Global ETD Search

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The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.

1	Convenient Preparation of 2,7,8-Trimethyl-6-Hydroxychroman-2-Carboxylic Acid (γ-Trolox) Hyatt, John 01 January 2008 (has links) The title chroman is useful in synthesis and as a water-soluble analog of γ-tocopherol, a member of the vitamin E family. This new synthesis of γ-trolox proceeds via selective aromatic demethylation of Trolox, the more easily available 2,5,7,8-tetramethyl homolog compound. This route is shorter than the previous synthesis, avoids the use of cyanide and methoxybutadiene, and requires no chromatography. aromatic demethylation decarbonylation tocol tocopherol tocotrienol trolox