A Novel Synthesis, Characterization and Studying of Alkynes dimers

Abstract

In recent years, it has been increased interest in the synthesis and Characterization of different chemical. This study deals with the synthesis of four novel monomers of terminal acetylene, and their reactivity by the oxidative coupling to synthesize of diacetylene, which are:

P–ethanmide -3-phenoxy—propa-1-yne).  (2P), P–(2-amino–propanoicacid)-3-phenoxy –propayne. (2T), Mercapto – (2-amino –propanoic acid) -3-propyne. (2S), m- carbaldehyde-3-phenoxy –propayne. (2M) and Six dimers are Synthesis, four of them are Homo Diacetylene, which are 1,6 –diphenoxy - p – Ethan amide -2,4-hexa-di- yne. (3P), 1,6 -diphenoxy – p - (2-Amino-propanoic acid)- 2,4-hexa- diy-ne(3T), 1,6 - diphenoxy –m - Carbaldehyde-2,4-hexa-di-yne. (3M) and 2,4 –hexadi-yne- di- (propion amino carboxylic acid) – dithiol. (3S), and the other two are Hetero Diacetylene: (1- (2-amino –propanoic acid-3- phenoxy) -6- (m- carbaldehyde-3-phenoxy) -2,4- hexa di-yne). (P-T), (1- (m-Carbaldehyde-3-phenoxy) -6-(Ethanamide -3- phenoxy) - 2,4-hexa di-yne). (P-M).

Polymer composites Has been prepared from diacetylene on the polystyrene (Psty + Dimers) and it is done by carrying the compounds (dimers) that doped with iodine. The study of electrical conductivity (EC) is done to prepared composites and the composites gave the characteristics of the semiconductors, It was also characterized by (HNMR, 13C), FTIR) spectrum and melting point. The results were obtained good agreement with the hypothetical case.