Acetyl chloride → HCID 76568111, compound

Participants

Reaction Steps

In a manner similar to the method described in example 190b, 1-benzofuran-5-carbaldehyde (1.2 g, 10 mmol) (Maybr-INT) was used as the starting material in place of 2-[2-(tert-butyl-dimethyl-silanyloxy)-ethoxy]-5-iodo-benzaldehyde to react with 1,1,3,3,3-hexamethyldisilazane (1.6 g, 10 mmol), n-butyllithium (2.5 M, 4 mL, 10 mmol), trimethylsilyl chloride (1.1 g, 10 mmol), triethylamine (1.36 g, 13.6 mmol) and acetyl chloride (1 g, 13.6 mmol) to give crude 1-(1-benzofuran-5-yl)-3-trimethylsilyoxy-2-aza-1,3-butadiene as a yellow gum and used for the next step without further purification.

Provenance & Evidence