反应详情

A 1 M KOt-Bu solution in tetrahydrofuran (50 mL, 50 mmol) is cooled to −40° C., treated portion-wise with a solution of chloromethyl phenyl sulfone (4.39 g, 23.0 mmol) and then with a solution of 2-methoxy-5-nitropyridine (3.55 g, 23.0 mmol) in tetrahydrofuran, stirred for 45 min at −40° C., treated with glacial acetic acid (3.0 g, 50 mmol) and filtered. The filtercake is air-dried to give the title compound as a tan solid, 5.70 g (80% yield), mp 147-149° C., identified by mass spectral and HNMR analyses.

1. filtrationfiltered
2. customThe filtercake is air-dried