Triethylamine → S-sec-butyl ethylphosphonotrithioic acid

Participants

Reaction Steps

The triethylamine salt of S-(sec-butyl)ethylphosphonotrithioic acid was prepared as follows: 14.0 g (0.056 mole) of ethyl thionophosphine sulfide was dissolved in tetrahydrofuran; then 11.2 g (0.124 mole) of sec-butyl mercaptan was added, all at once. Then, 11.3 g (0.112 mole) triethylamine was added dropwise. The mixture was stirred at room temperature, then refluxed for 15 minutes. The solvent was removed in vacuo, leaving the acid salt (24.1 g, 68% of theoretical yield) as a semi-solid.

Provenance & Evidence