反应详情

A mixture of [1-[4-(2-phenyl-4-thiazolylmethoxy)benzyl]-3-(2-thienyl)-1H-pyrazol-4-yl]methanol (5.57 g), activated manganese dioxide (16.11 g), and tetrahydrofuran (100 ml) was stirred at room temperature overnight. After the manganese dioxide was removed by filtration, the filtrate was concentrated to obtain 1-[4-(2-phenyl-4-thiazolylmethoxy)benzyl]-3-(2-thienyl)-1H-pyrazole-4-carbaldehyde (5.39 g, yield: 98%) as colorless crystals. This was recrystallized from acetone-hexane. Melting point: 115˜116° C.

1. customAfter the manganese dioxide was removed by filtration
2. concentrationthe filtrate was concentrated