反应详情

温度

120 °C

A mixture of methyl 2-(2,6-dichlorophenylmethylidene)-3-oxo-5-phenylpentanoate(the crude product from the preceding experiment) and dimethyl 2-amino-1-propene-1,3-dicarboxylate (8.4 g, 48.5 mmol) was heated without solvent at 120° C. for 18 h. TLC showed a strong fluorescent spot at Rf=0.3 (dichloromethane/ethyl acetate: 24/1). This reaction mixture was chromatographed on 1.5 kg silica gel to yield 3.93 g of product. An additional 2 g of slightly impure product was also obtained.

1. customThis reaction mixture was chromatographed on 1.5 kg silica gel