EventsThe 25th International Electronic Conference on Synthetic Organic Chemistry
Event submissions
Published
with-doi10.3390/ecsoc-25-11685
This submission belongs to the session S1. General Organic Synthesis of the event The 25th International Electronic Conference on Synthetic Organic Chemistry
Published date
14 Nov, 2021
Academic Editor
author-avatarJulio A. Seijas
Citation
Thies Thiemann, Abdullah Al-Hemyari, Muna Bufaroosha, Synthesis of 4′-alkoxy-4-(ω-cinnamoylalkoxy)azobenzenes and their photoswitchable behavior, in Proceedings of The 25th International Electronic Conference on Synthetic Organic Chemistry, 15 November–30 November 2021, MDPI: Basel, Switzerland, doi: 10.3390/ecsoc-25-11685
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Synthesis of 4′-alkoxy-4-(ω-cinnamoylalkoxy)azobenzenes and their photoswitchable behavior

Abdullah Al-Hemyari 1
Muna Bufaroosha 1
Thies Thiemann 2
1. Department of Chemistry, UAE University
2. Department of Chemistry, United Arab Emirates University
Abstract

In search of new thermotropic, photoswitchable materials, a number of 4′-alkoxy-4-(ω-cinnamoylalkoxy)azobenzenes were prepared. The synthetic procedure included O-alkylation of 4-nitrophenol, followed by reduction of the nitro group (H2, Pd/C), diazotization of the aniline and subsequent reaction with ω-hydroxyalkoxybenzenes, followed by a modified Appel-type esterification (BrCCl3, PPh3). The photochemical behavior of the substances was investigated.

Keywords
trans-cis photoisomerisation
cinnamates
modified Appel-type reaction
azobenzenes
Manuscript
sciforum_052150.pdf
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