反应详情

温度

-78 °C

To a solution of LiHMDS in THF cooled to −78° C. was added a solution of methyl 3-(diphenylmethyleneamino)-2-phenylpropanoate (E320) in THF also cooled to approximately −78° C. This solution stirred for 30 min at −78° C., then methyl iodide was added directly and the solution was warmed to 0° C. After 3 h the solution was poured into NH4Cl(sat) and extracted with EtOAc. The combined organics were dried (Na2SO4) filtered, and evaporated. Column chromatography (SiO2, 0-15% EtOAc/Hexanes) gave pure methyl 3-(diphenylmethyleneamino)-2-methyl-2-phenylpropanoate (E321).

1. temperaturethe solution was warmed to 0° C
2. extractionextracted with EtOAc
3. dry with materialThe combined organics were dried (Na2SO4)
4. filtrationfiltered
5. customevaporated