Results 311 to 320 of about 5,518,817 (336)

Oxidative phenol-arene and phenol-phenol cross-coupling using periodic acid

Tetrahedron, 2019
Abstract A simple, metal-free protocol for unsymmetrical biaryl coupling using H5IO6 is reported. H5IO6 was evaluated for a novel application in the oxidative cross-coupling of phenol-arene, phenol-phenol, and phenol-naphthol compounds. In this work, most of the couplings were completed within 30 min at ambient temperature.
Peng-Cheng Gao, Huan Chen, Vladimir Grigoryants, Qiang Zhang   +3 more
openaire   +1 more source

Shikimic Acid Pathway: Phenols

2023
Plant metabolites having one or more hydroxyl groups attached to an aromatic ring are known as phenols. Phenols are a heterogeneous group of compounds. One of the most important functions of phenols is in plant communication e.g., allelopathy, attracting pollinating and disseminating agents, attracting symbiotic bacteria, and inhibiting pathogens and ...
openaire   +1 more source

Chemical Peels: Trichloroacetic Acid and Phenol

Dermatologic Clinics, 1995
Chemical peeling is the most widely used modality for treating photoaged skin. The classification, indications, techniques, complications, and histology of two of the most widely used peeling agents, trichloroacetic acid and phenol, are presented.
R G, Glogau, S L, Matarasso
openaire   +2 more sources

Phenolic acids and phenolic glycosides of Gaultheria species

Phytochemistry, 1966
Abstract Twenty-two species of Gaultheria were examined for phenols and phenolic acids obtained by hydrolysis of ethanolic extracts. Most species yielded p -hydroxybenzoic, o -pyrocatechuic, protocatechuic, gentisic, vanillic, p -coumaric, caffeic and ferulic acids.
G.H.N. Towers, Aida Tse, W.S.G. Maass
openaire   +1 more source

A Phenol-extracted Bacterial Deoxyribonucleic Acid

Nature, 1957
IN the course of extraction of highly polymerized bacterial deoxyribonucleic acid from Brucella abortus cells first killed with 0.5 per cent phenol and then exposed to sodium deoxycholate, it was discovered that phenol treatment alone results in the recovery of material high in content of deoxyribonucleic acid.
W, BRAUN, J W, BURROUS, J H, PHILLIPS
openaire   +2 more sources

PHENOL (CARBOLIC ACID) GANGRENE

Journal of the American Medical Association, 1911
Although many cases of gangrene from the use of phenol have been reported in recent years, they were mostly the result of the application of wet phenol dressings to the fingers or toes. In the case which I report here, the gangrene was due to the use of phenolized petrolatum in treating a bruised finger-end. The ring fingerwas affected.
openaire   +1 more source

Structure-antioxidant activity relationships of flavonoids and phenolic acids.

Free Radical Biology & Medicine, 1996
C. Rice-evans, N. Miller, G. Paganga
semanticscholar   +1 more source

Biosynthesis and metabolic actions of simple phenolic acids in plants

Phytochemistry Reviews, 2020
R. Marchiosi, W. D. dos Santos, R. P. Constantin, Rogério Barbosa de Lima, Anderson Ricardo Soares, Aline Finger-Teixeira, Thatiane R. Mota, Dyoni M. Oliveira, Marcela de Paiva Foletto-Felipe, J. Abrahão, O. Ferrarese‐Filho   +10 more
semanticscholar   +1 more source

Carboxylic Acids and Phenols

1985
The purpose of this chapter is an inventory of the types of organic acids and phenols in ground water, rain water, interstitial water, river, and lake water. In addition, this chapter discusses the distribution, composition, and chemistry of organic acids and phenols.
openaire   +1 more source

Paper chromatography of serum phenolic acids

Clinica Chimica Acta, 1968
Abstract A simple method is described for the extraction, separation and detection of serum phenolic acids. The method has been applied to normal and abnormal sera. Phenolic acids could not be detected in serum from six normal subjects, but were found in variable amounts in serum obtained from patients suffering from a variety of clinical conditions.
openaire   +2 more sources