反应详情

温度

0 °C

To α-[[2-[[Bis[bis(2-chloroethyl)amino]phosphinyl]oxy]ethyl]thio]-4-carboxytoluene, 411 mg, in 10 mL dichloromethane was added 400 μL diisopropylethylamine and glycine ethyl ester, 212 mg. The solution was cooled to 0° C. and HBTU, 317 mg, in 2 mL dimethylformamide was added, after which the mixture was allowed to warm to room temperature. The reaction mixture was diluted with dichloromethane, then washed 3 times with 1 M hydrochloric acid, 5 times with saturated aqueous sodium bicarbonate, and once with brine. The organic layer was dried over MgSO4, filtered, and the solvents removed under vacuum to give α-[[2-[[bis[bis(2-chloroethyl)amino]phosphinyl]oxy]ethyl]thio]-4-[(ethoxycarbonylmethyl)aminocarbonyl]toluene as a clear oil, 411 mg, with product identity verified by LC-MS.

1. temperatureto warm to room temperature
2. washwashed 3 times with 1 M hydrochloric acid, 5 times with saturated aqueous sodium bicarbonate
3. dry with materialThe organic layer was dried over MgSO4
4. filtrationfiltered
5. customthe solvents removed under vacuum