Multi-step reaction with 12 steps
1.1: 84 percent / NaOH; H2; ethylenediamine / Ni(OAc)2*4H2O; NaBH4 / ethanol / 72 h / 760.05 Torr
2.1: N,N-dimethylaniline / CH2Cl2 / 0.17 h / 0 °C
2.2: 65 percent / triethylamine / CH2Cl2 / 20 °C
3.1: Rh2[5(S)-MEPY]4 / CH2Cl2 / 18 h / Heating
3.2: Me3Al / hexane; CH2Cl2 / 20 °C
3.3: 2,6-lutidine / CH2Cl2; H2O / 2 h / 0 °C
4.1: t-BuOK / diethyl ether / 0 - 20 °C
4.2: H2O / diethyl ether / 0.25 h / 20 °C
5.1: ethyl chloroformate; Et3N / acetone; H2O / 0.5 h / 0 °C
5.2: NaN3 / H2O; acetone / 2 h / 0 °C
5.3: toluene / 3 h / Heating
6.1: 84 percent / Bu3SnH / (Ph3P)4Pd / CH2Cl2 / Heating
7.1: 1 h / 20 °C
8.1: AcCl / 1 h / Heating
8.2: 286 mg / methanol / 1 h / Heating
9.1: 96 percent / Dess-Martin periodinate / CH2Cl2 / 0.5 h / 20 °C
10.1: 96 percent / NaClO2; 30percent H2O2; NaH2PO4 / H2O; acetonitrile / 3.5 h / 0 °C
11.1: Et3N; ethyl chloroformate / acetone; H2O / 0.5 h / 0 °C
11.2: sodium azide / acetone; H2O / 2 h / 0 °C
11.3: 81 percent / toluene / 4 h / Heating
12.1: 84 percent / Bu3SnH / (Ph3P)4Pd / CH2Cl2 / 0.25 h / 20 °C
With
sodium hydroxide; sodium chlorite; sodium dihydrogenphosphate; potassium tert-butylate; hydrogen; tri-n-butyl-tin hydride; chloroformic acid ethyl ester; Dess-Martin periodane; N,N-dimethyl-aniline; ethylenediamine; triethylamine; acetyl chloride;
sodium tetrahydroborate; tetrakis(triphenylphosphine) palladium(0); Rh2[(2S)-5-hydroxypyrrolidine-2-COOMe]4; nickel diacetate;
In
diethyl ether; ethanol; dichloromethane; water; acetone; acetonitrile;
2.2: Corey-Myers reaction / 3.2: Weinreb reaction / 5.3: Curtius reaction / 6.1: Speckamp reaction / 11.3: Curtius reaction / 12.1: Speckamp reaction;
DOI:10.1021/jo0110698