Naphthalocyanine derivative and production process thereof, as well as optical information recording media using the derivatives and production process thereof

摘要

There are disclosed a novel naphthalocyanine derivative represented by the general formula [I] or [II] shown below, a process for preparing said derivative, an optical information recording medium using said derivative, and a process for preparing thereof: (I) or (II) wherein M is a metal, metal oxide, metal hydroxide and the like, R1 is an alkyl group of 1-22 carbon atoms, n is an integer of 1 to 4, and Y1 and Y2 aryloxy group and the like.