Synthesis and Bleaching Activity of 1,5-Disubstituted Imidazoles

Naotaka Yamada, Eiichi Kuwano, Masamichi Kikuchi, Morifusa Eto

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

A variety of 1,5-disubstituted imidazoles and related compounds were prepared, and their bleaching activity was evaluated by using the lettuce seedling test. 5-(4-Benzyloxyphenyl)-l-ethylimidazole (13) caused clear chlorosis, while the 2- and 3-benzyloxyphenyl analogs had no activity. In the 5-(4-benzyloxyphenyl)imidazole series, only the 1-propyl analog showed significant activity, as well as compound 13. Both substituents at the 1- and 5-position of the imidazole ring were indispensable for this activity. Of the series of compounds tested, l-ethyl-5-stilbenylimidazole (22) and 5-[4-(3-chlorobenzyloxy)phenyl]-l-ethylimid-azole (33) showed the highest activity. Compound 33 at 30 ppm decreased the chlorophyll content in the lettuce seedlings to less than 20% of that in the control.

Original languageEnglish
Pages (from-to)1943-1948
Number of pages6
JournalBioscience, Biotechnology, and Biochemistry
Volume56
Issue number12
DOIs
Publication statusPublished - Jan 1 1992

Fingerprint

Imidazoles
Lettuce
Bleaching
Seedlings
Hypochromic Anemia
Azoles
Chlorophyll
imidazole

All Science Journal Classification (ASJC) codes

  • Analytical Chemistry
  • Biotechnology
  • Biochemistry
  • Applied Microbiology and Biotechnology
  • Molecular Biology
  • Organic Chemistry

Cite this

Synthesis and Bleaching Activity of 1,5-Disubstituted Imidazoles. / Yamada, Naotaka; Kuwano, Eiichi; Kikuchi, Masamichi; Eto, Morifusa.

In: Bioscience, Biotechnology, and Biochemistry, Vol. 56, No. 12, 01.01.1992, p. 1943-1948.

Research output: Contribution to journalArticle

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