ClickHere - KV HVF , AVADI Chennai
... dichromate from iron chromite ore. An organic compound A having molecular formula C6H6O gives a violet colour with neutral FeCl3 solution. A on treatment with CO2 and NaOH at 400 K under pressure gives B which on acidification gives a compound C. The compound C reacts with acetyl chloride to give D ...
... dichromate from iron chromite ore. An organic compound A having molecular formula C6H6O gives a violet colour with neutral FeCl3 solution. A on treatment with CO2 and NaOH at 400 K under pressure gives B which on acidification gives a compound C. The compound C reacts with acetyl chloride to give D ...
LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034
... Write the Woodward Hoffmann rules for cycloaddition reactions. What is group transfer reaction? Give an example. Give the (1,5)-sigmatropic rearrangement reactions. What is photoisomerisation? Draw Jablonskii diagram and mention the photophysical processes. Mention the importance of retrosynthetic a ...
... Write the Woodward Hoffmann rules for cycloaddition reactions. What is group transfer reaction? Give an example. Give the (1,5)-sigmatropic rearrangement reactions. What is photoisomerisation? Draw Jablonskii diagram and mention the photophysical processes. Mention the importance of retrosynthetic a ...
benzylic alcohols
... Preiodate has proved a valuable degradative agent in carbohydrate chemistry, for it reacts nearly quantitatively. Since the grouping --CH (OH)-–CH 2OH—is oxidized is oxidized to formaldehyde and the grouping –CH (OH)-–CH (OH)--CH(OH)- give one mole of formic acid, the estimation of formaldehyde with ...
... Preiodate has proved a valuable degradative agent in carbohydrate chemistry, for it reacts nearly quantitatively. Since the grouping --CH (OH)-–CH 2OH—is oxidized is oxidized to formaldehyde and the grouping –CH (OH)-–CH (OH)--CH(OH)- give one mole of formic acid, the estimation of formaldehyde with ...
Elimination Reactions
... Explain how additions of water to an alkene and elimination of an alcohol are opposite mechanisms Describe how to shift equilibrium in favor of elimination or addition Predict the major product according to alkene stability Daily Problems 1. Provide a mechanism for these elimination reactions ...
... Explain how additions of water to an alkene and elimination of an alcohol are opposite mechanisms Describe how to shift equilibrium in favor of elimination or addition Predict the major product according to alkene stability Daily Problems 1. Provide a mechanism for these elimination reactions ...
radicals
... In the Case of a (non-radical) Decarboxylation ,Recall that: Decarboxylation produce CO2, and are thus thermodynamically favorable. These reactions proceed most readily when the COOH moiety is attached to an electronegative atom, like oxygen or nitrogen. ...
... In the Case of a (non-radical) Decarboxylation ,Recall that: Decarboxylation produce CO2, and are thus thermodynamically favorable. These reactions proceed most readily when the COOH moiety is attached to an electronegative atom, like oxygen or nitrogen. ...
Chemguide – answers ALCOHOLS: THE TRIIODOMETHANE
... 1. a) Either: Add iodine solution followed by enough sodium hydroxide solution to remove the colour of the iodine. Warm very gently if nothing happens in the cold. Or: Add potassium iodide solution followed by sodium chlorate(I) solution (sodium hypochlorite solution). Warm very gently if nothing ha ...
... 1. a) Either: Add iodine solution followed by enough sodium hydroxide solution to remove the colour of the iodine. Warm very gently if nothing happens in the cold. Or: Add potassium iodide solution followed by sodium chlorate(I) solution (sodium hypochlorite solution). Warm very gently if nothing ha ...
Calculating Percent Yield
... Organic reactions typically do not give 100% yields, meaning all of the starting material does not get converted to the product. The percent of starting material that is converted to product in a chemical reaction is referred to as the percent yield. The percent yield can be calculated if the follow ...
... Organic reactions typically do not give 100% yields, meaning all of the starting material does not get converted to the product. The percent of starting material that is converted to product in a chemical reaction is referred to as the percent yield. The percent yield can be calculated if the follow ...
Glossary of Key Terms in Chapter Two
... addition reaction (11.5) a reaction in which two molecules add together to form a new molecule; often involves the addition of one molecule to a double or triple bond in an unsaturated molecule. alkene (11.1) a hydrocarbon that contains one or more carbon-carbon double bonds; an unsaturated hydrocar ...
... addition reaction (11.5) a reaction in which two molecules add together to form a new molecule; often involves the addition of one molecule to a double or triple bond in an unsaturated molecule. alkene (11.1) a hydrocarbon that contains one or more carbon-carbon double bonds; an unsaturated hydrocar ...
... 10. Arrange the following in terms of increasing acid strength and give reasons. Propionic acid , 2chloropropionic acid , 2 fluoropropionic acid. PART - B Answer any EIGHT questions (8 x 5 = 40) 11. Give a mechanism for the reaction of tert.butyl bromide with aqueous NaOH to form tert.butyl alcohol. ...
Chapter 8_part 1
... The Rate Determining step Step 1 is the rate determined step Formation of carbocation ...
... The Rate Determining step Step 1 is the rate determined step Formation of carbocation ...
... hydrobenzofurans 2 from homobenzylic alcohols 1 via an intramolecular palladium-catalyzed C–H activation/C–O cyclization sequence. Both EDGs and EWGs are tolerated at various positions around the ring. Yields are excellent (>75%) in almost all cases, except for R3 = CO2Et (50%) and R3 = H (42%). The ...
Solution Key - Chemistry With BT
... Is the stereoisomer obtained in the reaction above optically active? Explain. No, it is not possible to obtain a chiral product from an achiral reactant unless chiral reaction conditions are utilized, such as enzyme catalysis ...
... Is the stereoisomer obtained in the reaction above optically active? Explain. No, it is not possible to obtain a chiral product from an achiral reactant unless chiral reaction conditions are utilized, such as enzyme catalysis ...
1. Rank the following compounds in order of decreasing acidity (1
... 1. Rank the following compounds in order of decreasing acidity (1 = most acidic à 5 = least acidic): O ...
... 1. Rank the following compounds in order of decreasing acidity (1 = most acidic à 5 = least acidic): O ...
C h e m g u i d e ... CARBOXYLIC ACIDS: PREPARATION
... c) Write a simple equation (using [O] for the oxidising agent) for the oxidation of propan-1-ol to propanoic acid. d) The electron-half-equation for the dichromate(VI) ion acting as an oxidising agent in the presence of an acid is 2Cr3+ + 7H2O Cr2O72- + 14H+ + 6e(i) Work out the electron-half-equati ...
... c) Write a simple equation (using [O] for the oxidising agent) for the oxidation of propan-1-ol to propanoic acid. d) The electron-half-equation for the dichromate(VI) ion acting as an oxidising agent in the presence of an acid is 2Cr3+ + 7H2O Cr2O72- + 14H+ + 6e(i) Work out the electron-half-equati ...
Exam - Chemistry With BT
... More than one step may be required. Show all reagents and intermediate products. ...
... More than one step may be required. Show all reagents and intermediate products. ...
IGCSE Chemistry Definitions – LEARN THESE! Melting
... Diffusion - The random movement of particles from an area of a high concentration to an area of low concentration Filtration - Separating an insoluble solid from a liquid Filtrate - is fluid that has passed through a filter. Solute - the material that dissolves in a solvent to form a solution. Solut ...
... Diffusion - The random movement of particles from an area of a high concentration to an area of low concentration Filtration - Separating an insoluble solid from a liquid Filtrate - is fluid that has passed through a filter. Solute - the material that dissolves in a solvent to form a solution. Solut ...
09 Stoichiometry WS Stoichiometry WS
... container with excess P4O10. Water is absorbed by the following reaction: P4O10 + 6H2O 4H3PO4 a. What mass of water can be absorbed by 100. g of P4O10? b. If the P4O10 in the container absorbs 0.614 mol of water, what mass of H3PO4 is produced? c. If the mass of the container of P4O10 increases from ...
... container with excess P4O10. Water is absorbed by the following reaction: P4O10 + 6H2O 4H3PO4 a. What mass of water can be absorbed by 100. g of P4O10? b. If the P4O10 in the container absorbs 0.614 mol of water, what mass of H3PO4 is produced? c. If the mass of the container of P4O10 increases from ...
8. Chemistry of cooking
... What colour change would be observed when propanal is heated with Fehling’s (or Benedicts) solution? ...
... What colour change would be observed when propanal is heated with Fehling’s (or Benedicts) solution? ...
Alcohol Worksheet Key
... expect 4-chlorophenol to be more or less acidic than 3-chlorophenol? Explain. Why is the positioning of the chloro group important (whether it is at position 2, 3, or 4)? O ...
... expect 4-chlorophenol to be more or less acidic than 3-chlorophenol? Explain. Why is the positioning of the chloro group important (whether it is at position 2, 3, or 4)? O ...
- professional publication
... Reaction. Mechanism and Stereochemistry of S N2 reaction, Mechanism and Stereochemistry of SN1 Reaction. Rearrangement of Carbocation, S N2 versus SN1 Reactions, Reactivity of Alkyl Halides in SN1 and SN2, Factors Affecting SN1 and SN2. ...
... Reaction. Mechanism and Stereochemistry of S N2 reaction, Mechanism and Stereochemistry of SN1 Reaction. Rearrangement of Carbocation, S N2 versus SN1 Reactions, Reactivity of Alkyl Halides in SN1 and SN2, Factors Affecting SN1 and SN2. ...
Workshop 9
... mechanisms are well established. In other cases they may be speculative and are likely to change as more data become available. Mechanisms map the path by which the reactants change into products and the movement of electrons that accompanies this change. They also show how reactants come together, ...
... mechanisms are well established. In other cases they may be speculative and are likely to change as more data become available. Mechanisms map the path by which the reactants change into products and the movement of electrons that accompanies this change. They also show how reactants come together, ...
Q1. Give I.U.P.A..C Name of the following Organic Compound. 1 CH
... (1) An organic compound A with molecular formula C8 H8 O gives positive DNP and iodoform tests .It does not reduce Tollen’s or Fehling’s reagent and does not decolourise bromine water also. On oxidation with chromic acid (H2Cr04), it gives a carboxylic acid B With molecular formula C7H6O2 . Deduce t ...
... (1) An organic compound A with molecular formula C8 H8 O gives positive DNP and iodoform tests .It does not reduce Tollen’s or Fehling’s reagent and does not decolourise bromine water also. On oxidation with chromic acid (H2Cr04), it gives a carboxylic acid B With molecular formula C7H6O2 . Deduce t ...
Document
... A second compound, E, has the same molecular formula as D and has acidic properties. State the name of compound E. ...
... A second compound, E, has the same molecular formula as D and has acidic properties. State the name of compound E. ...
Hofmann–Löffler reaction
The Hofmann–Löffler reaction (also referred to as Hofmann–Löffler–Freytag reaction, Löffler–Freytag reaction, Löffler–Hofmann reaction, as well as Löffler's method) is an organic reaction in which a cyclic amine 2 (pyrrolidine or, in some cases, piperidine) is generated by thermal or photochemical decomposition of N-halogenated amine 1 in the presence of a strong acid (concentrated sulfuric acid or concentrated CF3CO2H). The Hofmann–Löffler–Freytag reaction proceeds via an intramolecular hydrogen atom transfer to a nitrogen-centered radical and is an example of a remote intramolecular free radical C–H functionalization.