PP Aldehyde and ketone
... CARBONYL COMPOUNDS - NUCLEOPHILIC ADDITION Watch out for the possibility of optical isomerism in hydroxynitriles CN¯ attacks from above ...
... CARBONYL COMPOUNDS - NUCLEOPHILIC ADDITION Watch out for the possibility of optical isomerism in hydroxynitriles CN¯ attacks from above ...
Amino alcohols. XVII. Arylethanolamines
... of the carbonyl group. To 6.53 Gm. (0.025 mole) of w-benzylaminoacetophenone hydrochloride, dissolved in 100 cc. of absolute ethanol, was added 3.0 Gm. of catalyst. The reduction mixture was shaken at room temperature under 100 lb. pressure for three hours when one mole of hydrogen had been absorbed ...
... of the carbonyl group. To 6.53 Gm. (0.025 mole) of w-benzylaminoacetophenone hydrochloride, dissolved in 100 cc. of absolute ethanol, was added 3.0 Gm. of catalyst. The reduction mixture was shaken at room temperature under 100 lb. pressure for three hours when one mole of hydrogen had been absorbed ...
Welcome to Class 7
... keto groups and hydroxyl groups. In aqueous solutions, most monosaccharides occur as cyclic structures. They result from hemiacetal or hemiketal formation between aldehyde or keto groups and hydroxyl groups on the same molecule. The reaction is freely reversible. ...
... keto groups and hydroxyl groups. In aqueous solutions, most monosaccharides occur as cyclic structures. They result from hemiacetal or hemiketal formation between aldehyde or keto groups and hydroxyl groups on the same molecule. The reaction is freely reversible. ...
Chapter 1--Title
... Allyl phenyl ethers undergo a rearrangement upon heating that yields an allyl phenol The process is intramolecular; the allyl group migrates to the aromatic ring as the ether functional group becomes a ketone ...
... Allyl phenyl ethers undergo a rearrangement upon heating that yields an allyl phenol The process is intramolecular; the allyl group migrates to the aromatic ring as the ether functional group becomes a ketone ...
Chapter 7 Notes - Alcohols, Ethers, Thiols Functional groups alcohol
... CH3OH + NaNH2 ---> NH3 + CH3O- Na+ (sodium methoxide) most commonly made by direct reaction with active metals CH3OH + Na ---> 1/2 H2 + CH3O- Na+ (CH3)3COH + K ---> 1/2 H2 + (CH3)3CO-K+ ...
... CH3OH + NaNH2 ---> NH3 + CH3O- Na+ (sodium methoxide) most commonly made by direct reaction with active metals CH3OH + Na ---> 1/2 H2 + CH3O- Na+ (CH3)3COH + K ---> 1/2 H2 + (CH3)3CO-K+ ...
Problems - Department of Chemistry HKU
... where p0 is the initial pressure and p is the final pressure of cyclopropane. What is the order and rate constant for the reaction under these conditions? 21.10 The addition of hydrogen halides to alkenes has played a fundamental role in the investigation of organic reaction mechanisms. In one study ...
... where p0 is the initial pressure and p is the final pressure of cyclopropane. What is the order and rate constant for the reaction under these conditions? 21.10 The addition of hydrogen halides to alkenes has played a fundamental role in the investigation of organic reaction mechanisms. In one study ...
CARBONYL COMPOUNDS - NUCLEOPHILIC ADDITION
... CARBONYL COMPOUNDS - NUCLEOPHILIC ADDITION Watch out for the possibility of optical isomerism in hydroxynitriles CN¯ attacks from above ...
... CARBONYL COMPOUNDS - NUCLEOPHILIC ADDITION Watch out for the possibility of optical isomerism in hydroxynitriles CN¯ attacks from above ...
J. Indian. Chem. Soc. 1999, 76, 631-639
... J. Indian. Chem. Soc. 1999, 76, 631-639. N-protected amino acid allylic esters can easily be deprotonated by LDA at -78 °C and transmetallated by addition of metal salts. Chelated metal enolates, which undergo Claisen rearrangements upon warming up to room temperature, giving rise to unsaturated ami ...
... J. Indian. Chem. Soc. 1999, 76, 631-639. N-protected amino acid allylic esters can easily be deprotonated by LDA at -78 °C and transmetallated by addition of metal salts. Chelated metal enolates, which undergo Claisen rearrangements upon warming up to room temperature, giving rise to unsaturated ami ...
Chapter 23 - Transition Metals and Coordination Chemistry
... Complexes Commonly, transition metals can have molecules or ions that bond to them. These give rise to complex ions or coordination compounds. ...
... Complexes Commonly, transition metals can have molecules or ions that bond to them. These give rise to complex ions or coordination compounds. ...
Carbon Compounds
... One bond, one dash. However, two carbon atoms can form a single bond, a double bond, or a triple bond. A carbon atom can also form a single or double bond with an oxygen atom. Structural formulas represent a double with a double dash and triple bond is indicated with a triple dash. Bonds b ...
... One bond, one dash. However, two carbon atoms can form a single bond, a double bond, or a triple bond. A carbon atom can also form a single or double bond with an oxygen atom. Structural formulas represent a double with a double dash and triple bond is indicated with a triple dash. Bonds b ...
carbon and molecular diversity
... - Usually completes its outer energy shell by ____________ valence electrons in four covalent bonds. (Not likely to form __________ bonds.) Emergent properties, such as the kinds and number of bonds carbon will form, are determined by their tetravalent electron configuration. - It makes large, compl ...
... - Usually completes its outer energy shell by ____________ valence electrons in four covalent bonds. (Not likely to form __________ bonds.) Emergent properties, such as the kinds and number of bonds carbon will form, are determined by their tetravalent electron configuration. - It makes large, compl ...
Interpreting NMR spectra
... Ethers: a distinctive feature in the 1H-NMR spectra of ethers is the chemical shift, δ 3.3-4.5, of hydrogens on carbon attached to the ether oxygen. This also appears in esters. ...
... Ethers: a distinctive feature in the 1H-NMR spectra of ethers is the chemical shift, δ 3.3-4.5, of hydrogens on carbon attached to the ether oxygen. This also appears in esters. ...
Alcohols and ethers
... The skeletal formula shows the functional group but leaves out the carbon atom and other hydrogen atoms. ...
... The skeletal formula shows the functional group but leaves out the carbon atom and other hydrogen atoms. ...
Chapter 4
... 1. Explain how carbon’s electron configuration explains its ability to form large, complex, diverse organic molecules 2. Describe how carbon skeletons may vary and explain how this variation contributes to the diversity and complexity of organic molecules 3. Distinguish among the three types of isom ...
... 1. Explain how carbon’s electron configuration explains its ability to form large, complex, diverse organic molecules 2. Describe how carbon skeletons may vary and explain how this variation contributes to the diversity and complexity of organic molecules 3. Distinguish among the three types of isom ...
KUT 203/2 - Chemistry Practical III (Inorganic Chemistry)
... of the metal complex i.e. K3[Al(ox)3].3H2O. • Determine the composition of metal complexes in both acid and basic mediums. • Understand the common technique on synthesis and the chemical properties of two coordination compounds i.e. [Co(NH3)4CO3]NO3 and [Co(NH3)5Cl]Cl2. • Substantiate the difference ...
... of the metal complex i.e. K3[Al(ox)3].3H2O. • Determine the composition of metal complexes in both acid and basic mediums. • Understand the common technique on synthesis and the chemical properties of two coordination compounds i.e. [Co(NH3)4CO3]NO3 and [Co(NH3)5Cl]Cl2. • Substantiate the difference ...
Document
... 1. 7,6 grams mixture of formic acid and acetic acid was neutralized by 35 ml of 20% potassium hydroxide solution (density=1,20g/ml). Calculate mass percentage of acetic acid in the mixture. 2. Find molecular formula of an alkene, if 1120 ml of hydrogen chloride at STP can be reacted with 2,8 grams o ...
... 1. 7,6 grams mixture of formic acid and acetic acid was neutralized by 35 ml of 20% potassium hydroxide solution (density=1,20g/ml). Calculate mass percentage of acetic acid in the mixture. 2. Find molecular formula of an alkene, if 1120 ml of hydrogen chloride at STP can be reacted with 2,8 grams o ...
directed reading a
... _____ 19. Complex carbohydrates are made of hundreds or thousands of a. lipids. c. proteins. b. sugar molecules. d. nucleic acids. _____ 20. Lipids are biochemicals that do not a. store excess energy. c. dissolve in water. b. make up cell membranes. d. store vitamins. _____ 21. Proteins are biochemi ...
... _____ 19. Complex carbohydrates are made of hundreds or thousands of a. lipids. c. proteins. b. sugar molecules. d. nucleic acids. _____ 20. Lipids are biochemicals that do not a. store excess energy. c. dissolve in water. b. make up cell membranes. d. store vitamins. _____ 21. Proteins are biochemi ...
Numina PowerPoint Presentation
... Which one of the following statements about a chemical reaction at equilibrium is correct? a) The concentrations of reactants and products are equal. ...
... Which one of the following statements about a chemical reaction at equilibrium is correct? a) The concentrations of reactants and products are equal. ...
Dissertation:
... narrow polydispersity indexes. The oxidation of styrene and cyclohexene, catalyzed by oxovanadium(IV) and (V) complexes was carried out using tert-butylhydroperoxide as the external oxidant. Styrene oxide and cyclohexene oxide were obtained with high conversion and selectivity. ...
... narrow polydispersity indexes. The oxidation of styrene and cyclohexene, catalyzed by oxovanadium(IV) and (V) complexes was carried out using tert-butylhydroperoxide as the external oxidant. Styrene oxide and cyclohexene oxide were obtained with high conversion and selectivity. ...
functional groups - Beal Science Dept.
... phosphorus bound to four oxygen atoms (three with single bonds and one with a double bond). • A phosphate group connects to the carbon backbone via one of its oxygen atoms. • Phosphate groups are anions with two negative charges as two protons have dissociated from the oxygen atoms. • One function o ...
... phosphorus bound to four oxygen atoms (three with single bonds and one with a double bond). • A phosphate group connects to the carbon backbone via one of its oxygen atoms. • Phosphate groups are anions with two negative charges as two protons have dissociated from the oxygen atoms. • One function o ...
Acidic and Basic Character of Carboxylic Acids
... The inductive effect of electron-withdrawing groups close to the carboxy group causes an increase in acidity. Three electron-withdrawing groups on the -carbon sometimes results in acidity near that of some inorganic acids. ...
... The inductive effect of electron-withdrawing groups close to the carboxy group causes an increase in acidity. Three electron-withdrawing groups on the -carbon sometimes results in acidity near that of some inorganic acids. ...
Hydroformylation
Hydroformylation, also known as oxo synthesis or oxo process, is an important homogeneously catalyzed industrial process for the production of aldehydes from alkenes. This chemical reaction entails the addition of a formyl group (CHO) and a hydrogen atom to a carbon-carbon double bond. This process has undergone continuous growth since its invention in 1938: Production capacity reached 6.6×106 tons in 1995. It is important because the resulting aldehydes are easily converted into many secondary products. For example, the resulting aldehydes are hydrogenated to alcohols that are converted to plasticizers or detergents. Hydroformylation is also used in specialty chemicals, relevant to the organic synthesis of fragrances and natural products. The development of hydroformylation, which originated within the German coal-based industry, is considered one of the premier achievements of 20th-century industrial chemistry.The process typically entails treatment of an alkene with high pressures (between 10 to 100 atmospheres) of carbon monoxide and hydrogen at temperatures between 40 and 200 °C. Transition metal catalysts are required.