Multi-step reaction with 5 steps
1.1: (+)-5-(2’,4’,6’-trimethoxyphenyl)-8,10,10-trimethyl-6-azatricyclo[7.1.1.02,7]undeca-2,4,6-triene 6-oxide; N-ethyl-N,N-diisopropylamine / acetonitrile / 24 h / -40 °C / Inert atmosphere
2.1: triphenylphosphine / tetrahydrofuran / 0.03 h / 0 °C / Inert atmosphere
2.2: 2.5 h / 20 °C / Inert atmosphere
3.1: hydrazine hydrate / tetrahydrofuran / 0.5 h / 20 °C / Inert atmosphere
4.1: sodium hydroxide / dichloromethane; water / 24 h / 20 °C / Inert atmosphere
5.1: copper diacetate; palladium dichloride / methyl orthoacetate / 0.5 h / 20 °C
5.2: 40 °C
With
(+)-5-(2’,4’,6’-trimethoxyphenyl)-8,10,10-trimethyl-6-azatricyclo[7.1.1.02,7]undeca-2,4,6-triene 6-oxide; copper diacetate; hydrazine hydrate; N-ethyl-N,N-diisopropylamine; triphenylphosphine; sodium hydroxide; palladium dichloride;
In
tetrahydrofuran; dichloromethane; methyl orthoacetate; water; acetonitrile;
2.1: Mitsunobu reaction / 2.2: Mitsunobu reaction;
DOI:10.1002/chem.201102716