نتایج جستجو برای: volatile isothiocyanates

تعداد نتایج: 41822  

Journal: :Acta Chemica Scandinavica 1963

Journal: :Zeitschrift fur Naturforschung. C, Journal of biosciences 2008
Yeon-Suk Lee Junheon Kim Sang-Gil Lee Sang-Chul Shin Il-Kwon Park

Analysis by gas chromatography-mass spectrometry led to the identification of 26 compounds in Acorus gramineus essential oil. The antifungal activity of the identified compounds was tested singularly by using standard compounds. Allyl isothiocyanate and cis-asarone showed inhibition rates of 100% against P. cactorum at 28 mg/l air. In a test with C. parasitica and E. circinatum, allyl isothiocy...

Journal: :Bioscience, biotechnology, and biochemistry 2007
Hirokuni Tajima Yoshiaki Nakamoto Akira Taketo

The Effect of hydroxy isothiocyanates on a bacterial virus and M13 DNA was examined. Hydroxy-substituted phenyl and phenyl alkyl isothiocyanates, especially 2-(3,4-dihydroxyphenyl)ethyl isothiocyanate(IT-Dop) synthesized from dopamine, showed antiviral activity on psiK. In transfection experiments with M13 mp DNA species, IT-Dop inhibited the single-stranded (SS) molecule more effectively than ...

2013
György Matolcsy István Ujváry Lynn M. Riddiford Kiyoshi Hiruma

In search for selective anti-insect agents some monoand bis-isothiocyanates were prepared and tested on third instar larvae of Manduca sexta. The alkylene-bis-isothiocyanates 4, 5 and 6 had a novel effect preventing formation of the abdominal spiracles and of the hooks (crochets) at the following molt to the 4th instar. Some of these larvae died in the molt, while spiracles remained absent also...

Ali Varasteh Moradi

Simple three-component reactions between dialkyl acetylenedicarboxylate, primary amines and isothiocyanates in the presence of catalytic amount of ZnO nanorods are investigated in water at room temperature which produced thiazole derivatives in good yields.

2015
Franziska S. Hanschen Bunlong Yim Traud Winkelmann Kornelia Smalla Monika Schreiner Gabriele Berg

Brassicales species rich in glucosinolates are used for biofumigation, a process based on releasing enzymatically toxic isothiocyanates into the soil. These hydrolysis products are volatile and often reactive compounds. Moreover, glucosinolates can be degraded also without the presence of the hydrolytic enzyme myrosinase which might contribute to bioactive effects. Thus, in the present study th...

Journal: :Journal of cellular biochemistry. Supplement 1995
S S Hecht

Naturally occurring and synthetic isothiocyanates are among the most effective chemopreventive agents known. A wide variety of isothiocyanates prevents cancer in the rat lung, mammary gland, esophagus, liver, small intestine, colon, and bladder. Mechanistic studies have shown that this chemopreventive activity is due to favorable modification of phase I and phase II carcinogen metabolism, resul...

Journal: :The Plant cell 2001
V Lambrix M Reichelt T Mitchell-Olds D J Kliebenstein J Gershenzon

Glucosinolates are anionic thioglucosides that have become one of the most frequently studied groups of defensive metabolites in plants. When tissue damage occurs, the thioglucoside linkage is hydrolyzed by enzymes known as myrosinases, resulting in the formation of a variety of products that are active against herbivores and pathogens. In an effort to learn more about the molecular genetic and...

Journal: :European journal of nutrition 2013
Lawrence N Barrera Ian T Johnson Yongping Bao Aedin Cassidy Nigel J Belshaw

PURPOSE It is relatively unknown how different dietary components, in partnership, regulate gene expression linked to colon pathology. It has been suggested that the combination of various bioactive components present in a plant-based diet is crucial for their potential anticancer activities. This study employed a combinatorial chemopreventive strategy to investigate the impact of selenium and/...

Journal: :European Journal of Organic Chemistry 2023

A heating-induced desulfurization annulation of readily available CF3-imidoyl sulfoxonium ylides and isothiocyanates for the construction 2-trifluoromethylquinolines has been achieved. The developed transformation was performed under metal- additive-free conditions, producing a variety biologically valuable 2-trifluoromethylquinoline derivatives with high efficiency.

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