## Abstract magnified image Naphtho[2,1‐__b__]pyran nuclei are prevalent in natural products with significant biological and medicinal properties. 3,3‐Disubstituted 3__H__‐naphtho[2,1__‐b__]pyrans are photochromic and find use in electronic display systems, ophthalmic lenses, optical switches, and
✦ LIBER ✦
Some reactions with 3-Methyl-1H-naphtho[2,1-b]pyran-1-one
✍ Scribed by Prof. Dr. A. Sammour; Dr. T. Zimaity; Dr. S. Kamel
- Publisher
- John Wiley and Sons
- Year
- 1972
- Tongue
- English
- Weight
- 434 KB
- Volume
- 314
- Category
- Article
- ISSN
- 1615-4150
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Single-crystal X-ray study T = 293 K Mean '(C±C) = 0.004 A Ê R factor = 0.031 wR factor = 0.094 Data-to-parameter ratio = 7.3 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.