Multi-step reaction with 9 steps
1: 52.3 percent / molecular sieves 4A, N-iodosuciinimide, trifluoromethanesulfonic acid / CH2Cl2 / 1.5 h / 0 °C
2: 93 percent / NaOMe / methanol / Ambient temperature
3: 83.5 percent / 4-toluenesulfonic acid / dimethylformamide / Ambient temperature
4: 96.5 percent / acetic anhydride, dimethyl sulfoxide / Ambient temperature
5: 65.7 percent / sodium borohydride / methanol; CH2Cl2 / 4 h / Ambient temperature
6: 98 percent / pyridine / Ambient temperature
7: 82 percent / 60percent aq. CH3COOH / 2 h / 70 °C
8: 1.) Hg(CN)2, molecular sieves 4A / 1.) benzene, nitromethane, reflux, 2.) benzene, nitromethane, 40-45 deg C, overnight
9: 63 percent / NaOMe / methanol / Ambient temperature
With
pyridine; sodium tetrahydroborate; N-iodo-succinimide; trifluorormethanesulfonic acid; 4 A molecular sieve; sodium methylate; mercury(II) cyanide; acetic anhydride; toluene-4-sulfonic acid; acetic acid; dimethyl sulfoxide;
In
methanol; dichloromethane; N,N-dimethyl-formamide;
DOI:10.1016/0008-6215(95)00257-X