反应详情

温度

-75 °C

Under an argon atmosphere 2.8 mL (4.5 mmol) of a 1.6 M n-butyllithium solution were added to a mixture of 1.2 g (4.0 mmol) 2-benzyloxy-5-bromo-1,3-dimethyl-benzene in mL THF cooled to −75° C. and the mixture was stirred for 1 h at −75° C. Then 0.96 g (4.3 mmol) 6-chloro-pyrimidine-4-carboxylic acidmethoxy-methyl-amide, dissolved in 10 mL THF, were added dropwise. After another 30 min stirring at −75° C. the reaction mixture was slowly heated to 0° C. The mixture was combined with saturated sodium hydrogen carbonate solution and extracted with diethyl ether. The organic phase was dried and evaporated down. The residue was purified by flash chromatography.

1. additionwere added dropwise
2. stirringAfter another 30 min stirring at −75° C. the reaction mixture
3. temperaturewas slowly heated to 0° C
4. extractionextracted with diethyl ether
5. customThe organic phase was dried
6. customevaporated down
7. customThe residue was purified by flash chromatography