2308 (t, 9, j=7.0, CHa) Found: 0, 71.89; H, C, 72.30; H, 10.7l%. Although VI gave rather unsatisfactory elemental analysis, it was used without further purification in the following reac- tlon. 5—t-Butyl—2,4-hejjtadien-63ynal (VII A mixture of VI (10.00 g, 0.0354 mol), dioxane (60 ml) and 3M hydrochloric acid (50 ml) was vigorously stirred under nitrogen atmosphere at 50 °C for 3 h, and then at 40 °C for 18 h. The reaction mixture was chilled and the organic layer was ...
