3-Tert-butyl-4-methoxybenzoyl chloride → 2-Hydroxy-4-[3-oxo-3-(3-tert-butyl-4-methoxyphenyl)-1-propynyl]benzoic acid

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Reaction Steps

Following the basic procedure of Example 1(b), by reacting 4.2 g (0.02 mol) of 3-tert-butyl-4-methoxybenzoyl chloride with 5 g (0.02 mol) of methyl 2-hydroxy-4-trimethylsilylethynylbenzoate, 6 g (81%) of the expected compound were obtained, after purification by chromatography on a silica column eluted with dichloromethane, in the form of a brown oil.

Provenance & Evidence