نتایج جستجو برای: benzoic acids

تعداد نتایج: 268061  

Journal: :Acta pharmaceutica 2004
Milena Jadrijević-Mladar Takac Drazen Vikić Topić

The 2,4- and 2,5-dihydroxybenzamides (8, 9) were synthesized from their corresponding methyl esters. The structures and the spectral properties of investigated salicylic acid (1), 2,4- and 2,5-dihydroxy benzoic acids (2, 3), their methyl esters (4-6) and amides (7-9) were analyzed by means of FT-IR and one- and two-dimensional homo- and heteronuclear 1H and 13C NMR spectroscopies. Comparison of...

2011
Joseph M. DiTomaso

Since the synthesis of 2,4-D, a number of other synthetic auxins have become commercially available. Although these products are referred to as growth regulators or phytohormones (previously known as plant hormones), they really represent only one group of growth regulators, the auxins. Auxins can be divided into six major groups; indole acids, naphthalene acids, phenoxy carboxylic acids, benzo...

2016
Margit Winkler Christoph K. Winkler

ABSTRACT The first carboxylate reductase from Trametes versicolor was identified, cloned, and expressed in Escherichia coli. The enzyme reduces aromatic acids such as benzoic acid and derivatives, cinnamic acid, and 3-phenylpropanoic acid, but also aliphatic acids such as octanoic acid are reduced. GRAPHICAL ABSTRACT

Journal: :Angewandte Chemie 2023

Allylation. In their Communication (e202301839), Lukas J. Gooßen et al. report a simple manganese catalyst for the ortho-C−H allylation of benzoic acids. The reaction can be combined with an in situ decarboxylation, giving access to allylarenes substitution patterns that are otherwise hard obtain.

2018
Frederik Diness Niels J Bjerrum Mikael Begtrup

Reactivity studies of strong organic acids based on the replacement of one or both of the oxygens in benzoic acids with the trifluoromethanesulfonamide group are reported. Novel derivatives of these types of acids were synthesized in good yields. The generated N-triflylbenzamides were further functionalized through cross-coupling and nucleophilic aromatic substitution reactions. All compounds w...

Journal: :The Journal of antibiotics 2003
Karsten Krohn Brigitta Elsässer Sándor Antus Krisztina Kónya Eberhard Ammermann

The structure of the antifungal metabolite coniothyriomycin was systematically modified by changing the acids of the open chain imide, modification of the hydrophobicity, variation in the degree of saturation, replacement of carbons by nitrogen or oxygen, and incorporation of the open chain molecule into cyclic arrangements. Structure-activity studies showed that antifungal activity was retaine...

Journal: :The Journal of antibiotics 1993
R J Cannell M J Dawson R S Hale R M Hall D Noble S Lynn N L Taylor

Feeding of fluorinated benzoic acids to fermentations of a Phoma sp. resulted in the biosynthesis of a series of novel fluorinated squalestatins. The feeding studies, isolation, structural elucidation and biological activities of these compounds are reported.

Journal: :IOP conference series 2023

Abstract The experiment was carried out in a greenhouse at the University of Diyala’s Research Station for Department Horticulture and Landscaping College Agriculture during 2020–2021 academic year. Experiments were conducted on Catharanthus roseus cv. ‘Pacifica XP’ from November 24, 2020, to June 1, 2021, effects adding copper 0, 30, 45, 60 mg L -1 , foliar spraying with benzoic salicylic acid...

Journal: :Journal of Research of the National Bureau of Standards Section A: Physics and Chemistry 1967

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید