1311274-85-7

Upstream product

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• 676-58-4 methylmagnesium chloride 
• 329-15-7 4-trifluoromethyl-phenyl acetyl chloride 
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Relevant academic research and scientific papers

LACTONE COMPOUNDS AND MATERIALS MADE THEREFROM

The present invention relates to lactone compounds represented by the following Formulas I and II, and methods of making such lactone compounds. The present invention also relates to methods of making other materials from such lactone compounds, such as fused ring indenol compounds (e.g., indeno-fused naphthols), and fused ring indenopyran compounds (e.g., indeno-fused naphthopyrans).

PHOTOCHROMIC COMPOUNDS AND COMPOSITIONS

Described herein are compounds generally comprising an indeno[2',3':3,4]naptho[1,2-b] pyran structure. Such compounds may be useful for their photochromic properties, and be used in certain photochromic compositions. Such compositions may further comprise other photochromic compositions and/or materials. Additionally, such compounds and/or compositions may be suitable for preparing certain photochromic articles. Also described herein are methods for preparing certain photochromic compounds, compositions, and articles.

PHOTOCHROMIC COMPOUNDS AND COMPOSITIONS

Described herein are compounds (III) comprising an indeno[2',3', 3, 4] naptho [1,2-b] pyran structure. Such compounds may be useful for their photochromic properties, and be use in certain photochromic compositions. Such compositions may further comprise other photochromic compositions and/or materials. Additionally, such compounds and/or compositions may be suitable for preparing certain photochromic articles.