprotic solvents (acetone or THF) gives selectively the target products in satisfactory yields. This versatile and efficient procedure promises to be a useful alternative to the multistep strategies reported in the literature.
A Photochemical Route to Benzo[a]carbazoles via Domino Elimination/Electrocyclization of 2-Aryl-3-(1-tosylalkyl)indoles
PALMIERI, Alessandro;PETRINI, Marino;BALLINI, Roberto;
2013-01-01
Abstract
The photochemical synthesis of benzo[a]-carbazoles from easily synthesizable 2-aryl-3-(1-tos-ylalkyl)indoles is presented. Irradiation of these substrates in polar aprotic solvents (acetone or THF) gives selectively the target products in satisfactory yields. This versatile and efficient procedure promises to be a useful alternative to the multistep strategies reported in the literature.File in questo prodotto:
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