PDF herunterladen
Synlett 1996; 1996(11): 1045-1046
DOI: 10.1055/s-1996-5672
letter
© Georg Thieme Verlag, Rüdigerstr. 14, 70469 Stuttgart, Germany. All rights reserved. This journal, including all individual contributions and illustrations published therein, is legally protected by copyright for the duration of the copyright period. Any use, exploitation or commercialization outside the narrow limits set by copyright legislation, without the publisher's consent, is illegal and liable to criminal prosecution. This applies in particular to photostat reproduction, copying, cyclostyling, mimeographing or duplication of any kind, translating, preparation of microfilms, and electronic data processing and storage.

Practical Synthesis of (±)-α-Tocopherol. Trifluoromethanesulfonimide as an Extremely Active Brønsted Acid Catalyst for the Condensation of Trimethylhydroquinone with Isophytol

Kazuaki Ishihara, Manabu Kubota, Hisashi Yamamoto*
  • *Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa, Nagoya 464-01, Japan, Fax: 81-52-789-3222
Weitere Informationen

Publikationsverlauf

Publikationsdatum:
31. Dezember 2000 (online)

  als PDF herunterladen  Lizenzen und Reprints Alle Artikel dieser Rubrik

Trifluoromethanesulfonimide (triflimide) is an extremely active Brønsted acid catalyst for the condensation of trimethylhydroquinone with isophytol; the reaction in hexane proceeds smoothly in the presence of 1 mol% of triflimide under reflux.

α-tocopherol - trifluoromethanesulfonimide - Brønsted acid

      >