## Abstract The synthesis and the photochromic properties of new photochromic 6,7‐ and 7,8‐benzoindene annellated benzopyrans are described. When compared to parent indeno‐fused 2__H__‐chromenes (2__H__‐[1]benzopyrans), compounds **10** and **12** exhibit a significant bathochromic shift of maximum
Photophysics, photochemistry and kinetics of photochromic 2H-pyrans and chromenes
✍ Scribed by Christian Lenoble; Ralph S. Becker
- Publisher
- Elsevier Science
- Year
- 1986
- Weight
- 757 KB
- Volume
- 33
- Category
- Article
- ISSN
- 0047-2670
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