Methanol → HCID 21387249, compound

Participants

Reaction Conditions

Reaction Steps

To 25 ml of stirred methanol in a 125 ml erlenmeyer flask was slowly added 1.2 grams (0.028 moles) of 57% sodium hydride. The solution was cooled to 25° C in a cold water bath and 5.9 grams (.028 moles) of 2-sec.-butylazo-2-isocyanato-4-methylpentane (from Example XVII) was added dropwise over 5 minutes. The reaction was stirred an additional hour at room temperature, poured into 200 ml water, the product extracted with 100 ml pentane, washed with 100 ml saturated sodium bicarbonate solution, dried over anhydrous sodium sulfate, filtered and the pentane evaporated under reduced pressure on a rotating evaporator. The product was a yellow liquid and weighed 3.9 grams (57.3% crude yield). The infrared spectrum was in agreement with the structure of 2-sec-butylazo-2-(methoxycarbonylamino)-4-methylpentane (strong carbonyl band at 1740 cm-1, sharp NH at 3375 cm-1 and no isocyanate band at 2125-2225 cm-1).

Provenance & Evidence