Download full text in PDF Opens in a new window. Article suggestions will be shown in a dialog on return to ScienceDirect. ... Please enable JavaScript to use all the features on this page. ... Air oxidation of cyclopropanone cyanohydrins produced β-peroxypropilactones (2). The 3,3-diphenyl-substituted-2 was decomposed readily by the catalysis of silica gel to yield α-phenoxystyrene quantitatively. ... Ketene Equivalents, No. 10. For No. 9 see ref. 5.