Multi-step reaction with 8 steps
1: toluene / 1 h / -42 °C
2: 1.) Mg / 1) THF, rt, 20 min, 0 deg C, 1 h, rt, 2 h; 2) THF, toluene, -78 deg C, 4 h
3: 1.) NaIO4, OsO4, 2.) L-selectride / 1) H2O, THF, rt, 19 h; 2) THF, -78 deg C, 2 h
4: 96 percent / Ph3P, N-chlorosuccinimide / CH2Cl2 / 1) -23 deg C, 1 h; 2) 25 deg C, 2 h
5: 91 percent / NaOMe / methanol / 1) reflux, 6 h; 2) rt, 14 h
6: 95 percent / pyridinium bromide perbromide / CH2Cl2 / 4.5 h / -23 °C
7: 1.) L-selectride / 1) THF, -23 deg C, 3 h; 2) THF, -23 deg C, 14 h
8: 1.) t-BuLi, 2.) ZnBr2, 3.) (Ph3P)4Pd / 1) THF, -78 deg C, 2 h; 2) THF, -78 deg C, 10 min; 3) THF, 25 deg C, 2 h, reflux, 2 d
With
sodium periodate; N-chloro-succinimide; osmium(VIII) oxide; tetrakis(triphenylphosphine) palladium(0); tert.-butyl lithium; sodium methylate; pyridinium hydrobromide perbromide; L-Selectride; magnesium; triphenylphosphine; zinc dibromide;
In
methanol; dichloromethane; toluene;
DOI:10.1021/jo9711495