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A method to introduce a 3,3-dimethylallyl unit ortho to a phenol

✍ Scribed by R.D.H. Murray; M.M. Ballantyne; K.P. Mathai

Book ID
103401802
Publisher
Elsevier Science
Year
1970
Tongue
French
Weight
104 KB
Volume
11
Category
Article
ISSN
0040-4039

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ortho-Prenylphenol photooxygenation as a
ortho-Prenylphenol photooxygenation as a straightforward access to ortho-(2-hydroxy-3-methylbut-3-enyl)phenols
✍ Jean-Jacques Helesbeux; David Guilet; Denis SΓ©raphin; Olivier Duval; Pascal Rich πŸ“‚ Article πŸ“… 2000 πŸ› Elsevier Science 🌐 French βš– 112 KB

Photooxygenation ( 1 O 2 ) of ortho-prenylphenols followed by a reduction (PPh 3 ) at low temperature (^30 C) yields a mixture of ortho-(2-hydroxy-3-methylbut-3-enyl)phenols and ortho-(3-hydroxy-3-methylbut-1-enyl)phenols. However, by running the two-step sequence at a higher temperature (15 C), the