Water → HCID 11032969, compound

Participants

Reaction Steps

A two liter beaker fitted with a mechanical stirrer, ice bath, and pH electrode, was charged with 700 mL of water and 89.4 g (0.624 mol) of nonylamine in 200 mL of ether. To this stirred mixture was added dropwise over a 30 minute period a solution of the above 5-carbomethoxyvaleryl chloride in 100 mL of ether. Concurrent with addition of the ether solution was added 50% sodium hydroxide solution at a rate such as to keep the pH of the aqueous layer between 10 and 12. Following addition of the acid chloride and sodium hydroxide the reaction mixture was added to a two L separatory funnel and extracted with 300 mL methylene chloride. The methylene chloride layer was separated, washed with 300 mL saturated sodium chloride solution, and dried over magnesium sulfate. Removal of the methylene chloride on a rotary evaporator yielded a yellow oil which solidified upon standing. Recrystallization from hexane afforded the methylester of 6-nonylamino-6-oxocaproic acid as colorless crystals, mp 56°-57° C., weight 155.1 g. Upon cooling to -15° C. the filtrate deposited an additional 11.0 of product. Total yield was 166.1 g (93%).

Provenance & Evidence