Silica supported zinc chloride catalyzed acetylation of amines
... reaction conditions, easy separation of the catalyst from the reaction medium, greater selectivity and generally give higher yield of products and can be recycled for a number of times. The heterogeneous catalysts have been proven to offer similar levels of activity to their homogeneous counterparts ...
... reaction conditions, easy separation of the catalyst from the reaction medium, greater selectivity and generally give higher yield of products and can be recycled for a number of times. The heterogeneous catalysts have been proven to offer similar levels of activity to their homogeneous counterparts ...
Nugget
... carborane counterion. The optimization of the synthetic conditions for the ruthenium carborane complexes leads us in search of the new protonating agents. In addition to the ether and toluene based protonation agents ([H Ln]+ [carborane]-, where L is a solvent of choice ), we completed per-methylati ...
... carborane counterion. The optimization of the synthetic conditions for the ruthenium carborane complexes leads us in search of the new protonating agents. In addition to the ether and toluene based protonation agents ([H Ln]+ [carborane]-, where L is a solvent of choice ), we completed per-methylati ...
United States Patent
... in the IS-position. Osuka et al .• "Synthesis of Benzochlorin Monomer. Dimer, and Porphyrin-Benzochlorin Heterodimer from 5-Aryl- and 5J5-Diaryloctaethylporphyrins," Bull. Chem. Soc. lpn., 65.3322-30 (1992). Some of these derivatives have shown strong absorptions in the visible region around 700 run ...
... in the IS-position. Osuka et al .• "Synthesis of Benzochlorin Monomer. Dimer, and Porphyrin-Benzochlorin Heterodimer from 5-Aryl- and 5J5-Diaryloctaethylporphyrins," Bull. Chem. Soc. lpn., 65.3322-30 (1992). Some of these derivatives have shown strong absorptions in the visible region around 700 run ...
Chem 3.5 Questions 09
... Compound G is a structural isomer of A with the same functional group. Compare and contrast the reactions of G with the reagents in question (a) to that of compound A. Your answer should include: ...
... Compound G is a structural isomer of A with the same functional group. Compare and contrast the reactions of G with the reagents in question (a) to that of compound A. Your answer should include: ...
Organic Chemistry II Laboratory
... product. The two bromines which add to the double bond will be on opposite sides of the plane of the former pibond (in this case, the plane of the cyclopentane ring). Since the bromide ion could attack either one of the two carbons of the cyclic bromoniun ion intermediate, two different products are ...
... product. The two bromines which add to the double bond will be on opposite sides of the plane of the former pibond (in this case, the plane of the cyclopentane ring). Since the bromide ion could attack either one of the two carbons of the cyclic bromoniun ion intermediate, two different products are ...
Introduction to Chemical Reactions
... Matter is combined or broken apart to form a new type of matter Bonds are broken, atoms rearranged, and new bonds are reformed Chemical reaction is a change in which one or more substances are converted into new substances The substances that react are called reactants The new substances produced ar ...
... Matter is combined or broken apart to form a new type of matter Bonds are broken, atoms rearranged, and new bonds are reformed Chemical reaction is a change in which one or more substances are converted into new substances The substances that react are called reactants The new substances produced ar ...
Organic Chemistry Lecture Outline Chapter 20: Carboxylic Acids
... A. DEFINITION: A carboxylic acid contains a C=O whose C atom is bonded to an -OH group and another C atom. B. NOMENCLATURE: Nomenclature of carboxylic acids is divided into two groups: acyclic and cyclic carboxylic acids. 1. Acyclic carboxylic acids are named using the following rules. a. The parent ...
... A. DEFINITION: A carboxylic acid contains a C=O whose C atom is bonded to an -OH group and another C atom. B. NOMENCLATURE: Nomenclature of carboxylic acids is divided into two groups: acyclic and cyclic carboxylic acids. 1. Acyclic carboxylic acids are named using the following rules. a. The parent ...
Fundamentals of Organic Chemistry
... Upon completion of CHEM 2310, the student will be able to: 1. understand and explain the important role carbon compounds play in life systems; 2. explain the role of carbon compounds in our economy and in our dally life; 3. describe covalent bonding as it applies to organic compounds and then relate ...
... Upon completion of CHEM 2310, the student will be able to: 1. understand and explain the important role carbon compounds play in life systems; 2. explain the role of carbon compounds in our economy and in our dally life; 3. describe covalent bonding as it applies to organic compounds and then relate ...
Powerpoints - Holy Cross Collegiate
... • Every chemical reaction involves the rearrangement of atoms into different combinations. However, during these reactions, the total number of atoms of each type of element is the same after the reaction as it was before the reaction. • Chemical reactions have to be properly balanced in order to cl ...
... • Every chemical reaction involves the rearrangement of atoms into different combinations. However, during these reactions, the total number of atoms of each type of element is the same after the reaction as it was before the reaction. • Chemical reactions have to be properly balanced in order to cl ...
Hydrogenation of fatty acid methyl ester to fatty alcohol
... Natural fatty alcohols are important raw materials for surfactants and lubricants and can be produced by catalytic hydrogenation of fatty acid methyl esters (FAME). Commercial multiphase processes are necessarily operated at high pressures and high hydrogen-to-ester mole ration owing to low solubili ...
... Natural fatty alcohols are important raw materials for surfactants and lubricants and can be produced by catalytic hydrogenation of fatty acid methyl esters (FAME). Commercial multiphase processes are necessarily operated at high pressures and high hydrogen-to-ester mole ration owing to low solubili ...
Qn 1 - A Level Tuition
... 3,000 times stronger than acetic acid. Its conjugate base, known as oxalate (C2O42−), is a reducing agent as well as a chelating agent for metal cations. Oxalic acid dissociates in water according to the following equations HOOC-COO- + H3O+ I Ka1= 5.6 x 10-2 mol dm-3 ...
... 3,000 times stronger than acetic acid. Its conjugate base, known as oxalate (C2O42−), is a reducing agent as well as a chelating agent for metal cations. Oxalic acid dissociates in water according to the following equations HOOC-COO- + H3O+ I Ka1= 5.6 x 10-2 mol dm-3 ...
KHSO4-SiO2-MeOH – An efficient selective solid
... Ester hydrolysis is an important fundamental reaction for deprotection of alcohols generally carried out either by chemical or biochemical methods. Chemical methods involve hydrolytic1 or nonhydrolytic2 methods using homogeneous or heterogeneous reagents. Because of the advantages of recycling and e ...
... Ester hydrolysis is an important fundamental reaction for deprotection of alcohols generally carried out either by chemical or biochemical methods. Chemical methods involve hydrolytic1 or nonhydrolytic2 methods using homogeneous or heterogeneous reagents. Because of the advantages of recycling and e ...
CHAPTER 2 – POLYMERS
... molecules with 1 functional group can react with one other molecule to form a dimer to form a chain, molecules must be able to link at each end of the molecule e.g. carboxylic acids react with alcohols to form esters and with amines to form amides in condensation reactions when join end to end ...
... molecules with 1 functional group can react with one other molecule to form a dimer to form a chain, molecules must be able to link at each end of the molecule e.g. carboxylic acids react with alcohols to form esters and with amines to form amides in condensation reactions when join end to end ...
Chapter 12. Aldehydes, Ketones and Carboxylic Acids
... [Fehling solution is a mixture of Fehling solution A and Fehling solution B in 1: 1 ratio. Fehling solution A is aqueous copper sulphate and Fehling solution B is alkaline sodium potassium tartrate which is also called, Rochelle salt.] (c) Benedict solution With it, aldehydes (except benzaldehyde) a ...
... [Fehling solution is a mixture of Fehling solution A and Fehling solution B in 1: 1 ratio. Fehling solution A is aqueous copper sulphate and Fehling solution B is alkaline sodium potassium tartrate which is also called, Rochelle salt.] (c) Benedict solution With it, aldehydes (except benzaldehyde) a ...
10. Alkyl Halides - Clayton State University
... Alkyllithium (RLi) forms from RBr and Li metal RLi (primary, secondary or tertiary alkyl, aryl or vinyl R group) reacts with copper iodide to give lithium dialkylcopper (Gilman reagents) ...
... Alkyllithium (RLi) forms from RBr and Li metal RLi (primary, secondary or tertiary alkyl, aryl or vinyl R group) reacts with copper iodide to give lithium dialkylcopper (Gilman reagents) ...
Assistant Professor Chemistry, Class-2, Advt No. 84/2016
... Which of the following species does not have metal-metal bond (A) Fe2(CO)9 ...
... Which of the following species does not have metal-metal bond (A) Fe2(CO)9 ...
General Biology I (BIOLS 102)
... Tertiary level Final folded shape of protein resulting from hydrophobic interactions with water, globular (three dimensional) Hydrogen bonds, ionic bonnds and covalent bonds may also contribute to tertiary structure ...
... Tertiary level Final folded shape of protein resulting from hydrophobic interactions with water, globular (three dimensional) Hydrogen bonds, ionic bonnds and covalent bonds may also contribute to tertiary structure ...
Secondary alcohols
... Haloalkanes can be made from alcohols through inorganic esters. As an alternative to the acid-catalyzed conversions of alcohols into haloalkanes, a number of inorganic reagents can convert the alcoholic hydroxyl group into a good leaving group under milder conditions. Reaction of PBr3 with a second ...
... Haloalkanes can be made from alcohols through inorganic esters. As an alternative to the acid-catalyzed conversions of alcohols into haloalkanes, a number of inorganic reagents can convert the alcoholic hydroxyl group into a good leaving group under milder conditions. Reaction of PBr3 with a second ...
Carbonyl Compounds Prior Knowledge
... be able to apply IUPAC rules for nomenclature to alcohols, aldehydes, ketones and carboxylic acids limited to chains with up to 6 carbon atoms understand that alcohols can be classified as primary, secondary or tertiary understand that tertiary alcohols are not easily oxidised understand that primar ...
... be able to apply IUPAC rules for nomenclature to alcohols, aldehydes, ketones and carboxylic acids limited to chains with up to 6 carbon atoms understand that alcohols can be classified as primary, secondary or tertiary understand that tertiary alcohols are not easily oxidised understand that primar ...
Chapter 14 – Aldehydes and Ketones
... alcohols. This reaction is unusual in that the products of these reactions are normally unstable. We are interested in them because in one important biological case, the synthesis of carbohydrates, the products possess high stability. In this reaction an alcohol molecule adds across the carbonyl dou ...
... alcohols. This reaction is unusual in that the products of these reactions are normally unstable. We are interested in them because in one important biological case, the synthesis of carbohydrates, the products possess high stability. In this reaction an alcohol molecule adds across the carbonyl dou ...
When 1°, 2°, aromatic amines or aryl amines . (Rand
... enormous synthetic value. The important synthetic reactions of diazonium salts may be divided into two classes. (a) replacement reactions, in which nitrogen is lost as N2 and its place is taken by some other atom or group, and (b) coupling reactions, iri which the nitrogen is retained in the product ...
... enormous synthetic value. The important synthetic reactions of diazonium salts may be divided into two classes. (a) replacement reactions, in which nitrogen is lost as N2 and its place is taken by some other atom or group, and (b) coupling reactions, iri which the nitrogen is retained in the product ...
(a) Draw a primary, a secondary, and a tertiary alcohol for the
... Reaction with acidified dichromate is oxidation as the alcohol is oxidised to a carboxylic acid. The product is CH3CH2CH2COOH. The functional group in the product is carboxylic acid. Reaction with concentrated H2SO4 is an elimination reaction. A hydrogen atom and the -OH group on (adjacent) carbon a ...
... Reaction with acidified dichromate is oxidation as the alcohol is oxidised to a carboxylic acid. The product is CH3CH2CH2COOH. The functional group in the product is carboxylic acid. Reaction with concentrated H2SO4 is an elimination reaction. A hydrogen atom and the -OH group on (adjacent) carbon a ...
Petasis reaction
The Petasis reaction (alternatively called the Petasis borono–Mannich (PBM) reaction) is the chemical reaction of an amine, aldehyde, and vinyl- or aryl-boronic acid to form substituted amines.Reported in 1993 by Nicos Petasis as a practical method towards the synthesis of a geometrically pure antifungal agent, naftifine, the Petasis reaction can be described as a variation of the Mannich reaction. Rather than generating an enolate to form the substituted amine product, in the Petasis reaction, the vinyl group of the organoboronic acid serves as the nucleophile. In comparison to other methods of generating allyl amines, the Petasis reaction tolerates a multifunctional scaffold, with a variety of amines and organoboronic acids as potential starting materials. Additionally, the reaction does not require anhydrous or inert conditions. As a mild, selective synthesis, the Petasis reaction is useful in generating α-amino acids, and is utilized in combinatorial chemistry and drug discovery.