Effect of o-alkyl substituents in the metalation reactions of substituted anisoles
✍ Scribed by Harmon, Thomas E.; Shirley, David A.
- Book ID
- 126262531
- Publisher
- American Chemical Society
- Year
- 1974
- Tongue
- English
- Weight
- 307 KB
- Volume
- 39
- Category
- Article
- ISSN
- 0022-3263
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## Abstract The kinetic energy relased on the loss of a CH~3~ ⋅ radical from __para__ substituted anisoles appears to depend on the nature of the substituent. The application of the dual parameter equation of Yukawa and Tsuno yields a linear correlation with the __T__~0.5~‐values. The mesomeric eff
## Abstract Methyl‐, ethoxy‐, and phenyl‐substituted acrylonitriles undergo efficient 1,2‐photocyclo‐addition to 4‐cyanoanisole, but the azocine formation of the parent addend is inhibited by these groups. The regiochemistry, selectivity and efficiency of the cycloaddition of acrylonitrile to cyano
## Abstract Reactions of isopropyl and of undecyl radicals with __meta‐__ and __para__‐substituted toluenes are reported. The results demonstrate that the reactivities of toluenes are due to both benzyl‐H abstraction and addition of the alkyl radicals to the aromatic ring. Relative reactivities yie