Triisopropyl phosphite → 5-[2-Chloro-4-(trifluoromethyl)phenoxy]-2-nitrobenzoyl-phosphonic acid, diisopropyl ester

Participants

Reaction Steps

To a stirred solution of 5-[2-chloro-4-(trifluoromethyl)phenoxy]-2-nitrobenzoyl chloride (3.8 g, 0.01 mole) in ether (100 ml) was added triisopropyl phosphite (2.1 g, 0.01 mole). The reaction was refluxed for one hour and the disappearance of phosphite monitored by v.p.c.. The ether was stripped off and the resulting oil placed under vacuum (1.0 mm) at 40° C. for two hours. The resulting amber liquid amounted to 5.2 g.

Provenance & Evidence