... 1982, 115, 1509-1524. (20) (a) Cohen, Z.; Keinan, E.; Mazur, Y.; Varbony, T. H. J. Org. Chem. 1975, 40, 2141-2142. ... Synth. 1980,59, 176-182. (21) For a review see: Bailey, P. S. "Ozonation in Organic Chemistry"; Academic Press: New York, 1982; Vol. 2, pp 312-319. ...