Organic Chemistry Fifth Edition
... also slows the rate of bimolecular nucleophilic substitution, but the effect is smaller. ...
... also slows the rate of bimolecular nucleophilic substitution, but the effect is smaller. ...
Dihalogeno(diphosphane)metal(II) complexes (metal Co, Ni, Pd) as
... squares on F 2 using the SHELXL-97 program suite.71 All nonhydrogen positions were found and refined with anisotropic temperature factors. The hydrogen atoms were placed at calculated positions, using appropriate riding models (HFIX 43 for aromatic CH, HFIX 33 for CH3, HFIX 23 for CH2, HFIX 153 for C ...
... squares on F 2 using the SHELXL-97 program suite.71 All nonhydrogen positions were found and refined with anisotropic temperature factors. The hydrogen atoms were placed at calculated positions, using appropriate riding models (HFIX 43 for aromatic CH, HFIX 33 for CH3, HFIX 23 for CH2, HFIX 153 for C ...
研 究 業 績 リ ス ト
... Y. Nishibayashi, M. Yoshikawa, Y. Inada, M. D. Milton, M. Hidai, S. Uemura Angew. Chem., Int. Ed., 42, 2681–2684 (2003). (60) Oxidative Kinetic Resolution of Racemic Alcohols Catalyzed by Chiral Ferrocenyloxazolinylphosphine–Ruthenium Complexes Y. Nishibayashi, A. Yamauchi, G. Onodera, S. Uemura J. ...
... Y. Nishibayashi, M. Yoshikawa, Y. Inada, M. D. Milton, M. Hidai, S. Uemura Angew. Chem., Int. Ed., 42, 2681–2684 (2003). (60) Oxidative Kinetic Resolution of Racemic Alcohols Catalyzed by Chiral Ferrocenyloxazolinylphosphine–Ruthenium Complexes Y. Nishibayashi, A. Yamauchi, G. Onodera, S. Uemura J. ...
Organic Chemistry
... in the electrophilic addition of HX to alkenes, so the product formed is the one with the halogen substituent upon the more highly substituted carbon. Also, rearrangement (hydride or methyl shift to form a more stable carbocation) might occur, typical of reactions that have a carbocation intermediat ...
... in the electrophilic addition of HX to alkenes, so the product formed is the one with the halogen substituent upon the more highly substituted carbon. Also, rearrangement (hydride or methyl shift to form a more stable carbocation) might occur, typical of reactions that have a carbocation intermediat ...
Chapter 12: EDTA Titrations
... (c) Tetradentate = 4 binding sites; Example is ATP (Figure 11-2) ...
... (c) Tetradentate = 4 binding sites; Example is ATP (Figure 11-2) ...
Free-Radical Chemistry of Sulfite
... Since this early work, there have been several papers on the oxygen induced reactions of biological molecules with sulfite. It has been found that oxygen is required for the complete sulfonation of protein S-H groups by sulfite (26). Sulfite was found to form sulfonates with 4thiouracil derivatives ...
... Since this early work, there have been several papers on the oxygen induced reactions of biological molecules with sulfite. It has been found that oxygen is required for the complete sulfonation of protein S-H groups by sulfite (26). Sulfite was found to form sulfonates with 4thiouracil derivatives ...
Syntheses and Structures of Molybdenum Imido Alkylidene Pyrrolide and Indolide Complexes
... binds tetrahydrofuran to form a THF adduct, Mo(NAr)(CHCMe2Ph)(indolide)2(THF) 8, as one might expect for a 14e species in which the metal is relatively electron poor. For 8 the alkylidene HR proton resonates at 12.67 ppm and displays a JCH )120 Hz consistent with a syn orientation of the alkylidene. ...
... binds tetrahydrofuran to form a THF adduct, Mo(NAr)(CHCMe2Ph)(indolide)2(THF) 8, as one might expect for a 14e species in which the metal is relatively electron poor. For 8 the alkylidene HR proton resonates at 12.67 ppm and displays a JCH )120 Hz consistent with a syn orientation of the alkylidene. ...
Chm 2
... d. 11.0 mol For the reaction represented by the equation Cl2 + 2KBr 2KCl + Br2, how many moles of potassium chloride are produced from 119 g of potassium bromide? a. 0.119 mol c. 0.581 mol b. 0.236 mol d. 1.00 mol For the reaction represented by the equation 3Fe + 4H2O Fe3O4 + 4H2, how many mole ...
... d. 11.0 mol For the reaction represented by the equation Cl2 + 2KBr 2KCl + Br2, how many moles of potassium chloride are produced from 119 g of potassium bromide? a. 0.119 mol c. 0.581 mol b. 0.236 mol d. 1.00 mol For the reaction represented by the equation 3Fe + 4H2O Fe3O4 + 4H2, how many mole ...
Spectroscopic Characterization of the Surface of Iron Oxide
... shown in Figure 2, spectrum B. The 1H NMR of Fe2O3 (Figure 2B) is different than that of pure oleic acid (Figure 2A). In particular, in Figure 2B there is a lack of vinyl and allyl proton resonances, which appear at 5.5 and 2.0 ppm in the spectrum of pure oleic acid. The absence of the allyl and vin ...
... shown in Figure 2, spectrum B. The 1H NMR of Fe2O3 (Figure 2B) is different than that of pure oleic acid (Figure 2A). In particular, in Figure 2B there is a lack of vinyl and allyl proton resonances, which appear at 5.5 and 2.0 ppm in the spectrum of pure oleic acid. The absence of the allyl and vin ...
![On the Electronic Structure of [1Fe] Fe−S Complexes from Anionic](http://s1.studyres.com/store/data/016662851_1-146ca92fb5881f9927dee1ea56bc2f4e-300x300.png)
中国科学技术大学有机合成讲义-2
... - Jones reagent is a standard solution of chromic acid in aqueous sulfuric acid, which generates a mixture of H2Cr2O7 and H2CrO4. Acetone is often beneficial as a solvent and serves to protect substrate from over oxidation. Isolated olefins usually do not react, but some olefin isomerization may occ ...
... - Jones reagent is a standard solution of chromic acid in aqueous sulfuric acid, which generates a mixture of H2Cr2O7 and H2CrO4. Acetone is often beneficial as a solvent and serves to protect substrate from over oxidation. Isolated olefins usually do not react, but some olefin isomerization may occ ...
The Free High School Science Texts
... textbooks you probably own or use. • We know people copy textbooks illegally but we would LOVE it if you copied our’s - go ahead copy to your hearts content, legally! • Publishers’ revenue is generated by controlling the market, we don’t want any money, go ahead, distribute our books far and wide - ...
... textbooks you probably own or use. • We know people copy textbooks illegally but we would LOVE it if you copied our’s - go ahead copy to your hearts content, legally! • Publishers’ revenue is generated by controlling the market, we don’t want any money, go ahead, distribute our books far and wide - ...
Chapter Twenty-four
... groups they contain. • A functional group is a group of atoms that is largely responsible for the chemical behavior of the parent molecule. • Most organic compounds are derived from a group of compounds known as hydrocarbons because they are made up of only hydrogen and carbon. • Carbon has the abil ...
... groups they contain. • A functional group is a group of atoms that is largely responsible for the chemical behavior of the parent molecule. • Most organic compounds are derived from a group of compounds known as hydrocarbons because they are made up of only hydrogen and carbon. • Carbon has the abil ...
Alcohols, Phenols and Ethers
... 80) All of the following can be classified as alkyl halides except A) styrene, the monomer used to make foam coffee cups. B) CFC's used as refrigerants. C) chloroform, an anesthetic. D) thyroxine, a thyroid hormone. E) methyl bromide, an insecticide. ...
... 80) All of the following can be classified as alkyl halides except A) styrene, the monomer used to make foam coffee cups. B) CFC's used as refrigerants. C) chloroform, an anesthetic. D) thyroxine, a thyroid hormone. E) methyl bromide, an insecticide. ...
Metal–ligand multiple bonds as frustrated Lewis - Beilstein
... alkynes, by polarizing the substrate to facilitate cycloaddition. [2 + 2] cycloadditions of Mδ+═Eδ− FLPs with alkenes/alkynes have been thoroughly explored in the context of olefin metathesis (where E = CR2) and related variants such as alkyne and enyne metathesis [36,37]. Related reactivity is prev ...
... alkynes, by polarizing the substrate to facilitate cycloaddition. [2 + 2] cycloadditions of Mδ+═Eδ− FLPs with alkenes/alkynes have been thoroughly explored in the context of olefin metathesis (where E = CR2) and related variants such as alkyne and enyne metathesis [36,37]. Related reactivity is prev ...
R - Evans - Harvard University
... To assay the inherent diastereoselection of the different bromination methods, we employed hydrocinnamyl carboximide l a (R = Bn) as the substrate. A variety of brominating agents and metal enolates were screened.’* The halogenation method that provided the highest diastereoselectivity was the react ...
... To assay the inherent diastereoselection of the different bromination methods, we employed hydrocinnamyl carboximide l a (R = Bn) as the substrate. A variety of brominating agents and metal enolates were screened.’* The halogenation method that provided the highest diastereoselectivity was the react ...
The Effects of Ozone on Compounds in Epicuticular Waxes in Plant
... Tavleen Kochar (B.S. Chemistry and Biology) The Effects of Ozone on Compounds in Epicuticular Waxes in Plant Leaves Thesis Directed by Dr. Teresa Longin We investigated the direct chemistry of ozone on selected compounds found in plant epicuticular waxes by comparing the standard to the ozonized pro ...
... Tavleen Kochar (B.S. Chemistry and Biology) The Effects of Ozone on Compounds in Epicuticular Waxes in Plant Leaves Thesis Directed by Dr. Teresa Longin We investigated the direct chemistry of ozone on selected compounds found in plant epicuticular waxes by comparing the standard to the ozonized pro ...
The solid state and solution structures of tin(IV)
... pH, solvent and water/Si molar ratio have been rationalized. Two types of kinetic growth processes are generally recognized (but not universally accepted): monomercluster growth and cluster-cluster growth [16,17]. Each of these processes may proceed under reaction-limited or diffusion-limited condit ...
... pH, solvent and water/Si molar ratio have been rationalized. Two types of kinetic growth processes are generally recognized (but not universally accepted): monomercluster growth and cluster-cluster growth [16,17]. Each of these processes may proceed under reaction-limited or diffusion-limited condit ...
Paper
... ceramics and that can be reprocessed into the end ceramic product. Practically all known advanced ceramic materials can be produced via ceramic precursors routes. Nevertheless, chemical compounds should satisfy a number of common and technological requirements to be ceramic precursors. Some of them ...
... ceramics and that can be reprocessed into the end ceramic product. Practically all known advanced ceramic materials can be produced via ceramic precursors routes. Nevertheless, chemical compounds should satisfy a number of common and technological requirements to be ceramic precursors. Some of them ...
Document
... Now let us apply this background to the study of the organic chemistry of metabolism We study two key metabolic pathways • -oxidation of fatty acids • glycolysis ...
... Now let us apply this background to the study of the organic chemistry of metabolism We study two key metabolic pathways • -oxidation of fatty acids • glycolysis ...
New Applications for Sulfur-Based Leaving Groups in Synthesis
... I, Vincent James Gray, confirm that the work presented in this thesis is my own. Where information is derived from other sources, I confirm that it has been indicated and acknowledged. ...
... I, Vincent James Gray, confirm that the work presented in this thesis is my own. Where information is derived from other sources, I confirm that it has been indicated and acknowledged. ...
Chemistry 110 Oxidation Reduction Reactions Oxidation Number
... We can see that the oxidation number of C increases from -4 to +4 in this reaction, so C is oxidized. We can also see that the oxidation number of O decreases from zero (0) to -2, so O is reduced. Notice that the oxidation number of hydrogen does not change. It is always the case that if any element ...
... We can see that the oxidation number of C increases from -4 to +4 in this reaction, so C is oxidized. We can also see that the oxidation number of O decreases from zero (0) to -2, so O is reduced. Notice that the oxidation number of hydrogen does not change. It is always the case that if any element ...
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.