78250-27-8

Upstream product

• 91-66-7 N,N-diethylaniline 
• 79781-46-7 1-Methoxy-4-phenyl-naphthalene-2,3-dicarbonitrile 
• 5438-22-2 3-(ethoxycarbonyl)-4,4-diphenylbut-3-enoic acid 
• 78250-28-9 ethyl 4-acetoxy-1-phenyl-2-naphthoate 
• 99303-73-8 methyl ester of 4-acetoxy-1-phenyl-2-naphthoic acid 
• 77380-10-0 4-phenyl-2,3-dibromo-1-methoxynaphthalene 
• 675125-42-5 ethyl 1-hydroxy-4-phenylnaphthalene-3-carboxylate 

Downstream Products

• 116515-60-7 4-hydroxy-9-phenylnaphtho<2,3-c>furan-1-(3H)-one 
• 78250-41-6 4-ethoxy-1-phenyl-[2]naphthoic acid 
• 290349-01-8 2-hydroxyethyl 4-hydroxy-1-phenyl-2-naphthoate 
• 78250-23-4 5-(2-dimethylaminoethoxy)-7-oxo-7H-benzofluorene 
• 76694-22-9 2-Hydroxymethyl-4-methoxy-1-phenylnaphthalene 
• 78250-35-8 1-Phenyl-2-(N-benzyl,N',N'-dibenzylpiperazinomethyl)-4-<β-(N-benzyl-N,N-dimethyl)aminoethoxy>naphthalene tribromid 
• 78250-16-5 (4-ethoxy-1-phenyl-naphth-2-ylmethyl)(β-phenoxyethyl)diethylammonium bromide 
• 78250-14-3 (4-methoxy-1-phenyl-naphth-2-ylmethyl)(β-phenoxyethyl)diethylammonium bromide 
• 78250-15-4 (4-ethoxy-1-phenyl-naphth-2-ylmethyl)(β-phenoxyethyl)dimethylammonium bromide 
• 78266-24-7 (4-methoxy-1-phenyl-naphth-2-ylmethyl)(β-phenoxyethyl)dimethylammonium bromide 
• 78250-13-2 4-ethoxy-2-(4'-carbethoxypiperazino)-1-phenylnaphthalene 
• 78250-11-0 4-methoxy-1-phenyl-2-(4'-(o-tolyl)piperazino)naphthalene 
• 78250-12-1 4-methoxy-1-phenyl-2-(4'-carbethoxypiperazino)naphthalene 
• 78250-09-6 4-methoxy-1-phenyl-2-(4'-benzylpiperazino)naphthalene 

Relevant academic research and scientific papers

Substituent effects on the photochromic properties of 3,3-diphenyspiro[benzofluorenopyran-cyclopentaphenanthrene]s

The introduction of electron-donating groups on the skeleton of a naphthopyran, 3,3-diphenyspiro[benzofluorenopyran-cyclopentaphenanthrene], has led to the development of a photochromic dye applicable to photochromic lenses. Introducing a methoxy group to C6 moved the absorption band of the MC form towards the longer wavelength. Further introduction of methoxy groups to the para-position of the phenyl groups on C3 induced faster decoloration of the MC form. Additional introduction of a methoxy group to C13 led to the enhancement of the absorption intensity as well as the facile, economic synthesis of the dye caused by the symmetrical property of the starting material.

NOVEL PHOTOCHROMIC INDENO-FUSED NAPHTHOPYRANS

Described are novel photochromic indeno-fused naphthopyran compounds, examples of which are naphthopyran compounds having a substituted or unsubstituted indeno group, the 2,1 positions of which are fused to the f side of the naphtho portion of the naphtho

Photochromic indeno-fused naphthopyrans

Described are novel photochromic indeno-fused naphthopyran compounds, examples of which are naphthopyran compounds having a substituted or unsubstituted indeno group, the 2,1 positions of which are fused to the f side of the naphtho portion of the naphthopyran, and certain substituents at the 3-position of the pyran ring. Certain substituents may also be present at the number 5, 6, 7, 8, 9, 10, 11, 12, or 13 carbon atoms of the compounds. These compounds may be represented by the following graphic formula: STR1 Also described are polymeric organic host materials that contain or that are coated with such compounds. Optically clear articles such as ophthalmic lenses or other plastic transparencies that incorporate the novel naphthopyran compounds or combinations thereof with complementary photochromic compounds, e.g., certain other naphthopyrans, benzopyrans, and spiro(indoline)type compounds, are also described.

SOME DERIVATIVES OF 4-ARYL-2,3-DICYANO-1-NAPHTHOL

Reactions of vicinal aromatic dibromo derivatives Ia-d with the system copper(I)cyanide-tetramethylurea gave vicinal dicyano derivatives IIa-d; products of partial substitution, Va-d, demethylation and deacetylation, IIIa-c, were also formed.The compounds IIIa-c were also prepared by direct demethylation of compounds IIa-c with the system anhydrous aluminium chloride-dichloroethane.The structures of selected compounds were determined by spectral methods.Compounds IIa-d have proved to have a moderate antineoplastic effect in animals with some transplantable experimental tumours.

Syntheses of 2,4-Disubstituted 1-Phenylnaphthalenes 5-Substituted Benzofluoren-7(H)-ones as Possible Anti-hookworm Agents

Various 2,4-disubstituted 1-phenylnaphthalenes and 5-substituted benzofluoren-7(H)-ones have been synthesised and evaluated for their anti-hookworm activity against N. brasiliensis in rats.The compounds do not show any significant activity.During the reac