Please use this identifier to cite or link to this item:
http://nopr.niscpr.res.in/handle/123456789/40879| Title: | Synthesis and properties of photochromic furofurans |
| Authors: | Laatsch, Hartmut Schmidt, Andreas Johann Kral, Andreas Heine, Niklas Haucke, Gunter |
| Issue Date: | Jun-1997 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | The deep blue-violet bis-o-quinonemethide 3 cyclizes thermally in a [4s+4a]cycloaddition reaction, yielding the colourless [3,2- b]furofurane 1a. The latter is re-opened by irradiation with UV light back to the methide in its Z,Z- configuration 2a. By metallation of 1a, the highly photoreactive acetylene 8a is obtained which again forms a methide under irradiation, but now in its E,E-configuration 3. The properties of this unique new photochromic system and related furofurans and alkyneshave been investigated. |
| Page(s): | 476-484 |
| ISSN: | 0975-0975(Online); 0376-4710(Print) |
| Appears in Collections: | IJC-A Vol.36A(06) [June 1997] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJCA 36A(6) 476-484.pdf | 1.59 MB | Adobe PDF | View/Open |
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