Synthesis of Monomers for the Preparation of Regiospecifically Substituted Poly(Phenylacetylenes) as Potential Chemical Detectors

A number of substituted phenylacetylenes have been prepared as precursors to poly(phenylacetylenes) having regiospecific substitution. These latter were required for a study attempting to correlate structure with electronic properties, especially conductivity. The following phenylacetylenes were pre...

Full description

Saved in:
Bibliographic Details
Main Authors: Wentworth,S E, Libby,J B, Bergquist,P R
Format: Report
Language:English
Subjects:
ACETIC ANHYDRIDE
ASH84
BROMINATION
CHEMICAL AGENT DETECTORS
Chemical, Biological and Radiological Warfare
CINNAMIC ACID
FLUORINE COMPOUNDS
MONOMERS
NITROGEN COMPOUNDS
Organic Chemistry
PE62105A
Poly(Phenylacetylenes)
Regiospecific substituents
SUBSTITUTION REACTIONS
SYNTHESIS(CHEMISTRY)
Online Access:Request full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A number of substituted phenylacetylenes have been prepared as precursors to poly(phenylacetylenes) having regiospecific substitution. These latter were required for a study attempting to correlate structure with electronic properties, especially conductivity. The following phenylacetylenes were prepared: o-, m-, and p-nitrophenylacetylene, p-trifluoromethylphenylacetylene, o-and p-aminophenylacetylene (m-commercially available), o-, m-, and p-acetamido, and m- and p-trifluoroacetamidophenylacetylene. Starting materials were the appropriate nitro or trifluoromethyl cinnamic acids. Bromination followed by dehydrobromination and decarboxylation gave the corresponding phenylacetylenes. The amino compounds were obtained by Zn/NH4OH reduction of the o- and p-nitrophenyl-acetylenes. Acylations were accomplished with acetic or trifluoroacetic anhydride. (Author) Presented at Mid-Atlantic Regional Meeting, Americal Chemical Society, White Haven, PA Apr 83.