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Unexpected Direction of Iodocyclization of 3-Allylthio-5-phenyl-4H-1,2,4-triazole.

✍ Scribed by V. I. Shmygarev; D. G. Kim


Publisher
John Wiley and Sons
Year
2005
Weight
14 KB
Volume
36
Category
Article
ISSN
0931-7597

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Cycloaddition Reactions of 7-Benzylidene
✍ Philip Clements; Georgeβ€…E. Gream; Paulβ€…K. Kirkbride; Simonβ€…M. Pyke πŸ“‚ Article πŸ“… 2005 πŸ› John Wiley and Sons 🌐 German βš– 328 KB

## Abstract An (__E__)/(__Z)__ mixture (3 : 2) of 7‐benzylidenecycloocta‐1,3,5‐triene (**5**) is obtained when 1‐benzylcycloocta‐1,3,5,7‐tetraene (**7**), prepared by an improved procedure, is treated with __t__‐BuOK in THF. Alternatively, a __ca.__ 9 : 1 mixture (__E__)/(__Z__)‐**5** can be prepar