Topic
Benzopyran
About: Benzopyran is a research topic. Over the lifetime, 1889 publications have been published within this topic receiving 15235 citations.
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Patent•
12 Dec 2003
TL;DR: In this paper, novel benzopyran analogs are disclosed and methods for the lowering and controlling of normal or elevated intraocular pressure as well as a method for the treatment of glaucoma using compositions containing one or more of the compounds of the present invention.
Abstract: Novel benzopyran analogs are disclosed. Also disclosed are methods for the lowering and controlling of normal or elevated intraocular pressure as well as a method for the treatment of glaucoma using compositions containing one or more of the compounds of the present invention.
9 citations
TL;DR: On the other hand, this paper showed that on heating under reflux in dry MeOH, aliphatic nitrones 2a−d produce corresponding carboxylic acids 4 but aromatic nitrones 1a−D give aldehyde 1.
Abstract: On hydrolysis with 70% H2SO4, aliphatic nitrones 2a–d produce the corresponding carboxylic acids 4 but aromatic nitrones 2e, f give aldehyde 1. On heating under reflux in dry MeOH, 2a–d rearrange t...
9 citations
TL;DR: An indolinospiropyran possessing one long alkyl chain on the nitrogen atom of the indoline moiety and two nitro groups on the benzopyran ring, exhibiting negative photochromism in various organic s...
Abstract: An indolinospiropyran possessing one long alkyl chain on the nitrogen atom of the indoline moiety and two nitro groups on the benzopyran ring, exhibiting negative photochromism in various organic s...
9 citations
TL;DR: The crystal structure of syn-1-acetyl-9′a-hydro-8′-methoxyspiro [3H-indole-3,2′(2a′H) oxeto [3, 2-g]furo[3, 1]-pyran-2, 6′-dione 1 was determined by X-ray diffraction analysis as discussed by the authors.
Abstract: The crystal structure of syn-1-acetyl-9′a-hydro-8′-methoxyspiro[3H-indole-3,2′(2a′H) oxeto[3,2-g]furo[3,2-g]benzo[ b]pyran-2,6′-dione 1 was determined by X-ray diffraction analysis. It possesses P2(1)/c space group symmetry, with a = 12.391(3), b = 15.035(3), c = 9.5435(19) A, β = 93.66(3)○, and D
calc. = 1.517 Mg/m3 for Z = 4.
9 citations