Van Gemert Barry (Murrysville PA) Kumar Anil (Pittsburgh PA)
출원인 / 주소
Transitions Optical, Inc. (Pinellas Park FL 02)
인용정보
피인용 횟수 :
17인용 특허 :
10
초록▼
Described are novel reversible photochromic 3H-naphtho[2,1-b]pyran compounds, of the following graphic formula: [Figure] wherein R1 is hydrogen or alkyl, R2 is hydrogen or preferably a carboalkoxy group and R3 is hydrogen or preferably an alkyl group, provided that either R1 or R2 is hydrogen, and B
Described are novel reversible photochromic 3H-naphtho[2,1-b]pyran compounds, of the following graphic formula: [Figure] wherein R1 is hydrogen or alkyl, R2 is hydrogen or preferably a carboalkoxy group and R3 is hydrogen or preferably an alkyl group, provided that either R1 or R2 is hydrogen, and B and B′are the aryl groups phenyl or naphthyl, a heterocyclic aromatic group or together form a spiro adamantylene group. Also described are organic host materials that contain or that are coated with such compounds. Articles such as ophthalmic lenses or other plastic transparencies that incorporate the novel naphthopyran compounds or combinations thereof with complementary photochromic compounds, e.g., spiro(oxazine) type compounds, are also described.
대표청구항▼
A photochromic article comprising an organic host material and a photochromic amount of a naphthopyran compound represented by the following graphic formula: [Figure] wherein: (a) R1 is hydrogen or a C1-C6 alkyl; R2 is hydrogen or the group, －C(O)W, W being －OR4 or －N(R5)R6, wherein R4 is hydrogen,
A photochromic article comprising an organic host material and a photochromic amount of a naphthopyran compound represented by the following graphic formula: [Figure] wherein: (a) R1 is hydrogen or a C1-C6 alkyl; R2 is hydrogen or the group, －C(O)W, W being －OR4 or －N(R5)R6, wherein R4 is hydrogen, allyl, C1-C6 alkyl, phenyl, C1-C6 monoalkyl substituted phenyl, C1-C6 monoalkoxy substituted phenyl, phenyl(C1-C3)alkyl, C1-C6 monoalkyl substituted phenyl(C1-C3)alkyl, C1-C6 monoalkoxy substituted phenyl(C1-C3)alkyl, C1-C6 alkoxy(C2-C4)alkyl, or C1-C6 monohaloalkyl, and wherein R5 and R6 are each selected from the group consisting of hydrogen, C1-C6 alkyl, C5-C7 cycloalkyl, phenyl and mono- or di-substituted phenyl, or R5 and R6 together with the nitrogen form a mono- or di-substituted or unsubstituted heterocyclic ring selected from the group consisting of indolinyl, morpholino, piperidino, 1-pyrrolidyl, 1-pyrrolinyl, 1-imidazolidyl, 2-imidazolin-1-yl, 2-pyrazolidyl and 1-piperazinyl, said phenyl and heterocyclic ring substituents being selected from C1-C6 alkyl and C1-C6 alkoxy and said halo substituent being chloro or fluoro; R3 is hydrogen, C1-C6 alkyl, phenyl(C1-C3)alkyl, C1-C6 monoalkyl substituted phenyl(C1-C3)alkyl, C1-C6 monoalkoxy substituted phenyl(C1-C3)alkyl, C1-C6 alkoxy(C2-C4)alkyl, C5-C7 cycloalkyl, C1-C4 monoalkyl substituted C5-C7 cycloalkyl, C1-C6 monohaloalkyl, allyl or the group, －C(O)X, wherein X is a C1-C6 alkyl, phenyl, C1-C6 mono-or C1-C6 di-alkyl substituted phenyl, C1-C6 mono- or C1-C6 di-alkoxy substituted phenyl, C1-C6 alkoxy, phenoxy, C1-C6 mono- or C1-C6 di-alkyl substituted phenoxy, C1-C6 mono- or C1-C6 di-alkoxy substituted phenoxy, C1-C6 alkylamino, phenylamino, C1-C6 mono- or C1-C6 di-alkyl substituted phenylamino, or C1-C6 mono- or C1-C6 di-alkoxy substituted phenylamino, and said halo substituent being chloro, fluoro or bromo, provided that one of R1 or R2 is hydrogen; and (b) B is selected from the group consisting of the substituted or unsubstituted aryl groups phenyl and naphthyl, and (c) B′is selected from the group consisting of the substituted or unsubstituted heterocyclic aromatic groups pyridyl, furyl, benzofuryl, thienyl, and benzothienyl, said aryl and heterocyclic substituents being selected from the group consisting of hydroxy, C1-C5 alkyl, C1-C5 haloalkyl, C1-C5 alkoxy, C1-C5 alkoxy(C1-C4)alkyl, C1-C5 dialkylamino, acryloxy, methacryloxy, and halogen, said halogen or (halo) groups being fluoro, chloro, or bromo.
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