Multi-step reaction with 4 steps
1: 88 percent / bis(2,5-norbornene)tris(tert-butyl)phosphine-platinum(0) / tetrahydrofuran / 18 h / Heating
2: 1.) titanium tetraisopropoxide, L-(+)-diethyl tartrate, 4 A molecular sieves, 2.) 5.48 M tert-butylhydroperoxide, 3.) dimethyl sulphide / 1.) CH2Cl2, 20 min, 2.) CH2Cl2, -20 deg C, 48 h, 3.) CH2Cl2, 1 h
3: 93 percent / propionic acid / toluene / 30 min, reflux, addition repeated 3 times
4: 2 percent w/v OsO4, K3Fe(CN)6, K2CO3, dihyroquinidine 4-chlorobenzoate / 2-methyl-propan-2-ol; H2O / 18 h / Ambient temperature
With
titanium(IV) isopropylate; tert.-butylhydroperoxide; osmium(VIII) oxide; dimethylsulfide; diethyl (2R,3R)-tartrate; dihydroquinidine 9-O-(4-chlorobenzoate); 4 A molecular sieve; potassium carbonate; propionic acid; potassium hexacyanoferrate(III);
bis(2,5-norbornene)tris(tert-butyl)phosphine-platinum(0);
In
tetrahydrofuran; water; toluene; tert-butyl alcohol;
DOI:10.1016/0040-4020(95)00736-R