Abstract
o-Methoxyphenyl dichlorophosphite 1 reacts with chlorine to give o-phenylenedioxy-trichlorophosphorane 4 and with antimony pentachloride to give o-methoxyphenoxy-trichlorophosphonium-hexachloroantimonate. o-Methoxyphenoxy-tetrachlorophosphorane 2 cannot be isolated.