ORGANIC SPECTROSCOPY INTERNATIONAL: 1,2-bis[4-aminophenoxy]ethane

The FT-IR spectrum of diamine 7 showed two peaks at 3406 and 3327 cm^-1, which were assigned to the NH₂ groups.

6.66-6.69 (d, 4H, J= 9 Hz), 6.48-6.51 (d, 4H, J= 9 Hz), 4.63 (s, 4H), 4.07 (s, 4H) ppm.

¹³C-NMR (300 MHz, DMSO-d₆): 8; 150.0, 143.0, 115.8, 115.3, 67.3 ppm.

Elemental
¹H-NMR spectrum of diamine 7 showed peaks as a doublet of doublet at 6.66-6.69 ppm and 6.48-6.51 ppm were assigned to the H(a) and H(b) related to aromatic protons, and a singlet peak at 4.07 ppm which was assigned to the H(d) protons of the NH₂ groups in this compound

1,2-bis[4-aminophenoxy]ethane 7 was synthesized according this method: At first 1,2-bis[4,4'-nitrophenoxy] ethane 6 was prepared from the reaction of two equimolars p-nitrophenol 5 and one equimolar 1,2-dibromo ethane 4. Then dinitro compound 6 was reduced by using 10% Pd-C, ethanol and hydrazine monohydrate (Scheme 1).

http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072010000400018&lng=pt&nrm=iso&tlng=pt

Journal of the Chilean Chemical Society

versão On-line ISSN 0717-9707

J. Chil. Chem. Soc. vol.55 no.4 Concepción dez. 2010

http://dx.doi.org/10.4067/S0717-97072010000400018

J. Chil. Chem. Soc., 55, N⁰ 4 (2010)
PREPARATION OF NEW OPTICALLY ACTIVE AND THERMALLY STABLE POLY(AMIDE-IMIDE) CONTAINING BICYCLO SEGMENT AND ETHER GROUP IN THE MAIN CHAIN BY DIRECT POLYCONDENSATION IN TWO DIFFERENT MEDIA

KHALIL FAGHIHI¹*, MEISAM SHABANIAN²
¹Polymer Research Laboratory, Department of Chemistry, Faculty of Science, Islamic Azad University, Arak Branch, Arak, Iran.
² Islamic Azad University, Arak branch, Young Researchers Club, Araky, Iran

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