2-Amino-3-chloropyridine → 8-Chloro-2-(4-(trimethylsilyl)but-3-ynyl)-imidazo[1,2-a]pyridine

Participants

Reaction Steps

The title compound was prepared in accordance with the general method of Example 223(D), from 1-bromo-6-(trimethylsilyl)hex-5-yn-2-one (4.96 g, 20.1 mmol, Example 223(C)) and 3-chloropyridin-2-amine (1.29 g, 10.0 mmol). The crude residue was purified by flash chromatography (cyclohexane/AcOEt 4:1) to yield 2.00 g (7.22 mmol, 72%) of 8-chloro-2-(4-(trimethylsilyl)but-3-ynyl)-imidazo[1,2-a]pyridine as a brown solid.

Provenance & Evidence