反应详情

To a mixture of 10 g of product from Example 64, 0.095 g of dimethylformamide and 150 ml of methylene chloride is added, dropwise, 3.42 ml of oxalyl chloride. The reaction is stirred at room temperature for 69 hours and then concentrated in vacuo. The residue is dissolved in diethyl ether, filtered and concentrated in vacuo to give 10.5 g of the desired product as a yellow oil.

1. additionis added
2. concentrationconcentrated in vacuo
3. dissolutionThe residue is dissolved in diethyl ether
4. filtrationfiltered
5. concentrationconcentrated in vacuo