as previously described6 and the forerun from the reductive acetylation was examined carefully. From this reduction was obtained a l5Y0 yield of 2, 3-di (acetoxymethyl)-3-butenyl acetate, together with the expected tetraacetate. The structure of this olefin triacetate was proved by pyrolysis to the known 2, 3-di (acetoxymethyl)-1, 3-butadiene6 and by independent synthesis by the pyrolysis of 2, 3-di (acetoxymethyl)-1, 4-diace-toxybutane. ...
