Gas phas thermal reactions of aromatic ethers; Generation of p-xylylene and its derivative by zinc induced dehalogenation.

摘要

For several years, work in Trahanovsky's group has focused on gas phase thermal reactions of some aromatic ethers and generation of p-xylylene and derivatives by flash vacuum pyrolysis techniques. These studies involve synthesis of a series of aromatic ethers and some precursors of p-xylylene derivatives. This thesis is divided into two parts. Part 1 of this thesis presents a preliminary investigation of mechanistic studies of aromatic ethers. The studies involved deuterium labelling, pyrolysis product analysis, and low temperature isolation. In Part 2 a new methodology to synthesize p-xylylene and to attempt to synthesize (alpha),(alpha)(prime)-di-t-butyl-p-xylylene is presented in detail. In these studies, the preparation of (alpha),(alpha)(prime)-dichloro-(alpha),(alpha)(prime)-di-t-butyl-p- xylene is described. 18 figs., 4 tabs. (ERA citation 15:035196)