Multi-step reaction with 2 steps
1.1: diisobutylaluminium hydride / diethyl ether; hexane / 2 h / -78 °C / Inert atmosphere
1.2: 0.5 h / 25 - 28 °C / Inert atmosphere; Saturated solution
2.1: cyclopentadienylruthenium(II) trisacetonitrile hexafluorophosphate; (3aR,11aR,14aS,16bS)-2,2,13,13-tetra-isopropyl-3a,11a,14a,16b-tetrahydro-bis(1,3-dioxolano[4',5':3,4]pyrrolo)[1,2-a:1',2'-a]naphtho[1,2-d:8,7-d']diimidazole; toluene-4-sulfonic acid / dichloromethane / 1 h / 60 °C / Inert atmosphere
With
cyclopentadienylruthenium(II) trisacetonitrile hexafluorophosphate; (3aR,11aR,14aS,16bS)-2,2,13,13-tetra-isopropyl-3a,11a,14a,16b-tetrahydro-bis(1,3-dioxolano[4',5':3,4]pyrrolo)[1,2-a:1',2'-a]naphtho[1,2-d:8,7-d']diimidazole; diisobutylaluminium hydride; toluene-4-sulfonic acid;
In
diethyl ether; hexane; dichloromethane;
DOI:10.1002/anie.201100772