Multi-step reaction with 6 steps
1: 90 percent / <(S,S)-bis(2-hydroxy-3,5-bis(tert-butyl)benzylidene)cyclohexane-1,2-diamine>cobalt(III) acetate, H2O / various solvent(s) / 0 - 20 °C
2: 1.) CSA, 2.) DIBALH / 1.) CH2Cl2, 2.) CH2Cl2, -78 deg C
3: TEMPO, NaOCl, NaBr, NaHCO3 / toluene; ethyl acetate; H2O / 0 °C
4: MgBr2*OEt2 / CH2Cl2 / -78 °C
5: 92 percent / NaH / tetrahydrofuran / 0 - 20 °C
6: EDC, DMAP / CH2Cl2 / 0 °C
With
dmap; 2,2,6,6-tetramethyl-piperidine-N-oxyl; sodium hypochlorite; (S,S)-[N,N-bis(3,5-di-tert-butylsalicylidene)-1,2-cyclohexane-diamino]cobalt(III) acetate; camphor-10-sulfonic acid; water; sodium hydride; diisobutylaluminium hydride; sodium hydrogencarbonate; N-(3-dimethylaminopropyl)-N-ethylcarbodiimide; sodium bromide; magnesium bromide;
In
tetrahydrofuran; dichloromethane; water; ethyl acetate; toluene;
DOI:10.1021/jo9810765