Sensitized photooxidation of gurjunene: cleavages of the cyclopropane ring
✍ Scribed by Shô Itô; Hitoshi Takeshita; Masahiro Hirama; Yoshimasa Fukazawa
- Publisher
- Elsevier Science
- Year
- 1972
- Tongue
- French
- Weight
- 245 KB
- Volume
- 13
- Category
- Article
- ISSN
- 0040-4039
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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
IN 1953, Birch and Lahey' suggested for aromadendrene two alternative structures I and II with the cyclopropane ring in different pceitione, Ae aromadendrene on dehydrogenation affords S-guajazulene only, Birch et al, in their recent paper,2 prefer formula I. In view of the speculative character of
## Abstract One‐electron photooxidations of 5‐methyl‐2′‐deoxycytidine (d^m^C) and 5‐trideuteriomethyl‐2′‐deoxycytidine ([D~3~]d^m^C) by sensitization with anthraquinone (AQ) derivatives were investigated. Photoirradiation of an aerated aqueous solution containing d^m^C and anthraquinone 2‐sulfonate