A General Large Scale Synthesis of 2-Alkyl-7-methoxyindoles
作者:Bang-Chi Chen、John Hynes, Jr.,、Chennagiri R. Pandit、Rulin Zhao、Amanda P. Skoumbourdis、Hong Wu、Joseph E. Sundeen、Katerina Leftheris
DOI:10.3987/com-01-9162
日期:——
A general method has been developed for the large scale synthesis of 2-alkyl-7-methoxyindoles and analogs. This method involves an efficient preparation of the key intermediates, 1-(2-nitroaryl)-2-nitroalkanols and 1-(2-nitroaryl)-2-nitroalkenes, and affords 2-alkyl-7-methoxyindoles and analogs in 3 steps with good overall yields.
Synthesis of Indoles from o,β-Dinitrostyrenes via Indium/Acetic Acid-Mediated Reductive Heterocyclizations
作者:Byeong Hyo Kim、Geunsoo Lee、Jaehwan Choi、Byung Min Lee
DOI:10.3987/com-12-12605
日期:——
Reductive heterocyclization reactions of various 1-nitro-2-(2-nitroaryl)ethenes to indoles were investigated. In the presence of indium/AcOH in toluene or benzene, 1-nitro-2-(2-nitroaryl)ethenes were cyclized to give corresponding indoles in good yields.
Kalir,A. et al., Israel Journal of Chemistry, 1967, vol. 5, p. 129 - 136