dibenzalacetone was created from an aldol condensation of 2 portions of benzaldehyde and acetone in sodium hydroxide. The reaction that occurred in this experiment is known as a specific aldol condensation called Claisen-Schmidt. In the reaction‚ the carbonyl of benzaldehyde reacts quickly with the acetone anion to create a hydroxyketone that dehydrates in the presence of a base to give the desired product. 10 mL of 4M sodium hydroxide was added to a 50 mL Erlenmeyer flask. To the sodium hydroxide solution
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Contents Series Preface Preface Acronyms‚ Abbreviations and Symbols About the Author 1 Introduction Electromagnetic Radiation Infrared Absorptions Normal Modes of Vibration Complicating Factors 1.4.1 Overtone and Combination Bands 1.4.2 Fermi Resonance 1.4.3 Coupling 1.4.4 Vibration–Rotation Bands References 2 Experimental Methods 2.1 Introduction 2.2 Dispersive Infrared Spectrometers 2.3 Fourier-Transform Infrared Spectrometers 2.3.1 Michelson Interferometers 2.3.2 Sources and Detectors 2.3.3
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form Diels-Alder with maleic anhydride.Trienes such as β-Myrcene (C10H16) may also form such adducts if at least two of their double bonds are conjugated. The IR‚ melting point‚ and NMR should be able to identify the two bands which arise from the carbonyl stretching modes and also identify the diene found in eucalyptus oil. Procedure: • Dissolve 5.00g of eucalyptus oil in 10ml of anhydrous diethyl ether • Add calculated amount of powered maleic anhydrous-2.81grams • Heat the
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BOARD OF INTERMEDIATE EDUCATION‚ KARACHI INTERMEDIATE EXAMINATION‚ 2013 (ANNUAL) Date: 18.05.2013 CHEMISTRY PAPER – II Max. Marks: 17 9:30 a.m. to 9:50 a.m. (Science Pre-Engineering & Pre-Medical Groups) Time: 20 minutes SECTION ‘A’ (MULTIPLE CHOICE QUESTIONS) – (M.C.Qs.) NOTE: i) This section consists of 17 part questions and all are to be answered. Each question carries one mark. ii) Do not copy down the part questions in your answerbook. Write only the answer in full against the proper
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usually requires long time at elevated temperatures and these reaction conditions are optimal to exploit microwave assisted synthesis. The target compounds are the three classes of Organo-iron complexes which are sandwich complexes‚ cyclopentadienyl carbonyl complexes and phosphine tricarbonyl complexes. Several compounds from these classes were studied and it was found that refluxing time was reduced to few minutes from several hours‚ improving yields of some poor yielding compounds. The article describes
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Name Lab Section GTA Station 1. Grignard Reaction Post-lab report Fill out the appropriate sections below. Show all work. Your calculated answers need to match the answers in the table. Also‚ attach the benzophenone and product spectra. Indicate appropriate stretches including differences in both spectra. Results | | Amounts and units | |Initial
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0 PANJAB UNIVERSITY CHANDIGARH- 160 014 (INDIA) (Estted. under the Panjab University Act VII of 1947-enacted by the Govt. of India) FACULTY OF SCIENCE SYLLABI FOR M.Sc. (TWO YEAR COURSE ) IN CHEMISTRY 1st & 2nd YEAR( Semester System) EXAMINATIONS 2013-2014 --:O:-- 1 OUTLINES OF TESTS‚ SYLLABI AND COURSES OF READING FOR M.Sc. FIRST YEAR (SEMESTER-I) EXAMINATION OF 2013 OBJECTIVE OF THE COURSE To teach the fundamental concepts of Chemistry and their applications. The syllabus pertaining
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in the essential oils of C. tamala leaves. In the antioxidant activity‚ anti-oxidant potentials of Cinnamomum oil and oleoresins for mustard oil have been evaluated by different methods such as peroxide‚ p-anisidine‚ thiobarbituric acid and total carbonyl value method. All samples with essential oil and oleoresins were able to control the oxidation rate of the mustard oil at 60’C than the control. It has also been reported that most natural antioxidative compounds often work synergistically with each
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PUSAT PENGAJIAN TEKNOLOGI INDUSTRI IMG 103/3 FOOD CHEMISTRY LAB REPORT Experiment 3 : Qualitative Test for Carbohydrate Date of Experiment: 27/03/2013 Date of Submission: 17/04/2013 Submitted by: Name: Te Hui Min Matric No.: 115615 Group: 4 Title Qualitative test for carbohydrate Introduction Carbohydrates are essential in foods as an energy source (starch is the main source of human calories)‚ a flavouring (simple sugars are usually sweet) and as a functional
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Chemistry Exam Study Sheet Organic Chemistry • Study of compounds to which carbon is the principal element. • Carbon is special because it has 4 bonds. Functional Groups • Organic substances are organized into organic families. • Organic Families – group of organic compounds with common structural features. o Each family has a recognizable physical property and a specific structural arrangement. o Each combination is referred to as a functional group. o Even
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