Multi-step reaction with 9 steps
1: 81 percent / N-iodosuccinimide, 4 Angstroem molecular sieves / trifluoromethanesulfonic acid / 1,2-dichloro-ethane; diethyl ether / 0.25 h / 0 °C
2: t-BuOK / methanol / 2 h / 20 °C
3: camphorsulfonic acid / acetone / 2 h / 20 °C
4: 85 percent / 4-methylmorpholine N-oxide, 4 Angstroem molecular sieves / tetrapropylammonium per-ruthenate / 1,2-dichloro-ethane / 0.17 h / 20 °C
5: 90 percent / NaBH4 / ethanol / 0.17 h / 20 °C
6: aq. AcOH / 3 h / 50 °C
7: camphorsulfonic acid / acetone / 3 h / 20 °C
8: 70 percent / N-iodosuccinimide, 4 Angstroem molecular sieves / trifluoromethanesulfonic acid / 1,2-dichloro-ethane; diethyl ether / 0.17 h / 0 °C
9: 79 percent / N2H4*H2O, AcOH / methanol; ethyl acetate / 17 h / 40 °C
With
sodium tetrahydroborate; N-iodo-succinimide; 4 A molecular sieve; camphor-10-sulfonic acid; potassium tert-butylate; hydrazine hydrate; acetic acid; 4-methylmorpholine N-oxide;
tetrapropylammonium perruthennate; trifluorormethanesulfonic acid;
In
methanol; diethyl ether; ethanol; ethyl acetate; 1,2-dichloro-ethane; acetone;
DOI:10.1016/0008-6215(93)80102-K