Tetrabutylammonium Hydroxide → HCID 22616846, compound

Participants

Reaction Conditions

Reaction Steps

1.06 g (0.004 mol) of 2-[4-(4-cyanopbenylazo)phenoxy]-ethanoic acid was transferred to a 50 mL one-neck round flask fitted with a magnetic stirring bar and 10.4 mL of a 20% aqueous solution of tetrabutylammonium hydroxide (Merck, zur Synthese) was added and the mixture heated while stirring on an oilbath until a solution was formed The solution was cooled to approx. 30° C., 3.5 mL of methylene chloride was added and vigorously stirred. The liquids were transferred to a separating funnel with a pipette and allowed to separate. The dark red, lower methylene chloride solution was drained into a 25 mL beaker. The remaining aqueous phase was washed with additional 1.5 mL of methylene chloride which was also added the beaker. The combined methylene chloride solutions of tetrabutylammonium 2-[4-(4-cyanophenylazo)phenoxy]-ethanoate were dried with Na2SO4 for ½ h and filtered. The filtercake was further washed with 1 mL of methylene chloride and the combined tetrabutylammonium 2-[4-(4-cyanophenyl-azo)phenoxy]-ethanoate solution was diluted to 8 mL corresponding to an 0.5 M solution.

Provenance & Evidence