PPT-Aldehydes

p 42 Organic compounds that have a carbonyl group CO attached to the beginning 1 st Carbon or end last Carbon of a parent carbon chain General form O O . 2814 C O OC OC Q.1 Carbonyl compounds are formed by oxidation of alcohols; a) Which type of alcohol is oxidised to an aldehyde?b) Which type of alcohol is oxidised to a ketone?c) What compounds are Aldehydes. The term Aldehyde come for the words . al. cohol . dehy. drogenation. . Preparation: Oxidation of primary alcohols according to the following equation:. Note: Oxidation can be considered as removal of hydrogens. Dr. Talat R. Al-Ramadhany. Introduction . Aldehydes are compounds of the general formula . RCHO. ;. Ketones are compounds of the general formula . RR´CO. . The groups R and R´ may be aliphatic or aromatic. . 18-4. Alkylation of enolates can be difficult to control.. The alkylation of an aldehyde or ketone enolate is an example of a nucleophilic substitution reaction.. The alkylation of aldehydes and ketones is complicated by several unwanted side reactions.. In General. Fragrant odors. Basic building block of housing materials. Hormones. Digestion. Vision. 2. In General. Carbonyl group. C=O. Aldehydes. RCH=O. Formyl. Ketones. RC=OR’. 3. Nomenclature. KIMIA MINYAK ATSIRI. ESSENTIAL OIL . COMPOSITION. Essential Oils are complex mixture of sometimes hundreds of chemicals compounds.. EXAMPLE ;. Cananga. . Odorata. (. Cananga. Oil) :. 37 % b-. caryophyllene. Chemistry of Cooking. Flavours in Food. Many of the flavours in foods are due to the presence of . volatile. molecules. . Many . flavour and aroma molecules belong to the family called . aldehydes. . 17-1. The aldehyde function takes precedence over the ketone group in nomenclature.. Simpler aldehydes often retain their common names. These are constructed by dropping the –. ic. or –. oic. . ketons. Formaldehyde.. Acetaldehyde.. Chloral hydrate.. Benzaldehyde. .. Aceton. .. Acetophenone. .. It . contains variety of chemical compound including benzoate, . ceosol. ,, . benzaldehyde. , y-. terpineol. Before you can learn about aldehydes and ketones, you must first know something about the nomenclature of carboxylic acids since many of the names of aldehydes and ketones are derived from the names of the corresponding carboxylic acids.. 1. Chapter 16. Aldehydes & Ketones:. Nucleophilic Addition. to the Carbonyl Group. Ch. 16 - . 2. About The Authors. . These PowerPoint Lecture Slides were created and prepared by Professor William Tam and his wife, Dr. Phillis Chang. . Lesson on the following:. The Carbonyl group. Nomenclature for . Aldehydes. and . Ketones. Properties of . Aldehydes. and . Ketones. . 1.5 . Aldehydes. . and . Ketones. Aldehydes and Ketones. Fourth Edition. Karen Timberlake. 14.1. Aldehydes and Ketones. Chapter 14. Aldehydes, Ketones, and Chiral Molecules. © 2013 Pearson Education, Inc.. Lectures. Aldehydes and Ketones. A . carbonyl group. Organic compounds. Functional group identification. Many organic compounds contain an atom or group of atoms that substitute for hydrogen or carbon in a basic hydrocarbon.. The atom or group of atoms is commonly referred to as functional group..