Patent ID: 6331625
Filing Date: 2001-12-18
Classification: C07D,C09K,G02B

Abstract:
A photochromic eyeglass lens comprising a synthetic resin and at least one photochromic spirofluorenopyran compound corresponding to formula (I): ##STR8##whereinR.sub.1 is a substituent selected from the group A consisting of C.sub.1 to C.sub.6 alkyl, C.sub.1 to C.sub.6 alkoxy, phenyl, bromine, chlorine and fluorine, andR.sub.2, R.sub.3 and R.sub.4, independently of one another, are the same or different and each represent a substituent selected from group A' consisting of hydrogen and the substituents of group A;orat least one of the substituent pairs (R.sub.1 and R.sub.2) and (R.sub.3 and R.sub.4) independently represents an unsubstituted, monosubstituted or disubstituted benzene or pyridine ring, the substituents of which are selected from group A;G including the spiro carbon atom, represents a 5-member to 8-member ring to which at least one aromatic or heteroaromatic ring system is annelated, each said aromatic or heteroaromatic ring system being selected from group E consisting of benzene, naphthalene, phenanthrene, pyridine, quinoline, furan, thiophene, pyrrole, benzofuran, benzothiophene, indole and carbazol, and each said aromatic or heteroaromatic ring system being unsubstituted or having one or two substituents selected from the group A, andB and B', independently of one another, are selected from the following groups a), b), c) and d) whereingroup a) consists of the aryl groups phenyl and naphthyl, which are unsubstituted, monosubstituted, disubstituted or trisubstituted;group b) consists of the heterocyclic groups pyridyl, furanyl, benzofuranyl, thienyl, benzothienyl and julolidinyl, which are unsubstituted, monosubstituted or disubstituted;wherein the substituent or substituents of the aryl or heterocyclic groups in the groups a) and b) are selected from the group F consisting of hydroxy, amino, C.sub.1 to C.sub.6 monoalkylamino, C.sub.1 to C.sub.6 dialkylamino, mono- and diphenylamino unsubstituted, monosubstituted or disubstituted at the phenyl ring, piperidinyl, N-substituted piperazinyl, pyrrolidinyl, imidazolidinyl, pyrazolidinyl, indolinyl, morpholinyl, carbazolyl, unsubstituted, monosubstituted and disubstituted pyrryl, C.sub.1 to C.sub.6 alkyl, C.sub.1 to C.sub.6 alkoxy, bromine, chlorine and fluorine,andwherein the substituent or substituents on the aromatic and heteroaromatic rings in the group F are selected from the group consisting of C.sub.1 to C.sub.6 alkyl, C.sub.1 to C.sub.6 alkoxy, bromine, chlorine and fluorine;group c) consists of groups having the following structures: ##STR9##whereinY and Z, independently of one another, are selected from the group consisting of O, S, CH, CH.sub.2, NR.sup.N in which R.sup.N is C.sub.1 to C.sub.6 alkyl, C.sub.1 to C.sub.6 acyl, phenyl or hydrogen;R.sub.5 is selected from the group consisting of hydroxy and the substituents of group A;m is 0, 1 or 2; andR.sub.6 and R.sub.7 are independently selected from the group consisting of hydrogen and C.sub.1 to C.sub.6 alkyl; andgroup d) consists of B and B' together representing an unsubstituted, monosubstituted or disubstituted fluorene-9-ylide group or a saturated hydrocarbon group which is C.sub.3 to C.sub.12 spiro monocyclic, C.sub.7 to C.sub.12 spiro bicyclic or C.sub.7 to C.sub.12 spiro tricyclic; the substituents on the fluorene-9-ylide group being selected from the group A.