Experiment 3: Wittig Reaction Introduction This experiment performs a modified Wittig reaction using a phosphorus-containing Hornes-Emmons-Wittig reagent to generate an enolate anion of trimethyl phosphonoacetate instead of a phosphorus ylide. The methyl trans-4-methoxy cinnamate produced is then analyzed using melting point and 1H NMR spectroscopy. Theory The Wittig reaction prepares alkenes from carbonyl compounds by attacking a phosphorus ylide with a nucleophilic carbon atom stabilized by
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Reaction Paper August 30‚ 2014; Saturday; 1:00pm until 3:00pm. Our group went to ZAEC Hospital which is located at the San Jose Road. Where we did our requirement to do a manual processing to produce a radiographic film that is a visible image. Before we accomplished our task‚ we started to pick or choose who will be the one who we should expose or examine and who will be the operator in the Operating Console. And also planned who will be the one would do the next
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people know who Adam Braun is but he is helping a lot of people by building schools around the world. At one time‚ he was just a regular college student going to Brown University. Then‚ he almost died in a shipwreck and he decided that he wanted to do something good in the world. As a kid‚ he liked to spend time trading stocks and thought he would have a job in finance. But then in college‚ he spent a semester travelling to poor countries. Seeing the poor kids made a big impact on him. Adam Braun is a
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Discussion The reaction through which 4-mrthaoxyacetophenone is converted to 4-methoxybenzoic acid is a haloform reaction. This reaction involves two distinct stages that occur in the same environment. The first stage occurs through the based-catalyzed halogenation of the ketone that forms a trihalo ketone. First‚ the bleach is transformed into chlorine and hydroxide ions through the following reaction: Then‚ the hydroxyl is able to attack the rather acidic (pKa ~ 20) α-hydrogen of the ketone
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INSIDE JOB | TRAJANO‚ ALMIRA L. BSA803 | | Reaction Paper | This crisis‚ the United States and the world is facing is the effect of the lack of control and regulation on certain financial activities. Because of the continuing opposition of different individuals and companies with the imposition of regulations on these financial activities‚ it continued to be uncontrolled under the administration of different Presidents of the United States. Due to advances in technology‚ many
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Douglas Noel Adams Have you ever heard of the movie called The Hitchhiker’s Guide To The Galaxy is. Douglas Adams wrote the movie and book. He came up with the idea drunk laying in a field in Austria. That is how he came up the movie and book. The book and movie gave him the Golden Pan. Douglas Noel Adams who lived a sad life became an author and movie writer who won the Golden Pan. Now I am going to tell you about Douglas Adams birth and Childhood. Douglas Adams was born in Cambridge England on
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Epie B. Omosura Dr. Nelson Aldrich L. Esguerra MAEM Student Human Resources & Management Professor Why Do Talented Employees Leave Their Companies? (Reaction Paper) In the world of organizations‚ we can’t avoid turnovers. Employees come and go‚but losing employees who are talented and who are really a great asset of the company is a different story. Many companies seem to scramble with how they’re able to retain their top talent. But who should be blame for this delusional perspective
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Design of Compact Dual-Band Microstrip Patch Antenna for GPSK-PCS Operation Ho-yong Kim’‚ Yong-nn Lee‚ Chung-ho Won‚ Hong-min Lcc Department of Electronics EngineeringKyon@ Univerrily hi-Dong‚ Yeongtong-Cu‚ Suwon-Si‚ Kyonggi-do‚ Korea email: hyounrsn@hotmail.com lnlraduetion In recent years‚ with the advance o f technology‚ the demand for an antenna operating a1 mutibands i s increasing rapidly. Such as GPS and K-PCS‚ The multi-hand antennas with one feeding pon use the multiple resonance
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John Adams When John Adam died his last words were “Thomas Jefferson Survives.” John Adams was born on October 30‚ 1735 in Quincy‚ Massachusetts‚ and died July 4‚ 1826 in Quincy‚ Massachusetts. This biography is full of facts about John Adam’s life. In this paragraph there will be information about John Adam’s family and childhood. John Adam’s enjoyed hunting when he was a child. He also got a scholarship to Harvard University at age 16 and graduated at age 20. He studied the law in office
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John Adams ’ Influence on America JOHN ADAMS – A SHORT BIOGRAPHY HISTORY 1301 – U.S. HISTORY TO 1877 WHEN SEARCHING FOR THE MOST INFLUENTIAL PERSON DURING THE EARLY U.S. HISTORY‚ GEORGE WASHINGTON COMES TO THE FOREFRONT. INCIDENTLY‚ DUE TO THE GEOGRAPHICAL LOCATION OF THE RESEARCH‚ THERE WAS INSUFFICIENT INFORMATION ON PEOPLE OR EVENTS ON HISTORY BEFORE 1877. TO MY SURPRISE‚ INFORMATION WAS LOCATED ON JOHN AND ABIGAIL ADAMS. JOHN AND ABIGAIL ADAMS SUPPOSIVELY HAD A WONDERFUL LIFE AND MARRIAGE TOGETHER
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