Cu‐Catalyzed Phenol O‐Methylation with Methylboronic Acid

Aerobic Copper-Catalyzed O-Methylation with Methylboronic Acid.

The oxidative coupling of alkylboronic acids with oxygen nucleophiles offers a strategy for replacing toxic, electrophilic alkylating reagents. Although the Chan-Lam reaction has been widely applied in the arylation of heteroatom nucleophiles, O-alkylation with boronic acids is rare. We report a Cu-catalyzed nondecarboxylative methylation of carboxylic acids with methylboronic acid that proceed...

study of dna interaction with ethylenediaminetetraacetic acid and sesamol food additives

برهمکنش dnaتیموس گاوی طبیعی (ct-dna) با اتیلن دی آمین تترااستات (edta)در بافرtris-hcl با 8/7 ph ( دراین ph،edta به نمک دی سدیم تبدیل می شود) وسسامول در بافر tris-hcl با4/7 ph مورد بررسی قرار گرفته است. edta و سسامول استفاده فراوانی در تکنولوژی غذایی و صنعت شیمیایی دارند. مدل اتصال dna مربوط بهedta بوسیله اسپکتروفتومتری جذب، دورنگ نمایی حلقوی(cd)، ویسکومتری وژل الکتروفورز بررسی شده است. طیفuv ...

Oxidation of phenol and benzoic acid by some soil bacteria.

Two Step Conversion of Ferulic Acid to Vinyl Phenol

Cereal brans are good source of ferulic acid. An approximate global production of 150 million tons of cereal brans have been reported in 2004. These by-products are extensively used as animal feed, but active research is being carried out in this field to produce higher value added products from these. Many literature review assesses the various biotransformations of ferulic acid and the role o...

DETERMINATION OF PHENOL IN URINE WITH 2:6-DICHLOROQUINONECHLOROIMIDE. (b) THE EXCRETION OF PHENOL, GLUCURONIC ACID AND ETHEREAL SULPHATE BY RABBITS RECEIVING BENZENE AND PHENOL. (c) OBSERVATIONS ON THE DETERMINATION OF CATECHOL, QUINOL AND MUCONIC ACID IN URINE

The fate of benzene in the body has been the subject of numerous investigations since 1867 when Schultzen & Naunyn (1867) discovered that benzene was converted to phenol in the animal body. Phenol, catechol, quinol and their conjugates (Munk, 1876; Schmiedeberg, 1881; Nencki & Giacosa, 1880; Baernstein, 1945), muconic acid (Jaffe, 1909; Thierfelder & Klenk, 1924; Drummond & Finar, 1938; Bernhar...