Sm. Peregudova et al., ELECTROCHEMICAL REDUCTION OF PHENYLETHYNYL HALIDES AND RELATED-COMPOUNDS, Russian chemical bulletin, 44(10), 1995, pp. 1973-1975
Reduction of phenylethynyl halides PhC=drop CHal (Hal = I(1), Br(2), C
l(3)), diiodoacetylene (4), (phenylethynyl)triphenylphosphonium bromid
e (5), and related compounds in THF was studied by means of cyclic vol
tammetry using a glassy-carbon electrode. Compounds 1-5 are reduced wi
th cleavage of the C--Hal bond, and the reduction potentials increase
in the order 3 < 2 < 1 < 4 < 5.