Novel photoreaction of N-alkyl(p-methoxyphenyl)arylamines assisted by protic acids.
A novel photochemical transformation from N-alkyl(p-methoxyphenyl)arylamines (1a-1f) to 1,2,4-trihydro(4aH)-carbazol-3-ones (2a-2f) is reported with the assistance of protonation at the dihydrocarbazole intermediate followed by sequential formal [1,5]hydrogen, [1,3]hydrogen shifts and proton assisted hydrolysis.
Department of Chemistry, National Taiwan University, Taipei, Taiwan, R.O.C.
Jinn-Hsuan
JH
Ho
Tong-Ing
TI
Ho