Introduction Methyl Salicylate has been used for a long time for its pleasant odour and flavour. The objective of this experiment was to carry an organic synthesis; the preparation of salicylic acid from methyl salicylate. To do an organic synthesis‚ it is needed to chemically modify the molecules of another compound to end up with the desire compound. Methyl salicylate is the major constituent of wintergreen oil‚ which is why it was used in this experiment as the starting material. The new technique
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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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algorithm is proposed for removing large objects from digital images. The challenge is to fill in the hole that is left behind in a visually plausible way. In the past‚ this problem has been addressed by two classes of algorithms: (i) “texture synthesis” algorithms for generating large image regions from sample textures‚ and (ii) “inpainting” techniques for filling in small image gaps. The former work well for “textures” – repeating twodimensional patterns with some stochasticity; the latter focus
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reaction conditions. © 1998 ElsevierScienceLtd. All rights reserved. The choice of solid support and linker are important factors for success in solid phase synthesis. ~ Unlike solution phase synthesis‚ where an optimisation study will result in reproducible reactions‚ time consuming validation steps usually required in solid phase synthesis may only be specific for a particular solid support s Here‚ we present a comparative study of reaction rates‚ yields‚ and purity to assess the effect of the
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I. INTRODUCTION Synthesis Acetylsalicylic acid is an acetyl derivative of salicylic acid which appears as a white and crystalline and a weakly acidic substance with a melting point of 135°C and is also known to be aspirin. It is one of the most widely used drugs that can lower fever and is used as a painkiller. According to (Escobel‚ 2011)‚ Aspirin is synthesized through the reaction of salicylic acid with acetyl anhydride that causes a chemical reaction that turns salicylic acid’s hydroxyl group
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II. Synthesis This activity helps me to understand myself better by knowing what people think of me. It aims to foster self-awareness and self-improvement. I found out that my family thinks that I am a responsible person in terms of sense of responsibility. But my brother thinks I’m immature. In terms of duties at home‚ my mother and father understand that I don’t perform my duties because I’m busy with my studies. My sister thinks it too but she justified that I perform when I’m not busy. When
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the Twenty-first Century” took a different approach by targeting not everyone but only few saying‚ “…not merely the heights to which some will climb or the difficulties others will endure.” When combining these two statements you can see how they synthesis; In other words‚ the lower class of America will either suffer from being under skilled or replaced by technology‚ while the successful class of America will become known as “The Untouchables”‚ meaning they will be so specialized that they will not
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Synthesis The idea of gender wage discrimination being widely practiced in the United States today is a difficult concept for many to swallow. With the Equal Pay Act of 1963 and Title VII of the Civil Rights Act of 1964‚ the realization of the existence of the gender wage gap surprises many Americans. These authors bring to the forefront the idea that there is more to the gender wage gap then just companies discriminating against women and minorities. They sight many sources with defined data
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Synthesis of benzilic acid from benzoin utilizing a multi-step reaction. Names: Arian Karim TA Name: Sayantan Das Lab Day & Time: Thursday 7:30-11:40 Lab Section #: Abstract The main purpose of this experiment was to synthesize benzilic acid from benzoin. This requires a multistep synthesis with benzyl as an intermediate product. The first step required HNO3 as an oxidizing agent and the second step required KOH and HCl. The percentage yields of benzil and benzilic acid were 59.5%
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● Introduction ● Initial problem ● How to Compare Recordings ● Dependence of system’s accuracy ● Algorithm instruction ● Source Code ● Software Requirements ● Hardware Requirements ● References Introduction The project “Attendance through Voice Recognition” is a tool that can help an organization or academic institute to have attendance of their employee or students and also the faculty members.It also record the time and date at which the member is present
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