反应详情

A mixture (100 mL) of sodium carbonate (0.06 mol) and toluene was heated to 95° C. 4.2 g of vinyl acetate was added dropwise to the mixture. Next, maintaining the temperature of the reaction mixture, and fifteen minutes later, further the mixture was combined with di-μ-chlorobis(1,5-cyclooctadiene)diiridium(I) [Ir(cod)Cl]2 (0.5 mmol). Next, (6-methyl-7-oxabicyclo[4.1.0]hept-3-yl)methanol (0.05 mol) was added dropwise over for two hours, and a reaction was carried out in a nitrogen atmosphere while adding dropwise 12.6 g of vinyl acetate and holding the reaction temperature at 95° C. After the completion of dropwise addition, the mixture was stirred for one hour. As the result of gas chromatography analysis of the mixture, it is confirmed that there was produced 1-methyl-4-vinyloxy-7-oxabicyclo[4.1.0]heptane represented by following Formula (14) in a yield of 95%. In 1H-NMR (CDCl3) analysis, signals specific to vinyl group were observed at 6.5 ppm, 4.2 ppm, and 4.05 ppm.

1. temperatureNext, maintaining the temperature of the reaction mixture, and fifteen minutes later
2. customat 95° C
3. additionAfter the completion of dropwise addition
4. customAs the result of gas chromatography analysis of the mixture, it