Synthesis and Study the Mesomorphic Behaviour of New N- acetyl and Their Diazetine: Mono and Twin

Thaer S. Ghali; Jumbad H. Tomma

doi:10.30526/31.1.1856

Article Details

Synthesis and Study the Mesomorphic Behaviour of New N- acetyl and Their Diazetine: Mono and Twin

Authors:

Thaer S. Ghali | Jumbad H. Tomma

Publisher:

University of Baghdad

Journal:

Ibn AL-Haitham Journal For Pure and Applied Sciences Vol.31 Issue 1, pp.88-98

Document Type:

Article

Publication Date:

5/2018

Document Language:

English

Document ID (Org No.):

2001377619

pISSN:

2521-3407

DOI:

10.30526/31.1.1856

Keywords:

Abstract:

 Synthesis ,characterization of new mono and twin  compounds containing heterocyclic four member ring as, 1,3- diazetine by four steps. The first step; includes  preparation of 2- amino thiazole derivatives [I]a-c via ring closure reaction between acetophenone derivatives   with thiourea in I2,  while the second step includes condensation reaction between 2-amino thaizole derivatives[I]a-c and  p-methoxy benzaldehyde to produce Schiff bases[II]a-c. The third step includes neculophilic attach from imine group toacetyl chloride to give N- acetyl cross bonding[III]a-c.Finally ; the  fourth step is completed by the reaction of N- acetyl derivatives with sodium azide (NaN3) to yield  new 1,3-diazetines. The synthesized compounds were characterized byNMR and IR spectroscopy .The study of liquid crystalline behaviour was carried out using optical polarising microscopy (OPM) and some of them by differential  scanning  calorimetry (DSC) . All compounds were synthesized which showed liquid crystalline properties on heating.

Article Details

Synthesis and Study the Mesomorphic Behaviour of New N- acetyl and Their Diazetine: Mono and Twin

Authors:

Thaer S. Ghali | Jumbad H. Tomma

Publisher:

University of Baghdad

Journal:

Ibn AL-Haitham Journal For Pure and Applied Sciences Vol.31 Issue 1, pp.88-98

Document Type:

Article

Publication Date:

5/2018

Document Language:

English

Document ID (Org No.):

2001377619

pISSN:

2521-3407

DOI:

10.30526/31.1.1856

Thiazoles

heterocyclic liquid crystal

N- acetyl derivatives

diazetines

Issues

Article Details

Synthesis and Study the Mesomorphic Behaviour of New N- acetyl and Their Diazetine: Mono and Twin

Authors: Thaer S. Ghali | Jumbad H. Tomma

Publisher: University of Baghdad

Journal: Ibn AL-Haitham Journal For Pure and Applied Sciences Vol.31 Issue 1, pp.88-98

Document Type: Article

Publication Date: 5/2018

Document Language: English

Document ID (Org No.): 2001377619

pISSN: 2521-3407

DOI: 10.30526/31.1.1856

Thiazoles

heterocyclic liquid crystal

N- acetyl derivatives

diazetines

Issues

Authors:

Thaer S. Ghali | Jumbad H. Tomma

Publisher:

University of Baghdad

Journal:

Ibn AL-Haitham Journal For Pure and Applied Sciences Vol.31 Issue 1, pp.88-98

Document Type:

Article

Publication Date:

5/2018

Document Language:

English

Document ID (Org No.):

2001377619

pISSN:

2521-3407

DOI:

10.30526/31.1.1856