1,2,4-Triazines in organic synthesis. 9. Synthesis of 3-(3-ethylindol-2-yl)-5,6,7,8-tetrahydroisoquinoline using the fischer reaction under the usual conditions and with microwave irradiation
The nucleophilic substitution of hydrogen in 3-methylthio-1, 2,4-triazine by the carbanions of nitrobutane and 4-nitrobut-1-ene gave oximes, the selective fission of which using sodium dithionite gave ketones in the case of compounds with a saturated carb