PPT-Alcohols, Phenols and

Thiols and ethers Nomencalture of alcohols Use the end ol Examples Hydrogen bonding in alcohols and phenols Alcohols and phenols form hydrogen bonds and hence they have relatively high boiling points This also makes the lower alcohols miscible with water As the R group becomes larger the solubility of alcohols in water decreases dramatically. Thiols. , Phenols, . And Ethers. IUG, . Fall . 2013. Dr. . Tarek. . Zaida. 1. 1. Alcohols. Alcohols are derivatives of hydrocarbons in which 1 or more of the hydrogen atoms has been replaced by a hydroxyl (-OH) . and how to identify them. 2. Classification. Primary. : carbon with –OH is bonded to one other carbon. Secondary. : carbon with –OH is bonded to two other carbons. Tertiary. : carbon with –OH is bonded to three other carbons. Mass spectrometer. n-hexane. MS. Alcohols, ethers, thiols. Sweet. Hydrogen . bonding. Hydrophilic. Hydrophobic. Oxidation. 12.1 Alcohols: Structure and Physical Properties. An organic compound containing a hydroxyl group attached to an alkyl group. Alcohol . – alkyl chain attached to an –OH. . R-OH. Phenol . - aromatic attached to an –OH. Nomenclature. 1. Name the longest chain of carbons which includes the carbon with the hydroxyl group.. PHENOLS. Alcohols and Phenols. Alcohols contain an OH group connected to a . a. saturated C (sp. 3. ). They are important solvents and synthesis intermediates. Phenols contain an OH group connected to a carbon in a benzene ring. 45. -Alcohols . have the general formula R. -. OH and are characterized by the presence of a . hydroxyl group, . -. OH. . -Phenols . have a hydroxyl group attached directly to an aromatic ring. . -Thiols . 1. Hydration of Alkenes - . addition of water. - uses H. 2. SO. 4. and heat. Ex.; Hydrate propene.. 2. Hydrogenation of Aldehydes & Ketones –. All . carbon-carbon double bonds in the molecule will be hydrogenated at the same time. Objective:. To know what phenol is. Success criteria:. Recognise phenol compounds. Recall . the reaction of phenol with bromine water. Compare the reactions of phenols to that of bromine. Explain the difference in reactivity between phenols and benzene. Chapter . 13. Alcohols, Phenols, . Thiols. , and Ethers. Anesthesia is typically administered by a nurse anesthetist who provides care before, during, and after a medical procedure. A nurse anesthetist gives medications to keep a patient asleep and pain-free while monitoring the patient’s vital signs. , Ethers, Aldehydes, and Ketones. Anesthesia is typically administered by a nurse anesthetist who provides care before, during, and after a medical procedure. A nurse anesthetist gives medications to keep a patient asleep and pain-free while monitoring the patient’s vital signs.. Phenols are organic compounds with a hydroxyl group attached directly to an aromatic ring. They have the general formula . Ar. -OH. Examples of them include phenol, hydroquinone, resorcinol,. o. -cresol, . Alcohols contain an OH group connected to a . a. saturated C (sp. 3. ). They are important solvents and synthesis intermediates. Phenols contain an OH group connected to a carbon in a benzene ring. Methanol, CH. J. Princess . Gracia. , M.. Sc. .,M.Phil.,. Assistant Professor,. Department of . Chemistry,. Bon Secours College for Women, . Thanjavur. .. Introduction-. . Phenols also called as phenolics are a class of chemical compounds consisting of a hydroxyl group (-OH) bonded directly to an aromatic hydrocarbon group.. Most of the alcohols are known to be . colourless. liquids or even are said to behave as solid at room temperatures. Alcohols with less molecular weight are said to be highly soluble in water; and with their increase in molecular weight, they tend to become less soluble and their .