| Reference: | Buchi, G.; Carlson, J. A. J. Am. Chem. Soc. 1968, 90, 5336–5337. DOI |
| Keywords: | Diels-Alder, allene • Alkene -> Diol-1,2 • Pyrone synthesis • Diol-1,2 cleavage • Aldol-H+ -> Enone • Enol -> Vinyl-Cl • Cu-Vinyl+Vinyl-X • Vinyl-X+Cu-R • |
| Reagents: | OsO4 • DMF dimethylacetal • HCl, H2O • Periodate, sodium • Amberlite • Oxalyl chloride • |