## Abstract Radical addition to 7‐oxabicylco[2.2.1]hept‐5‐en‐2‐one (1) was examined from a regiochemical point of view, and despite the small electronic anisotropy of the double bond, electrophilic radicals were found to add preferentially at C(5) with selectivities of up to 5:1. We also report the
Radical additions to silyl ketene acetals. Introduction of C-moieties to 7-oxabicyclo[2.2.1]hept-5-en-2-endo-ol
✍ Scribed by Philippe Renaud; Jean-Paul Vionnet; Pierre Vogel
- Publisher
- Elsevier Science
- Year
- 1991
- Tongue
- French
- Weight
- 260 KB
- Volume
- 32
- Category
- Article
- ISSN
- 0040-4039
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📜 SIMILAR VOLUMES
Addition of molecular fluorine m 7-oxabicyclo[2.2.1]hept-2-ene derivative (1) has been found to give exo,exo-difluoro adduct in fair yield. The adduct was converted to various 2,3-difluefo ribofuranosides and 2,3-ditlu~o dbofunmosyl acetate derivatives were transformed selectively to [~pyrimidine nu
Addition of Molecular Fluorine to 7-Oxabicyclo(2.2.1)hept-5-ene Derivative and Conversion to Fluorine Substituted Deoxyhexofuranosides. -Addition of F2 to the 7-oxabicycloheptene (I) yields the exo,exodifluoro adduct (II) in fair yield. (II) can be transformed into pyrimidine nucleoside analogues s
## Abstract In view of the significance of steric compression in the base‐catalyzed intramolecular cyclization of polycyclic olefinic alcohols, the standard enthalpies of formation of __anti__^9,10^‐10 __endo__‐hydroxytricyclo [4.2.1.1^2,5^]deca‐3,7‐dien‐9‐one **(1)** and 9‐oxatetracyclo [5.4.0.0^3