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cis and trans Isomers of 2-Styrylpyridine

✍ Scribed by WILLIAMS, J. L. R.; WEBSTER, S. K.; ALLAN, J. A. Van

Book ID
111904344
Publisher
American Chemical Society
Year
1961
Tongue
English
Weight
366 KB
Volume
26
Category
Article
ISSN
0022-3263

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[2+2] Photodimerization of (Z)-4-styrylp
[2+2] Photodimerization of (Z)-4-styrylpyridine through a cation–π interaction: formation of cis–cis–trans dimers
✍ Shinji Yamada; Yuka Nojiri; Mai Sugawara πŸ“‚ Article πŸ“… 2010 πŸ› Elsevier Science 🌐 French βš– 281 KB

The cis-cis-trans cyclobutanes are prepared by photodimerization of (Z)-4-styrylpyridine. A catalytic amount of HCl plays a key role in enhancing the [2+2] photocyclization reactions between (Z)-and (E)-4-styrylpyridines to give r-cct and r-ctc cyclobutane dimers through a cation-p interaction.