Multi-step reaction with 6 steps
1: sodium ethanolate / ethanol / 2.5 h / -10 - 20 °C
2: 5,5-dimethyl-1,3-cyclohexadiene / 2 h / 120 °C
3: copper diacetate; triethylamine; pyridine / 21 h / 20 °C / Molecular sieve
4: sodium hydroxide / tetrahydrofuran; ethanol / 2.5 h / 65 - 75 °C
5: N-ethyl-N,N-diisopropylamine; N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate / N,N-dimethyl-formamide / 30 h / 20 °C
6: copper(l) chloride / N,N-dimethyl-formamide / 0.75 h / 20 - 220 °C / Microwave irradiation
With
pyridine; sodium ethanolate; copper diacetate; triethylamine; N-ethyl-N,N-diisopropylamine; N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate; copper(l) chloride; sodium hydroxide;
In
tetrahydrofuran; 5,5-dimethyl-1,3-cyclohexadiene; ethanol; N,N-dimethyl-formamide;
DOI:10.1016/j.bmc.2013.05.067