Synthesis and Photochemistry of Tertiary Amine Photobase Generators

Synthesis and Photochemistry of Tertiary Amine Photobase Generators

A family of tertiary amine photobase generators have been prepared and studied. The compounds investigated were quaternary ammonium salts of benzhydrylamine (aminodiphenylmethane) and 9-aminofluorene. The compounds were prepared by the following methods:  methylation of the benzhydryl or fluorenylam...

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Veröffentlicht in:Chemistry of materials 2002-02, Vol.14 (2), p.918-923
Hauptverfasser: Jensen, Kathryn H, Hanson, James E
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Condensed matter: structure, mechanical and thermal properties
Exact sciences and technology
Physics
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Hanson, James E
description A family of tertiary amine photobase generators have been prepared and studied. The compounds investigated were quaternary ammonium salts of benzhydrylamine (aminodiphenylmethane) and 9-aminofluorene. The compounds were prepared by the following methods:  methylation of the benzhydryl or fluorenylamines, reaction of a tertiary amine with 9-bromofluorene, and reaction of a primary or secondary amine with 9-bromofluorene followed by exhaustive methylation. Alkylation was limited to methylation in the benzhydryl system, as larger alkyl groups would not react. This appears to be a result of steric hindrance. The fluorenyl system allowed for a wider variation in the synthesis of tertiary amine photobase generators. Examination of the solution photochemistry by NMR spectroscopy supported a heterolytic mechanism for photodecomposition.
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Exact sciences and technology
Physics
title Synthesis and Photochemistry of Tertiary Amine Photobase Generators
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