Synthesis and Structure of Alcohols Alcohols can be considered organic analogues of water. H O H R O H Alcohols are usually classified as primary‚ secondary and tertiary. H R H OH H primary R R OH R R OH OH R secondary tertiary phenol Alcohols with the hydroxyl bound directly to an aromatic (benzene) ring are called phenols. Nomenclature of Alcohols (Normally any compound’s name which ends in –ol is an alcohol of some sort) IUPAC rules that:
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and Lewis base. Orbital hybridization: sp3‚ sp2‚ sp. Conjugated double bonds and resonance 2. Classification of organic compounds Nomenclature: homologues series‚ alkanes‚ cycloalkanes‚ alkene‚ alkynes‚ alkyl halides‚ alcohols‚ amines‚ aldehydes‚ ketones and carboxylic 4 acids and their derivatives. 3. Stereochemistry Conformations of alkanes and cycloalkanes. Isomerism and optical activity. Structural isomers and stereoisomers. Geometrical isomers: (E) and (Z) systems. Enantiomers and diastereoisomers;
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Aldol Condensation Wei-Hsuan Tsui 4/16/14 The reaction of an aldehyde with a ketone employing sodium hydroxide as the base is an example of a mixed aldol condensation reaction‚ the Claisen-Schmidt reaction. Dibenzalacetone is readily prepared by condensation of acetone with two equivalents of benzaldehyde -26 -95 113.9 1. Weigh 0.212 g of pure benzaldehyde directly into a 10 x 100 mm reaction tube. 2.
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your body can cause dizziness‚ nausea‚ headaches and fatigue. Bad Breath Low-carb diets lead to incomplete burning of fats to produce energy in your body‚ and in the process‚ ketones are produced‚ says Anssi H Manninen‚ an exercise physiologist specializing in sports nutrition and ergogenic aids. Excess ketones in your body come out through your urine and saliva. This causes bad breath among people on low-carb diets. Though you cannot do much to stop bad breath‚ drinking water and chewing sugar-free
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Title: Benedict ’s test for Reducing Sugars Testable Question: Are all carbohydrates reducing sugars? Hypothesis: If the carbohydrate contains available ketone or aldehyde molecules then they are reducing sugars. Variables: a. Independent: Function groups react w/ reagent b. Dependent: Color change (red‚ orange‚ yellow) Control: Water Materials: - 4 mL of each solution (Water‚ Starch‚ Glucose‚ Maltose‚ Sucrose‚ Onion Juice‚ Potato slice‚ Milk) - 8 test tubes
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Chapter 17: Alcohols and Phenols C O O H H sp3 alcohol pKa~ 16-18 phenol (aromatic alcohol) pKa~ 10 Alcohols contain an OH group connected to a saturated carbon (sp3) Phenols contain an OH group connected to a carbon of a benzene ring O H C C H C C O chemistry dominated by the keto form 76 enol keto H O H R O H R O R R O O R’ water alcohol R S H ether R S R peroxide R S S R’ thiols thioether disulfides
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Genomes as Resources for Biocatalysis JON D. STEWART Department of Chemistry‚ University of Florida Gainesville‚ Florida 32611 I. II. III. IV. Introduction Yeast Dehydrogenase Gene Identification Expression and Isolation of Yeast Dehydrogenases Characterization of Yeast Dehydrogenases A. Results from Ethyl Acetoacetates B. Results from Higher Homologs C. Synthetic Applications V. Conclusions and Future Directions References 31 33 34 35 37 40 43 46 49 I. Introduction How well biocatalysis
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amino acids rather than glucose. In times of dietary oversupply‚ the nitrogen of amino acids is eliminated via transamination‚ deamination‚ and urea formation and the carbon skeletons are generally used to feed into carbohydrate metabolism. These ketone bodies have a great propensity to decrease urinary pH. Acid base balance in the body is therefore disrupted. Glomerular filtration rate will be increased and a decrease in renal tubular reabsorption of calcium resulting in calcium
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Lab 5 Oxidation of an alcohol CHM2123 Introduction: Oxidation is a key reaction in organic chemistry. Oxidation of an alcohol can produce aldehydes‚ ketones‚ or carboxylic acids. One of the methods of oxidation is an aldol reaction through carbon-carbon bonds. The oxidation oxidizes primary alcohols to aldehydes and secondary alcohols oxidizes ketones. Tertiary alcohols are converted to the common oxidizing agents. Scheme 5.1: Aldehydes can be oxidized easily to carboxylic acids in aqueous medias
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DIABETIC KETOACIDOSIS INTRODUCTION Diabetic ketoacidosis (DKA) is a very serious complication of diabetes mellitus‚ a metabolic disorder that is characterized by hyperglycemia‚ metabolic acidosis‚ and increased body ketone concentrations. The most common causes of DKA are infection and poor compliance with medication regimens. Other causes include undiagnosed diabetes‚ alcohol abuse‚ and a multitude of medical conditions such as cerebrovascular accident (CVA)‚ complicated pregnancy‚ myocardial
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