反应详情

A solution of 1.4 g of sodium nitrite in 5 ml of water is added dropwise at 0°-10° to a mixture of 4.42 g of N-(5-methoxycarbonylpentyl)-aniline, 2.9 ml of concentrated hydrochloric acid, and ice as needed to maintain the desired temperature. The mixture is then allowed to stir at ambient temperature for 1 hour and is then extracted with ether. The extract is washed with water, dried over magnesium sulfate, and evaporated in vacuo to give N-nitroso-N-(5-methoxycarbonylpentyl)-aniline as an oil.

1. temperatureto maintain the desired temperature
2. extractionis then extracted with ether
3. washThe extract is washed with water
4. dry with materialdried over magnesium sulfate
5. customevaporated in vacuo