Presentation - Chem Rxns - stpats-sch3u-sem1-2013
... Coefficient = a whole number indicating the ratio of molecules of each substance involved in a chemical reaction ...
... Coefficient = a whole number indicating the ratio of molecules of each substance involved in a chemical reaction ...
ppt
... shift range for the aldehyde proton is 9-10 ppm The aldehyde proton will couple to the protons on the -carbon with a typical coupling constant of J 2 Hz A carbonyl will slightly deshield the protons on the -carbon; typical chemical shift range is 2.0 - 2.5 ppm ...
... shift range for the aldehyde proton is 9-10 ppm The aldehyde proton will couple to the protons on the -carbon with a typical coupling constant of J 2 Hz A carbonyl will slightly deshield the protons on the -carbon; typical chemical shift range is 2.0 - 2.5 ppm ...
LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034 PART-A
... The diazotization of aniline in moderately concentrated acid has been found to be second order in HNO2. Explain. How will you determine the configuration of a) () mandelic acid with respect to (+) lactic acid? b) () lactic acid with respect to (+) tartaric acid? How will you correlate the configur ...
... The diazotization of aniline in moderately concentrated acid has been found to be second order in HNO2. Explain. How will you determine the configuration of a) () mandelic acid with respect to (+) lactic acid? b) () lactic acid with respect to (+) tartaric acid? How will you correlate the configur ...
Chem 263 Nov 3 2016 notes
... Many reactions of aldehydes and ketones start with nucleophilic attack at the carbon atom of the carbonyl group by a nucleophile (Nu:). The nucleophile always has a pair of electrons available but may or may not bear a negative charge. The electrons of the carbon-oxygen double bond then become loca ...
... Many reactions of aldehydes and ketones start with nucleophilic attack at the carbon atom of the carbonyl group by a nucleophile (Nu:). The nucleophile always has a pair of electrons available but may or may not bear a negative charge. The electrons of the carbon-oxygen double bond then become loca ...
NM Strand
... 1. The label on a popular brand of “one-a-day” vitamins says there are 15mg of zinc per tablet. How many grams of zinc are in one tablet? 2. If an atom loses an electron, it becomes a(n) 3. What elements exist as diatomic molecules? 4. What is 1,230 in scientific notation? 5. A salt solution has a c ...
... 1. The label on a popular brand of “one-a-day” vitamins says there are 15mg of zinc per tablet. How many grams of zinc are in one tablet? 2. If an atom loses an electron, it becomes a(n) 3. What elements exist as diatomic molecules? 4. What is 1,230 in scientific notation? 5. A salt solution has a c ...
Polymerisation IMPORTANT POINTS • Polymerisation is
... Monomers containing the C=C can add together to form polymers (addition) or two units can react together to eliminate a small molecule such as water (condensation). Polysaccharides such as starch can be broken down to simple sugars (monosaccharides) by enzymes (such as amylase) or during acid hydrol ...
... Monomers containing the C=C can add together to form polymers (addition) or two units can react together to eliminate a small molecule such as water (condensation). Polysaccharides such as starch can be broken down to simple sugars (monosaccharides) by enzymes (such as amylase) or during acid hydrol ...
CHEM 101 1st Major (Term 161)
... 3Ni(s) + 8HNO3(aq) → 3Ni(NO3)2(aq) + 4H2O(l) + 2NO(g). HNO3 is acting as a reducing agent. The oxidation state of Ni in Ni(NO3)2 is +2. Oxidation and reduction occur in this reaction. The oxidation state of Ni(s) is zero. Ni(s) is oxidized in the reaction. ...
... 3Ni(s) + 8HNO3(aq) → 3Ni(NO3)2(aq) + 4H2O(l) + 2NO(g). HNO3 is acting as a reducing agent. The oxidation state of Ni in Ni(NO3)2 is +2. Oxidation and reduction occur in this reaction. The oxidation state of Ni(s) is zero. Ni(s) is oxidized in the reaction. ...
Organo halides
... What Is an Alkylhlaide An organic compound containing at least one carbon-halogen bond (C-X) X (F, Cl, Br, I) replaces H Can contain many C-X bonds Properties and some uses Fire-resistant solvents Refrigerants Pharmaceuticals and precursors ...
... What Is an Alkylhlaide An organic compound containing at least one carbon-halogen bond (C-X) X (F, Cl, Br, I) replaces H Can contain many C-X bonds Properties and some uses Fire-resistant solvents Refrigerants Pharmaceuticals and precursors ...
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... C. Hydrogenation of oils converts some cis double bonds to trans double bonds. D. Animal fats have more saturated fats. ...
... C. Hydrogenation of oils converts some cis double bonds to trans double bonds. D. Animal fats have more saturated fats. ...
Reactions (The Basics)
... A combustion reaction is when oxygen combines with another compound or element producing energy. ...
... A combustion reaction is when oxygen combines with another compound or element producing energy. ...
Functional Groups and nomenclature Major concepts Stable
... made from chemically connecting many individual molecules (monomers) of hydroxybuteric acid into a long chain. What functional group(s) are in the monomer? In the polymer? Based on this information, what general class of polymers does PHB belong to? (Hint: popular clothing material of the 1970’s.) W ...
... made from chemically connecting many individual molecules (monomers) of hydroxybuteric acid into a long chain. What functional group(s) are in the monomer? In the polymer? Based on this information, what general class of polymers does PHB belong to? (Hint: popular clothing material of the 1970’s.) W ...
L-13
... Results and discussion We initially chose allylchlorodimethylsilane (1) as an allylic nucleophile in the reaction with benzhydrol (2a, Table 1). Although the uncatalyzed system resulted in no reaction (entry 1), the loading of a catalytic amount of InCl3 dramatically accelerated the reaction and led ...
... Results and discussion We initially chose allylchlorodimethylsilane (1) as an allylic nucleophile in the reaction with benzhydrol (2a, Table 1). Although the uncatalyzed system resulted in no reaction (entry 1), the loading of a catalytic amount of InCl3 dramatically accelerated the reaction and led ...
FUNCTIONAL GROUPS
... • Aromatic compounds derive their names from the fact that many of these compounds in the early days of discovery were grouped because they were oils with fragrant odors, hence the name aromatic. • The current definition of aromatic compounds includes only those with a benzene ring, which is a speci ...
... • Aromatic compounds derive their names from the fact that many of these compounds in the early days of discovery were grouped because they were oils with fragrant odors, hence the name aromatic. • The current definition of aromatic compounds includes only those with a benzene ring, which is a speci ...
groups (families) vs rows
... aspirin, dyes and disinfectants. One industrial method of preparing chlorobenzene is to react benzene, C6H6 , with chlorine, which is represented by the following equation: C6H6 (l) + Cl2 (g) → C6H5Cl (s) + HCl (g) When 36.8g of C6H6 react with an excess of Cl2, the actual yield of C6H5Cl is 38.8g W ...
... aspirin, dyes and disinfectants. One industrial method of preparing chlorobenzene is to react benzene, C6H6 , with chlorine, which is represented by the following equation: C6H6 (l) + Cl2 (g) → C6H5Cl (s) + HCl (g) When 36.8g of C6H6 react with an excess of Cl2, the actual yield of C6H5Cl is 38.8g W ...
Too Hot to Handle Lab
... (endothermic), and where heat is lost (exothermic). Background: A Chemical reaction in which energy is released is an exothermic reaction. The word exothermic comes from the root – “thermic”, which refers to heat, and the prefix – “exo” which means out of. Heat comes out of, or is released from, a r ...
... (endothermic), and where heat is lost (exothermic). Background: A Chemical reaction in which energy is released is an exothermic reaction. The word exothermic comes from the root – “thermic”, which refers to heat, and the prefix – “exo” which means out of. Heat comes out of, or is released from, a r ...
Carboxylic Acid Derivatives
... Notice that, under the acidic conditions of the Fischer esterification, that free amino groups become protonated to their conjugate acids, and thus do not function as nucleophiles in the coupling procedure. ...
... Notice that, under the acidic conditions of the Fischer esterification, that free amino groups become protonated to their conjugate acids, and thus do not function as nucleophiles in the coupling procedure. ...
Erythro and Threo
... • React the sugar with alcohol in acid. • Since the open chain sugar is in equilibrium with its - and -hemiacetal, both anomers of the acetal are formed. • Aglycone is the term used for the group bonded to the anomeric carbon. ...
... • React the sugar with alcohol in acid. • Since the open chain sugar is in equilibrium with its - and -hemiacetal, both anomers of the acetal are formed. • Aglycone is the term used for the group bonded to the anomeric carbon. ...
Slide 1 - MrCard.Org
... • Reactions classified by what happens to reactants and products • May add together, break apart, or exchange parts • Major types called combination, decomposition, or replacement • Can tell type by the chemical equation ...
... • Reactions classified by what happens to reactants and products • May add together, break apart, or exchange parts • Major types called combination, decomposition, or replacement • Can tell type by the chemical equation ...
Quiz #3 will be concerning Types of Organic Compounds and types
... 5. Ketone – any of a class of organic compounds containing the carbonyl group (C=O) whose carbon atom is joined to two other carbon atoms. 6. Ester – a compound with the general formula RCOOR’ (where R is a hydrocarbon group or a hydrogen and R’ is a hydrocarbon group.) It is formed from an alcohol ...
... 5. Ketone – any of a class of organic compounds containing the carbonyl group (C=O) whose carbon atom is joined to two other carbon atoms. 6. Ester – a compound with the general formula RCOOR’ (where R is a hydrocarbon group or a hydrogen and R’ is a hydrocarbon group.) It is formed from an alcohol ...
The Preparation of Fragrant Esters
... or different. As a specific example, suppose acetic acid, CH 3COOH, is heated with ethyl alcohol, CH3CH2OH, in the presence of a mineral acid catalyst. The esterification reaction will be ...
... or different. As a specific example, suppose acetic acid, CH 3COOH, is heated with ethyl alcohol, CH3CH2OH, in the presence of a mineral acid catalyst. The esterification reaction will be ...
Strychnine total synthesis
Strychnine total synthesis in chemistry describes the total synthesis of the complex biomolecule strychnine. The first reported method by the group of Robert Burns Woodward in 1954 is considered a classic in this research field. At the time it formed the natural conclusion to an elaborate process of molecular structure elucidation that started with the isolation of strychnine from the beans of Strychnos ignatii by Pierre Joseph Pelletier and Joseph Bienaimé Caventou in 1818. Major contributors to the entire effort were Sir Robert Robinson with over 250 publications and Hermann Leuchs with another 125 papers in a time span of 40 years. Robinson was awarded the Nobel Prize in Chemistry in 1947 for his work on alkaloids, strychnine included. The process of chemical identification was completed with publications in 1946 by Robinson and later confirmed by Woodward in 1947. X-ray structures establishing the absolute configuration became available between 1947 and 1951 with publications from J. M. Bijvoet and J.H. Robertson .Woodward published a very brief account on the strychnine synthesis in 1954 (just 3 pages) and a lengthy one (42 pages) in 1963.Many more methods exist and reported by the research groups of Magnus, Overman, Kuehne, Rawal, Bosch, Vollhardt, Mori, Shibasaki, Li, Fukuyama Vanderwal and MacMillan. Synthetic (+)-strychnine is also known. Racemic synthesises were published by Padwa in 2007 and in 2010 by Andrade and by Reissig.In his 1963 publication Woodward quoted Sir Robert Robinson who said for its molecular size it is the most complex substance known.