ETHERS OF RESORCINOL AND AMINOPHENOL 529 amalgam;'111 by the reduction of m- xylylene dicyanide; 8 I11 is of particular interest because it may be converted by a Hofmann degradation of the corresponding quaternary ammonium hydroxide into a hydrocarbon which corresponds in structure to dihydro-naphthalene; the reduction of this latter hydrocarbon yields a saturated compound which corresponds to tetrahydro-naphthalene. ...