Triethylamine → HCID 54276680, compound

Participants

Reaction Steps

A solution of 21 g of the product of Step B, 300 ml of methylene chloride and 49.5 ml of triethylamine was cooled to -40° C. and at -40° C. a solution of 9.42 g of diphosgene in 90 ml of methylene chloride was added. The residue, after returning the temperature to 20° C. and concentrating the mixture under reduced pressure, was taken up in ether and filtered. The filtrate was concentrated under reduced pressure to obtain 23 g of the expected product.

Provenance & Evidence