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Development of New Fluorescent Whitening Agent with 4,4'-Di((E)-styryl)-1,1'-biphenyl Skeleton Attached with Aromatic Ester from Recyclable Source MFB

재사용이 가능한 MFB로부터 Aromatic Ester가 도입된 4,4'-Di((E)-styryl)-1,1'-biphenyl의 골격을 갖는 새로운 Fluorescent Whitening Agent의 개발 연구

  • Alkhalaf, Norah. S. (Department of Applied Chemistry, Kookmin University) ;
  • Kim, Seok Chan (Department of Applied Chemistry, Kookmin University)
  • Received : 2018.01.22
  • Accepted : 2018.02.25
  • Published : 2018.06.10

Abstract

Methyl 4-formylbenzoate (MFB), a by-product of the DMT production process, which has been disposed, was used as a starting material for the synthesis of six new fluorescent whitening agent's candidates with 4,4'-di((E)-styryl)-1,1'-biphenyl skeleton attached with an aromatic ester, the same as that of the commercial product family. All candidates were synthesized by the reaction of MFB, and its derivatives with tetraethyl biphenyl-4,4'-diylbis(methylene)diphosphonate using Wittig-Horner reaction. UV spectra for all candidates were recorded and the data were used for calculating the molar absorptivity in order to confirm the usability as a fluorescent whitening agent. All of them showed overall molar extinction coefficients (log ${\varepsilon}$ 4.59~5.00) similar to those of conventional commercial products (log ${\varepsilon}$ 4.85). In particular, compounds 16 and 17 having a dimethoxyphenyl group exhibited a molar extinction coefficient superior to those of conventional commercial products, and thus a field testing for commercialization will be conducted.

Acknowledgement

Supported by : 국민대학교

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