и-Alkyl/j-diphenyl ethers13 whose alkyl group consists of either d, C2, C3, C4 and C5, and aryl/j-diphenyl ethers whose aryl group includes phenyl25,/>-tolyl35 and benzyl15 have hitherto been reported on in the literature. Their melting points are shown in Tables I and II. The melting points, except for those of allyl, benzyl and/Kolyl ether, are within a relatively narrow range. In order to examine the physical properties of the ethers which have a ...