反应详情

To a stirred solution of 4.22 grams (.0426 moles) of cyclohexylamine in 20 ml pentane in a 125 ml erlenmeyer flask, cooled to 5° C. in an ice bath, was slowly added a solution of 5.78 grams (.0213 moles) of 1,1'-azobis (1-isocyanatocyclohexane) in 20 ml of pentane. During the addition, a solid product formed. After the addition was complete, the reaction was stirred an additional 30 minutes at 0°-5° C. The reaction mixture was filtered and the filter cake washed with pentane and dried. The dry white solid weighed 5.4 grams (54% crude yield) and melted at 105°-109° C. with decomposition. The infrared spectrum of the product contained a strong carbonyl band at 1655 cm-1 and NH bands at 3200 cm-1 to 3440 cm-1.

1. additionDuring the addition
2. customa solid product formed
3. additionAfter the addition
4. filtrationThe reaction mixture was filtered
5. washthe filter cake washed with pentane
6. customdried