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8.3.6.18.3 Variation 3: Reaction of 4-Halotoluenes with Potassium Diphenylphosphide

DOI: 10.1055/sos-SD-008-01221

Venturello, P.; Barbero, M.Science of Synthesis, (200681433.

Treatment of 4-iodo- or 4-bromotoluene with potassium diphenylphosphide in refluxing ammonia or dimethyl sulfoxide at 25°C gives diphenyl(4-tolyl)phosphine (89) in good yields (Scheme 46).[‌59‌] The reaction occurs in the dark, but is stimulated by broad-spectrum UV irradiation.

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