• Title/Summary/Keyword: 4-fluorobenzaldehyde

Search Result 2, Processing Time 0.017 seconds

Synthesis and Biological Evaluation as a Potential Allylamine Type Antimycotics (알릴아민 항진균제의 합성과 생물학적 평가)

  • 정병호;조원제;천승훈;정순영;유진철
    • YAKHAK HOEJI
    • /
    • v.47 no.5
    • /
    • pp.293-299
    • /
    • 2003
  • Structure-activity relationship studies of allylamine type of antimycotics were carried out to evaluate the effect of naphthyl and methyl portion of naftifine. Compounds with 4-fluorophenyl(2a-5a), 2-fluorophenyl(2b-5b), 2,4-dichlorophenyl(2c-5c), 2,6-dichlorophenyl(2d-5d), 4-nitrophenyl(2e-5e), and 2,3-dihydro-benzo[1,4]dioxan-6-yl( 2f-5f) instead of naphthyl group with hydrogen(3a-3f), methyl(4a-4f), and ethyl(5a-5f) in the place of methyl in naftifine were synthesized and tested their in vitro anti-fungal activity against five different fungi. Eight compounds(3a, 5a, 3c, 4c, 4d, 5d, 5e, and 4f) showed significant antifungal activity against T. mentagrophytes. (E)-N-Ethyl-(3-phenyl-2-propenyl)-4-nitro-benzenemethaneamine(5e) displayed moderate antifungal activity against all five different fungi.

Oxidation of Aromatic Aldehydes with Tetrabutylammonium Fluoride:Competition with the Cannizzaro Reaction

  • Chung, Kyoo-Hyun;Lee, Jae Hak;Chi, Dae Yoon;Moon, Byung-Chul;Lim, Choong Hwan;Kim, Jin Pil
    • Bulletin of the Korean Chemical Society
    • /
    • v.27 no.8
    • /
    • pp.1203-1205
    • /
    • 2006
  • During the synthesis of 4-fluorobenzaldehyde via the SNAr reaction of 4-nitrobenzaldehyde with TBAF, it was found that an equivalent amount of TBAF could oxidize benzaldehyde to benzoic acid. The reaction of 4-nitrobenzaldehyde with tetrabutylammonium fluoride (TBAF) gave 4-nitrobenzoic acid in high yield. Depending on the reaction conditions, other aromatic aldehydes produced acids with fewer amounts of alcohols. However, this type of oxidation has limited practical applications. Nevertheless, the mechanism is quite different from the Cannizzaro reaction because the amounts of the acid salt and alcohol formed were different.