Alkene complexes - Dewar/Chatt/Duncanson model
... molecules into transition metal-X bonds. In this case that of an alkene into a TM-H (hydride) bond. EXAMPLE trans-(Et3P)2PtHCl + C2H4 trans-(Et3P)2PtCl(C2H5) In this example the resulting ethyl complex is stable because the d 8 platinum Pt(2+) atom strongly prefers square-planar geometry. A relate ...
... molecules into transition metal-X bonds. In this case that of an alkene into a TM-H (hydride) bond. EXAMPLE trans-(Et3P)2PtHCl + C2H4 trans-(Et3P)2PtCl(C2H5) In this example the resulting ethyl complex is stable because the d 8 platinum Pt(2+) atom strongly prefers square-planar geometry. A relate ...
Organic Chemistry II Introduction
... • Known to be able to control stereochemistry of double bond ...
... • Known to be able to control stereochemistry of double bond ...
Methylcyclohexane + bromine and heat = 1-bromo-1
... 5. Provide synthetic sequences that show how to make each of the following. Please do not give any mechanisms. (34 points) A. trans-6-methyl-2-heptene. Re-read the name and draw the structure out first. As starting materials, you may use acetylene and any compound that has 4 carbons or less, plus an ...
... 5. Provide synthetic sequences that show how to make each of the following. Please do not give any mechanisms. (34 points) A. trans-6-methyl-2-heptene. Re-read the name and draw the structure out first. As starting materials, you may use acetylene and any compound that has 4 carbons or less, plus an ...
Alcohols and Phenols - faculty at Chemeketa
... They are important solvents and synthesis intermediates Phenols contain an OH group connected to a carbon in a benzene ring Methanol, CH3OH, called methyl alcohol, is a common solvent, a fuel additive, produced in large quantities Ethanol, CH3CH2OH, called ethyl alcohol, is a solvent, fuel, bevera ...
... They are important solvents and synthesis intermediates Phenols contain an OH group connected to a carbon in a benzene ring Methanol, CH3OH, called methyl alcohol, is a common solvent, a fuel additive, produced in large quantities Ethanol, CH3CH2OH, called ethyl alcohol, is a solvent, fuel, bevera ...
1. Chemical Energetics March
... There will be situations in which energy level diagrams are required at A2 e.g. when you meet the Born-Haber Cycle thermochemical cycle diagrams have no energy scale y-axis so can be written in any orientation (however writing the reaction you are investigating at the top of an inverted triangle is ...
... There will be situations in which energy level diagrams are required at A2 e.g. when you meet the Born-Haber Cycle thermochemical cycle diagrams have no energy scale y-axis so can be written in any orientation (however writing the reaction you are investigating at the top of an inverted triangle is ...
Organic #2
... Depending on reaction conditions, oxidation of butan-1-ol can give two different organic products. Name the functional group present in each of these products. Explain how you could distinguish between these two products. Name the reagents you would use and say what you would observe. What reagent w ...
... Depending on reaction conditions, oxidation of butan-1-ol can give two different organic products. Name the functional group present in each of these products. Explain how you could distinguish between these two products. Name the reagents you would use and say what you would observe. What reagent w ...
Rapid Ether and Alcohol CO Bond Hydrogenolysis Catalyzed by
... broad spectrum of biomass-related substrates. This approach is advantageous over previous protocols from this laboratory12,14 and others in many ways: (1) extended substrate scope including C−O bonds of alcohols and primary ethers; (2) high yields of alkanes without skeletal rearrangement; (3) comme ...
... broad spectrum of biomass-related substrates. This approach is advantageous over previous protocols from this laboratory12,14 and others in many ways: (1) extended substrate scope including C−O bonds of alcohols and primary ethers; (2) high yields of alkanes without skeletal rearrangement; (3) comme ...
Ruthenium And Silver Reagents
... Ruthenium Reagents Ruthenium Tetroxide - effective for the conversion of 1° alcohols to RCO2H and 2° alcohols to ketones - oxidizes multiple bonds and 1,2-diols. ...
... Ruthenium Reagents Ruthenium Tetroxide - effective for the conversion of 1° alcohols to RCO2H and 2° alcohols to ketones - oxidizes multiple bonds and 1,2-diols. ...
protecting groups
... For aldehydes and ketones, protetion usually involves the formation of an acetal or ketal, the five- and six-membered cyclic derivatives (1, 3-dioxolanes and 1,3-dioxanes, respectively) being particularly important. Deprotection involves acid hydrolysys. The formation of these cyclic acetals and ket ...
... For aldehydes and ketones, protetion usually involves the formation of an acetal or ketal, the five- and six-membered cyclic derivatives (1, 3-dioxolanes and 1,3-dioxanes, respectively) being particularly important. Deprotection involves acid hydrolysys. The formation of these cyclic acetals and ket ...
Chapter 4
... • This molecule has an OH (called a hydroxy group) attached to its backbone. • Compounds containing an OH group are called alcohols. • The hydroxy group makes the properties of ethanol very different from the properties of ethane. • Ethanol has lone pairs and polar bonds that make it reactive. ...
... • This molecule has an OH (called a hydroxy group) attached to its backbone. • Compounds containing an OH group are called alcohols. • The hydroxy group makes the properties of ethanol very different from the properties of ethane. • Ethanol has lone pairs and polar bonds that make it reactive. ...
Alcohols and Phenols
... • Can be more or less acidic than phenol itself • An electron-withdrawing substituent makes a phenol more acidic by delocalizing the negative charge • Phenols with an electron-donating substituent are less acidic because these substituents concentrate the charge ...
... • Can be more or less acidic than phenol itself • An electron-withdrawing substituent makes a phenol more acidic by delocalizing the negative charge • Phenols with an electron-donating substituent are less acidic because these substituents concentrate the charge ...
Aldehydes and Ketones
... be a site that is attacked by nucleophiles. And, since the oxygen bears a partial negative charge, it is likely to be a site of electrophilic attack. Since ordinary carbanions (R: −) and hydride ions (H: −) are very poor leaving groups (unlike ...
... be a site that is attacked by nucleophiles. And, since the oxygen bears a partial negative charge, it is likely to be a site of electrophilic attack. Since ordinary carbanions (R: −) and hydride ions (H: −) are very poor leaving groups (unlike ...
Alcohols
... Where “R” represents any chain of carbon and hydrogen atoms. • If there is more than one hydroxyl group, it is called a polyalcohol. They are named almost the same as regular alcohols except you add a “di”, “tri”, etc. before the “ol” ending. For example ...
... Where “R” represents any chain of carbon and hydrogen atoms. • If there is more than one hydroxyl group, it is called a polyalcohol. They are named almost the same as regular alcohols except you add a “di”, “tri”, etc. before the “ol” ending. For example ...
OxorheniumCatalyzed Deoxydehydration of Sugars and Sugar
... challenging polyol substrates. We focused our attention on the alcohol transfer hydrogenation system because of the significant advantage, that the oxidized alcohol (ketone or aldehyde) can be readily hydrogenated if reductant recycling is necessary. In addition, whereas only large secondary alcohol ...
... challenging polyol substrates. We focused our attention on the alcohol transfer hydrogenation system because of the significant advantage, that the oxidized alcohol (ketone or aldehyde) can be readily hydrogenated if reductant recycling is necessary. In addition, whereas only large secondary alcohol ...
Chapter 1 Chemical Bonding and Chemical Structure
... Chapter 16 The Chemistry of Benzene Derivatives ...
... Chapter 16 The Chemistry of Benzene Derivatives ...
m4 carbonyl
... 2,4-DINITROPHENYLHYDRAZINE C6H3(NO2)2NHNH2 The following structural isomers have similar boiling points because of similar van der Waals forces and dipole-dipole interactions. They would be impossible to identify with any precision using boiling point determination. ...
... 2,4-DINITROPHENYLHYDRAZINE C6H3(NO2)2NHNH2 The following structural isomers have similar boiling points because of similar van der Waals forces and dipole-dipole interactions. They would be impossible to identify with any precision using boiling point determination. ...
Facile Oxidation of Benzyl Alcohols with Sodium Nitrate/p
... present reaction conditions. Electron donating groups such as –CH and –OCH present in the aromatic rings facilitated the oxidations and the reactions are completed within 150 sec (entries 3-4). Even in cases of benzyl alcohols with powerful electron withdrawing groups (entries 5-7) in the aromatic r ...
... present reaction conditions. Electron donating groups such as –CH and –OCH present in the aromatic rings facilitated the oxidations and the reactions are completed within 150 sec (entries 3-4). Even in cases of benzyl alcohols with powerful electron withdrawing groups (entries 5-7) in the aromatic r ...
Alcohols and Phenols
... • Can be more or less acidic than phenol itself • An electron-withdrawing substituent makes a phenol more acidic by delocalizing the negative charge • Phenols with an electron-donating substituent are less acidic because these substituents concentrate the charge ...
... • Can be more or less acidic than phenol itself • An electron-withdrawing substituent makes a phenol more acidic by delocalizing the negative charge • Phenols with an electron-donating substituent are less acidic because these substituents concentrate the charge ...
Introduction_to_organic
... This was the most common definition of "organic" until Wohler's 1828 synthesis of urea (an organic compound) from ammonium cyanate (a salt, and therefore? Organic/inorganic). But we no longer use this definition, for the simple reason that many compounds that everyone agrees are organic -- including ...
... This was the most common definition of "organic" until Wohler's 1828 synthesis of urea (an organic compound) from ammonium cyanate (a salt, and therefore? Organic/inorganic). But we no longer use this definition, for the simple reason that many compounds that everyone agrees are organic -- including ...
Alkene
In organic chemistry, an alkene is an unsaturated hydrocarbon that contains at least one carbon–carbon double bond. Alkene, olefin, and olefine are used often interchangeably (see nomenclature section below). Acyclic alkenes, with only one double bond and no other functional groups, known as mono-enes, form a homologous series of hydrocarbons with the general formula CnH2n. Alkenes have two hydrogen atoms less than the corresponding alkane (with the same number of carbon atoms). The simplest alkene, ethylene (C2H4), which has the International Union of Pure and Applied Chemistry (IUPAC) name ethene is the organic compound produced on the largest scale industrially. Aromatic compounds are often drawn as cyclic alkenes, but their structure and properties are different and they are not considered to be alkenes.