Phenylthiophosphonic dichloride

Monophenylphosphine reacts with thionyl chloride to give mainly phenylthiophosphonic dichloride (6.78) and with sulphnr or snlphnr dichloride to give cyclic phenylthionophosphine sulphide (9.567, 9.568). Under controlled conditions, secondary phosphines will add sulphur to give secondary phosphine sulphides or phosphinodithioic adds (6.79). 

Similar Hammett or Taft correlations have been shown for para-substi-tuted triphenylphosphines (although poor), substituted phenylphosphonic difluorides (Szafraniec, 1974 slope p= —5.96), substituted phenylphosphonic acids (Mitsch et al., 1970), aryl-substituted diethyl phenyl phos-phonates (Mitsch et al., 1970), substituted phenylthiophosphonic dichlorides (where resonance and polar contributions are separated Maier, 1974), and others (Anttimanninen, 1981). In all cases electron-withdrawing substituents lead to increased shielding of phosphorus. If the Letcher and Van Wazer theory is correct (and criticism exists, cf. Kozlov and Gaidamaka, 1972 lonin, 1968 Murray eta/., 1971 Schmidpeter and Schumann, 1970),... 

Phenylthallium diazide, 2279 Phenylthiophosphonic diazide, 2278 Phenylvanadium(V) dichloride oxide, 2239 Phosgene, see Carbonyl dichloride, 0328 Phospham, 4434 f Phosphine, 4503... 

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See also in sourсe #XX -- [ ]

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