Study on the synthesis and spectra of 2-thenoyl-2-carbazolyl-N-butyltrifluoroacetone].

Qian Yu, Zong-ming Luo, Chi Yang, Yan-xiong Fang, Kun Zhang, Xian-yi Cao

Faculty of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510090, China.

Guang pu xue yu guang pu fen xi = Guang pu 2004 Feb

filter terms:

In phene-50% NaOH medium, 1,4-dibromobutane reacts with carbazole (CZ) to form N-bromobutylcarbaole (BCZ) at 70-80 degrees C. The 2-thenoyl-2-carbazolyl-N-butyltrifluoroacetone (TCBTA) was synthesized by reaction of BCZ with 2-thenoyltrifluoroacetone (TTA) in acetone-K2CO3 medium at 50 degrees C. The TCBTA is a light brown crystal with m.p. of 211-214 degrees C. The structure of the synthesized TCBTA was characterized by UV, IR and GC/MS, and the UV and IR spectra of CZ, BCZ and TTA have been studied. In chloroform, TCBTA has three maximum absorptions at 241, 265 and 295 nm whose molar absorptivity is 1.88 x 10(5), 1.25 x 10(5) and 1.08 x 10(5) L x mol(-1) x cm(-1), respectively. Extraction rate of iron(III) and neodymium(III) by TCBTA in chloroform rises by 3 and 1.6 times compared with TTA. The fluorescence of TCBTA-Nd(III) complex is 5 times higher than TTA-Nd(III) complex. It was shown that TCBTA has excellent photosensitivity.

Citation

Qian Yu, Zong-ming Luo, Chi Yang, Yan-xiong Fang, Kun Zhang, Xian-yi Cao. Study on the synthesis and spectra of 2-thenoyl-2-carbazolyl-N-butyltrifluoroacetone]. Guang pu xue yu guang pu fen xi = Guang pu. 2004 Feb;24(2):162-5