- Communications Faculty of Sciences University Ankara Series B Chemistry and Chemical Engineering
- Vol: 32 Issue: 01.02
- SYNTHESIS AND INVESTIGATION OF SUBTITUTED 2-AMINOTHIOPHENES FROM SULPHUR AND ACTIVE ME- HYLENE BEARI...
SYNTHESIS AND INVESTIGATION OF SUBTITUTED 2-AMINOTHIOPHENES FROM SULPHUR AND ACTIVE ME- HYLENE BEARING NITRILES
Authors : Vedia Ertüzün
Pages : 2-18
Doi:10.1501/Commub_0000000277
View : 5 | Download : 4
Publication Date : 1986-01-01
Article Type : Research
Abstract :Benzyl ■ a - cyano cynnamic acid, a nitrile with active methylene group has been synthesized. The reaction of this compound with sulphur in the presence of diethylamine gave 2-Amino-4,5-dıphenyl-3-cyanothiophene. In addition, a similar compound, 2-amino 4-ethyl-5-methyl-3-cyanothiophene has been obtained from sulphur and malonic acid dinitrile using the same amine as catalyst. The both thiophenes and their Schiff’s bases with salicylaldehyde and [3-Hydroxynaphtaldehyde have been investigated by uv, ir and 'H-nmr spectroscopy and pKa measurements in terms of substituent and heteroatom effects on various characteristics.Keywords : SYNTHESIS AND INVESTIGATION, HYLENE BEARING NITRILES, substituent and heteroatom effects