Aldol Condensation Formal Abstract: An aldol condensation reaction was performed on acetophenone using p-anisaldehyde and sodium hydroxide as a base. This produced trans-p-anisalacetophenone in the form of a fluffy yellow crystal. The reaction was performed in a test tube and sodium hydroxide was added drop by drop followed by recrystallization and vacuum filtration. In order to verify the presence of the ketone 2‚4-dinitrophenylhydrazone was synthesized and reacted with trans-p-anisalacetophenone
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Experiment 5B: Ketone Reduction Objective: Using sodium borohydride as a reducing agent‚ the ketone 4-tert-butylcyclohexane is reduced to its corresponding alcohol. It is purified through extraction techniques to give the cis and trans diasteromer products. Procedure: The procedure was followed as outlined in Mayo’s book for Experiment 5B with the following modifications: 1. Reagents and Equipment – The reaction will be on a scale of 2X what is described in the text. 2. Reagents and Equipment
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Dehydration In 1994‚ thousands of starving people died in the Africa nation of Rwanda. It wasn’t lack of food that killed most of these people‚ but cholera‚ a bacterial infected that cripples the ability of intestinal mucosal cells to reabsorb water. The severe diarrhea that develops can kill in days‚ sometimes even hours. Dehydration is deadly. Dehydration is a deficiency condition that occurs when output of water exceeds intake. It is a great problem for athletes‚ military personnel‚ and certain
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Experiment 11: Synthesis of Dibenzalacetone by the Aldol condensation Introduction: The Aldol condensation reaction‚ under basic conditions‚ involves the nucleophilic addition of an enolate ion to another carbonyl group. The resulting product‚ a beta-hydroxy ketone or aldehyde‚ is called an aldol because it contains both and aldehyde group and the hydroxy group of alcohol. Condensations‚ including aldol condensation‚ combine two or more molecules‚ typically with a loss of a smaller molecule (including
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Notes Aldehydes and Ketones The major similarity between an aldehyde and a ketone is the carbonyl group. A carbonyl group is a carbon atom doubly bonded to an oxygen atom. [pic] Both molecules have a carbonyl group‚ the difference the number of carbons bonded to the carbonyl carbon. An aldehyde will have none or one and a ketone will have two carbons. All aldehydes‚ except formaldehyde‚ will have a hydrogen atom on one side of the carbonyl carbon and at least on carbon on the other side
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Esmeralda Curiel Organic Chemistry November 11‚ 2014 Experiment 62 – The Aldehyde Enigma INTRODUCTION In the Cannizaro reaction an aldehyde is simultaneously reduced into its primary alcohol form and also oxidized into it ’s carboxylic acid form. The purpose of this experiment is to isolate‚ purify and identify compounds 1 and 2 which contain 4-chlorobenzaldehyde‚ methanol‚ and aqueous potassium hydroxide. Compounds 1 and 2 are purified by crystallization. . The purified product will be characterized
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Using chemistry for electronics and vice versa The microelectronics industry is continually striving to miniaturize conventional silicon-based electronic devices to provide higher performance technology that can be housed in smaller packaging. Progress resulting from this miniaturization is evident from the rapid advances in consumer electronics‚ such as cell phones and laptop computers‚ that have been observed in recent years. Now‚ silicon-based molecular electronics -- a complementary technology
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Dehydration is when your body has lost too many fluids. Water is one of the most important nutrients to our body; the human body is from 55 percent to about 78 percent of water. The average person loses water consistently by doing everyday activities and sweating‚ breathing and eliminating waste. Water removes toxins and waste products from the body and puts nutrients into the body. Dehydration affects many people for many different reasons. Water has a HUGE effect on people when it comes to dehydration
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its proper functioning. Our bodies require that we consume at least one liter of water each day. When we lack the necessary about of fluid‚ dehydration-which is when a person loses more bodily fluid than he or she takes in‚ occurs. Dehydration can occur quickly‚ gradually over a period of time. In this paper‚ I will discuss the various effects of dehydration on the human body. I will discuss the importance of water to our health‚ compare and contrast the various functions of electrolytes‚ potassium
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Preparation of Dibenzalacetone by the Aldol condensation David o Neill Date of experiment: 14/12/2011 Apparatus Steam bath‚ ice bath‚ Buchner funnel‚ beaker‚ conical flask‚ filter paper‚ TLC apparatus‚ Melting point apparatus Materials / chemicals Benzaldehyde‚ acetone‚ ethanolic sodium hydroxide‚ ethanol Introduction The synthesis of dibenzalacetone is formed from an Aldol condensation reaction. An Aldol condensation reaction is a very effective way of forming a carbon – carbon bond reaction‚ in
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