In our previous studies (1,2) on the sensitized photooxidation of thujapsene (la) and thuiapsenol (lb), we hove demonstmted the formation of considerable amounts of C=C bond cleavage products, the ketoaldehydes (Ila and Ilb) and those formed therefrom, in addition to allylic alcohols (e.g. Ill) and
Sensitized photooxidation of thujopsene: Synthesis of thujopsadiene
✍ Scribed by Shô Itô; Hitoshi Takeshita; Takeo Muroi; Masaaki Ito; Kazuo Abe
- Publisher
- Elsevier Science
- Year
- 1969
- Tongue
- French
- Weight
- 233 KB
- Volume
- 10
- Category
- Article
- ISSN
- 0040-4039
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✦ Synopsis
Although the sensitized photooxidation of various types of organic compounds have been studied extensively by a number of workers (I), the known examples of reactions of compounds having a cyclopropane in the a position to on olefinic linkage crre limited, as far as we know, to the following three cases: (-)cis-A2-carene (2), (+)-A3carene (3) and (+)a-thuiene (4).
In these cases, the cyclopropyl
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The oxidation of isoeugenol to a variety of canpow& is well docwnented in the literature (l-5). We have extended this research by examining the effect of dye-sensitized photooxidation on isoeugenol (I), a mananer that has been ifirplicated in the biosynthesis of lignin (6). I Isolation of \*llignol