product: B) 3- pentanone = contains alpha hydrogen‚ aldol condensation product: C) Acetophenone = contains alpha hydrogen‚ aldol condensation product: D) Formaldehyde has no alpha hydrogen so aldol condensation is not possible. E) Benzophenone has no alpha hydrogen so aldol condensation is not possible. F) Cyclohexanone = contains alpha hydrogen‚ aldol condensation product: 4. Ketones are less reactive than aldehydes in aldol condensations because the carbonyl group on the ketone
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Danger: Chemical Sunscreens Sunscreen is meant to be a product designed to protect the skin from the sun. The first form of sunscreen was a red‚ petroleum jelly like substance that was mainly used to aid troops during WWII‚ it then transformed into a sort of pasty‚ white substance of zinc oxide. As the years passed and society began to evolve into one that craved sun kissed skin‚ many companies started to brainstorm in search of a new kind of sunscreen. The formula they aimed for was one that protected
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Safety of Sunscreen The sun’s rays have powered life on our planet since its creation‚ and have made life possible for all living things. The sun is one of the most important elements of the universe‚ but in recent years has only been condemned for some of its harmful effects on humans. Lately‚ all that is heard about the sun anymore is how can be harmful and how protection from overexposure is needed. Many people are scared of dangerous overexposure effects such as sunburn‚ premature aging of the
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The Grignard Synthesis of Triphenylmethanol Abstract: Grignard synthesis of triphenylmethanol was achieved by use of the Grignard reagent phenyl magesium brominde. The organometallic grignard reagent was synthesized by use of a reflux apparatus recrystallization techniques. Once synthesized it was used in a Grignard reaction that involved nucleophilic addition to a carbonyl in order to make triphenylmethanol. The final product was solidified and recrystallized and spectral data was
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Bonne Bell Liquid Lip Smacker - Strawberry The new lip gloss by Bonne Bell treats your lips with your favorite flavors in a clear‚ high-shine gloss! Smooth-on gloss moisturizes with Vitamin E and Aloe and leaves lips super shiny! The sensations felt with the strawberry lip smacker made by the Bonne Bell Company is a fun‚ yet fabulous feeling compared to no other. This lip gloss is a must have. It also adds a beautiful shine on your lips and it is very cheap! The prices may vary according to the
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Mechanism for coupling reactions In this experiment‚ a Grignard reagent was prepared and reacted with benzophenone to synthesize triphenylmethanol‚ a tertiary alcohol (Figure 4). The Grignard reagent was prepared with dry magnesium turnings‚ bromobenzene and anhydrous ether. To isolate the alcohol‚ dilute acid was used to convert the magnesium salt to free
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NPTEL – Chemistry – Reagents and Organic reactions Module II Lecture 14 Reduction Reactions 2.1.1 Lithium Aluminum Hydride (LAH) 2.1.1.1 Introduction Lithium aluminum hydride (LAH) is a strong reducing agent with chemical formula LiAlH4. It can reduce a variety of functional groups such as aldehydes‚ esters‚ acids‚ ketones‚ nitriles‚ epoxides and azides. It vigorously reacts with water and all the reactions are performed in polar aprotic solvents. 2.1.1.2 Preparation It was first
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protect against the radiation they were designed to do. This process of them becoming inactive happens a lot faster when they’re combined with other chemicals rather than when they’re by themselves. One specific chemical used in most sunscreens is benzophenone-3 (BP3). This chemical affects the entire body‚ including the liver and kidneys‚ as well as harming the normal reproductive development. This
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Biocatalysis and Biotransformation Redesigning existing enzymes by protein engineering Metabolic engineering for multistep biotransformation Cyanide Biotransformation Redesigning existing enzymes by protein engineering WHAT IS PROTEIN ENGINEERING??? It is a process of developing useful or valuable proteins which involves * Modification of existing enzymes * Production of new enzymes In other words‚ the design and construction of new proteins or enzymes with novel or desired functions
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Functional Group Analysis: Carbonyl Compounds‚ Oxidizable Carbonyl Compounds and Acidic Compounds Christian Paul L. Ramos Institute of Chemistry‚ University of the Philippines‚ Diliman‚ Quezon City 1101 Philippines Date Performed: August 24‚ 2012; Date Submitted: September 19‚ 2012 Results and Discussion Aldehydes and ketones both contain the carbonyl group – a group in which a carbon atom has a double bond to oxygen. The carbonyl group in aldehydes is bonded to at least one
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