achiral ketene via the acid chloride by adding thionyl chloride followed by triethylamine. Then‚ ketene was reacted with a chiral and nonracemic (S)-ethyl lactate produces a mixture of diasteromeric esters of ibuprofen derivatives where (S) configuration is predominantly. Finally‚ hydrolysis of the ester then provides (S)-ibuprofen in a relatively high yield. all reaction were monitored by TLC at room temperature with appropriate solvent system which states in experiment section. IR‚ 1H-NMR‚ 13C-NMR
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Rosie Gorrie Essay- writers consistently use short stories as a lens through which they scrutinise society. Katherine Mansfield uses short stories as lens‚ to show how during the 1920’s; in a society purely focused on keeping the old traditions alive and leaving new ways of thinking and change in the dark. Mansfield uses her short stories to uncover the harsh reality of gender biased marriages in which power and control were held by the male and how status and reputation allowed people to act a
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commercial light stick there is a mixture of hydrogen peroxide solution and a solution containing a phenyl oxalate ester and a fluorescent dye. Here’s the sequence of events when the two solutions are combined: 1. The hydrogen peroxide oxidizes the phenyl oxalate ester‚ resulting in a chemical called phenol and an unstable peroxyacid ester. 2. The unstable peroxyacid ester decomposes‚ resulting in additional phenol and a cyclic peroxy compound. 3. The cyclic peroxy compound decomposes
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EXPERIMENT NO. 5 LIPIDS Sheena Grace Abainza (12-8116) Agatha Abella (12-8046) Danielle Quigao (12-8051) Jessa Mae Ramos (12-8049) February 15‚ 2013 CHEM42 (Biochemistry) Laboratory ABSTRACT This experiment was performed to enlighten the researcher about the different properties and characteristics of lipids including its solubility and its complexity with regards to its components. The test for solubility tagged along the aphorism “like dissolves
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Killer. The dress was originally for the Queen‚ yet Isabel‚ without permission of the Queen decided to try it on and have a secret affair with Sir Dudley. After Sir Dudley had left Isabel to be tortured by the poison in the dress‚ Queen Elizabeth went out searching for her maid. Then that was when she had seen the Jesuit killer coming for her. He had been hunting for her‚ and if it weren’t for the incident of the poisoned dress‚ that had killed Isabel‚ Elizabeth would not have known that someone was
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purified product identified the Arene strand of 2969.71 indicating C-H stretch. Ester which indicated a C=O stretch of a 1750-1735. Aliphatic amines showed an absorption band of 1217.62 indicating a C-N stretch. (This makes no sense‚ look at the molecule you have and relate the points. Furthermore‚ you need to compare your results to a literature source) An example of a practical application would be using the ester to produce flavors in products. It could be used in a laboratory where they are trying
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System Analysis And Design Gym Management System Members: Bon Raven Lucero Kendrick Willson Matusalem Challs Merick Otchengco CHAPTER I INTRODUCTION Gym Management System allows the user to store the medicine details‚ employee details‚ the details of person who is in the gym‚ gym equipment details etc. This software package allows storing the details of all the data related to gymnasium. The system is strong enough to withstand regressive yearly operations under conditions
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Shawnacee E.Gali-Lucero PTP ‘Giving Back’ Essay Give what I’ve Got Growing up in Hawaii has been ideally strengthened and defined by those who supported me. Those who show care for me include my parents‚ my teachers‚ and my friends. Specifically my mother who makes me realize how essential it is to not let anyone or anything get in the way of fully grasping the benefits and enjoyment of free education. My teacher‚ Ms. Kelly who gives her full effort to give her best self as a teacher and an
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shaped by his/her religion. In the movie Fools Rush In‚ the clashing of religion is seen as a major theme. Isabel Fuentes is a character who comes from a strict Mexican-American‚ Catholic family and is impregnated out of wedlock by a Protestant‚ city business man. When they decide to get married‚ they realize just how hard it will be to combine their religions. When the character Isabel found out she was pregnant‚ her biggest fear was telling her parents. She knew they would be disappointed in
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red and a white precipitate with silver nitrate(aq) (drop on end of glass rod)‚ if the mixture is poured into water you may detect a ’pleasant’ ester odour‚ can test for HCl but water and amines produce it too!(ii) as for (1) but no ester smell!(iii) You should get a ’pleasant’ characteristic smell of an ester. | (i) R-OH + CH3COCl ==> CH3COOR + HClAn ester and hydrogen chloride are formed(ii) R-OH + PCl5 ==> R-Cl + POCl3 + HCla chloro compound and hydrogen chloride are formed.(i) and (ii) Ag+(aq) + Cl-(aq) ==> AgCl(s) from
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