Multi-step reaction with 6 steps
1.1: lithium diisopropyl amide; N,N,N,N,N,N-hexamethylphosphoric triamide / tetrahydrofuran / 0.5 h / 0 °C / Inert atmosphere
1.2: 0 - 22 °C
2.1: tricyclohexylphosphine[1,3-bis(2,4,6-trimethylphenyl)-4,5-dihydroimidazol-2-ylidine][benzylidene]ruthenium(II) dichloride / benzene / Inert atmosphere; Reflux
2.2: 22 °C / Inert atmosphere
3.1: n-butyllithium / diethyl ether; hexane / 0.33 h / -78 °C / Inert atmosphere
3.2: 1.5 h / -78 - 22 °C / Inert atmosphere
3.3: Inert atmosphere
4.1: 3-chloro-benzenecarboperoxoic acid / dichloromethane / 2 h / 0 °C / Inert atmosphere
5.1: dichloromethane / 2 h / 0 °C / Inert atmosphere
6.1: disodium tetrasulfide / dimethyl sulfoxide / 6 h / Inert atmosphere
6.2: 0.5 h / Inert atmosphere
With
tricyclohexylphosphine[1,3-bis(2,4,6-trimethylphenyl)-4,5-dihydroimidazol-2-ylidine][benzylidene]ruthenium(II) dichloride; N,N,N,N,N,N-hexamethylphosphoric triamide; disodium tetrasulfide; n-butyllithium; 3-chloro-benzenecarboperoxoic acid; lithium diisopropyl amide;
In
tetrahydrofuran; diethyl ether; hexane; dichloromethane; dimethyl sulfoxide; benzene;
DOI:10.1021/ja310778t