The synthesis of D,L-a-tocopherol in supercritical carbon dioxide or nitrous oxide by condensation of trimethylhydroquinone (TMHQ) with isophytol (IP) in the presence of various Bro ¨nsted or Lewis acids, especially an imide or its metal salts, as catalysts is described. The product is obtained in h
✦ LIBER ✦
Hemmorrhagic toxicity of d-α-tocopherol in the rat
✍ Scribed by Osamu Takahashi; Hisatsugu Ichikawa; Mieko Sasaki
- Publisher
- Elsevier Science
- Year
- 1990
- Tongue
- English
- Weight
- 467 KB
- Volume
- 63
- Category
- Article
- ISSN
- 0300-483X
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## Abstract Benzoyl peroxide is a free‐radical generating compound widely used in the polymer industry and also in pharmaceuticals as antimicrobial agent to treat acne. However, benzoyl peroxide causes irritation and contact dermatitis in about 1% of patients. Concern over the use of this compound