Synthesis of D,L-alpha-tocopherol using 'microencapsulated' catalysts

Authors
Schager, F Bonrath, W
Citation
F. Schager et W. Bonrath, Synthesis of D,L-alpha-tocopherol using 'microencapsulated' catalysts, APP CATAL A, 202(1), 2000, pp. 117-120
Citations number
15
Categorie Soggetti
Physical Chemistry/Chemical Physics","Chemical Engineering
Journal title
APPLIED CATALYSIS A-GENERAL
ISSN journal
0926860X → ACNP
Volume
202
Issue
1
Year of publication
2000
Pages
117 - 120
Database
ISI
SICI code
0926-860X(20000731)202:1<117:SODU'C>2.0.ZU;2-D
Abstract
The synthesis of D,L-alpha-tocopherol starting from trimethylhydroquinone a nd isophytol using 'microencapsulated' catalysts, e.g. MC-(CF3SO2)(2)NH, is described. Scope and Limitations of this type of catalysts are discussed. Advantages of this new procedure are high yield and selectivity, no waste p roblem and mild reaction conditions. Best results in the synthesis of D,L-a lpha-tocopherol using MC-catalysts are obtained in polar solvents. The used catalyst could not be recovered. (C) 2000 Elsevier Science B.V. All rights reserved.