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Formation of 1,2-dioxolane in the singlet oxygenation of cyclopropane

โœ Scribed by Takeshi Akasaka; Koichiro Fukuoka; Wataru Ando


Publisher
Elsevier Science
Year
1991
Tongue
French
Weight
297 KB
Volume
32
Category
Article
ISSN
0040-4039

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๐Ÿ“œ SIMILAR VOLUMES


Formation of 1,2-dioxolane in the single
โœ Wataru Ando; Masahiro Kako; Takeshi Akasaka; Shigeru Nagase; Takatoshi Kawai; Ya ๐Ÿ“‚ Article ๐Ÿ“… 1989 ๐Ÿ› Elsevier Science ๐ŸŒ French โš– 283 KB

Singlet oxygenation of 1,1,2,2-tetramesityl-1,2-disilirane la afforded the corresponding cyclic peroxide 3a . Trapping experiments and theoretical studies of the initially formed peroxidic intermediate were also carried out. Peroxonium ion type intermediate is required to rationalize the results. M

Singlet oxygenation of cycloheptatriene:
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Tetraphenylporphyrin-sensitized photooxygenation of cycloheptatriene afforded the 1,2-dioxetane (3 ) in 9% yield, %% thus completing the set of possible cycloa dition products; the 1,2-dioxetane (&$ 1s the precursor to the benzaldehyde product, but not the (2+6)-cycloadduct (&).

Singlet oxygenation of cycloocta-1,3,5-t
โœ Waldemar Adam; Ihsan Erden ๐Ÿ“‚ Article ๐Ÿ“… 1979 ๐Ÿ› Elsevier Science ๐ŸŒ French โš– 216 KB

Photosensitized singlet oxygenation of 1,3,5-cyclooctatriene affords the (4.2.2)-and (2.2.2)-type endoperoxides, which were reduced with diimide, thermally isomerized, and deoxygenated with triphenylphosphine. Cycloocta-1,3,5-triene (k) is a versatile substrate for cycloaddition in view of its dive