Search results
Most of the phenol used today is produced from benzene, through either hydrolysis of chlorobenzene or oxidation of isopropylbenzene (cumene). Hydrolysis of chlorobenzene (the Dow process) Benzene is easily converted to chlorobenzene by a variety of methods, one of which is the Dow process.
25 lip 2021 · This book chapter begins with classification of phenolic compounds in concise manner followed by going through their chemical properties that are essential for their biological activities.
17 cze 2009 · Biosynthesis, according to this pathway, produces the large variety of plant phenols: cinnamic acids (C 6-C 3), benzoic acids (C 6-C 1), flavonoids (C 6-C 3-C 6), proanthocyanidins [(C 6-C 3-C 6) n], coumarins (C 6-C 3), stilbenes (C 6-C 2-C 6), lignans (C 6-C 3-C 3-C 6) and lignins [(C 6-C 3) n] . The main phenolic structures are shown in ...
Phenol is a component in liquid–liquid phenol–chloroform extraction technique used in molecular biology for obtaining nucleic acids from tissues or cell culture samples. Depending on the pH of the solution either DNA or RNA can be extracted.
Today, approximately 132 million tons of phenol is manufactured worldwide each year for use in such products as Bakelite resin and adhesives for binding plywood. Phenol was manufactured for many years by the Dow process, in which chlorobenzene reacts with NaOH at high temperature and pressure (Section 16.7).
Phenol is a component of the extraction procedure of liquid-liquid phenol-chloroform which is useful in molecular biology to derive nucleic acids from tissues or cell culture samples. Either DNA or RNA may remove, depending on the pH of the solution.
From 1904, 5 per cent solutions of phenol (usually in vegetable oil) have been used to seal off varicose veins and to shrink haemorrhoids. 1 When such solutions are injected into a nerve, the cells and surrounding cells are destroyed and thus the ability to transmit pain.
