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"Even" regioselectivity in [6 + 4] cycloadditions of unsymmetrical tropones with dienes

✍ Scribed by Garst, Michael E.; Roberts, Victoria A.; Houk, K. N.; Rondan, Nelson G.


Book ID
126968010
Publisher
American Chemical Society
Year
1984
Tongue
English
Weight
414 KB
Volume
106
Category
Article
ISSN
0002-7863

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## Abstract Regioselective 1,3‐dipolar cycloaddition of nitrilimines (generated in situ from dehydrohalogenation of the corresponding hydrazonoyl halides by the action of triethylamine) with 4‐arylidene‐1‐aryl‐2‐phenyl‐1__H__‐imidazol‐5(4__H__)‐one **3** afforded the corresponding spiro[4,4]nona‐2,