4217-52-1Relevant articles and documents
Reduction of diaryl alkenes by hypophosphorous acid-iodine in acetic acid
Fry, Albert J.,Allukian, Myron,Williams, Allison D.
, p. 4411 - 4415 (2002)
A mixture of 50% aqueous H3PO2 and I2 (in catalytic amount) in HOAc efficiently reduces aryl alkenes to the corresponding alkanes in high yield. Addition of acetic anhydride to the medium results in ring-acetylation (or N-acetylation in the case of amines). H3PO2 costs only one-fifth as much as hydriodic acid on a mole basis and one mole of H3PO2 produces four moles of HI, resulting in a 20-fold cost advantage for H3PO2/I2 over aqueous HI as a source of HI.