
Chemical reactions
... reaction. They are written in the left term of the equation. Reaction products = substances formed in a chemical reaction. They are written in the right term of the equation Because in a chemical reaction, the nature of atoms of the substances is not changed, the chemical equations are equalized so ...
... reaction. They are written in the left term of the equation. Reaction products = substances formed in a chemical reaction. They are written in the right term of the equation Because in a chemical reaction, the nature of atoms of the substances is not changed, the chemical equations are equalized so ...
Document
... • An enantioselective reaction affords predominantly or exclusively one enantiomer. • A reaction that converts an achiral starting material into predominantly one enantiomer is called an asymmetric reaction. ...
... • An enantioselective reaction affords predominantly or exclusively one enantiomer. • A reaction that converts an achiral starting material into predominantly one enantiomer is called an asymmetric reaction. ...
5 · Chemical Reactions
... You will be given a periodic table and a solubility chart. No other resources are allowed. You have fifty (50) minutes to complete this test, unless other arrangements have been made. Please transfer your answers for questions in Sections 1 and 2 onto the Answer Document. Work for these questions wi ...
... You will be given a periodic table and a solubility chart. No other resources are allowed. You have fifty (50) minutes to complete this test, unless other arrangements have been made. Please transfer your answers for questions in Sections 1 and 2 onto the Answer Document. Work for these questions wi ...
IB Chemistry HL Assessment Statements 2009 Revised
... Deduce the structures of the polymers formed in the reactions of alcohols with ...
... Deduce the structures of the polymers formed in the reactions of alcohols with ...
Name - Clark College
... Please work and place your answers in the spaces provided. Show your work for maximum credit! The last page may be torn off and used for scratch paper. Do not write on the IR/NMR sheet. Bring all material up when you are finished. 1. Provide the reagents for the following 2-step transformation. [6] ...
... Please work and place your answers in the spaces provided. Show your work for maximum credit! The last page may be torn off and used for scratch paper. Do not write on the IR/NMR sheet. Bring all material up when you are finished. 1. Provide the reagents for the following 2-step transformation. [6] ...
Bulent Terem - CH324 - Syllabus | Chaminade
... This is the second part of a two-semester course in organic chemistry. It is assumed that by now the participants have a sound understanding of the basic concepts of organic reaction mechanisms. In the next sixteen weeks we will start with topics in physical organic chemistry and gradually move into ...
... This is the second part of a two-semester course in organic chemistry. It is assumed that by now the participants have a sound understanding of the basic concepts of organic reaction mechanisms. In the next sixteen weeks we will start with topics in physical organic chemistry and gradually move into ...
Poly(ethylene glycol)-supported a,a,a
... group. Finally, removal of the silyl ether group afforded phenol 1.25 Reaction of 1 with MPEG-OMs26 (MPEG = poly(ethylene glycol) monomethyl ether, average MW = 5000) in the presence of CsCO3 and Bu4NI afforded supported catalyst 2.27 The epoxidation of a variety of alkenes using catalyst 2 was examin ...
... group. Finally, removal of the silyl ether group afforded phenol 1.25 Reaction of 1 with MPEG-OMs26 (MPEG = poly(ethylene glycol) monomethyl ether, average MW = 5000) in the presence of CsCO3 and Bu4NI afforded supported catalyst 2.27 The epoxidation of a variety of alkenes using catalyst 2 was examin ...
Esters - Phillips Scientific Methods
... 18. To prepare for tomorrow’s lab, read p. 502 and answer the following: A. What compound in willow bark relieved pain? B. The hydrolysis of this compound yielded: C. What were the side effects of the above compound? D. Explain (give reactants and product) what chemists of the Bayer Corp. did to the ...
... 18. To prepare for tomorrow’s lab, read p. 502 and answer the following: A. What compound in willow bark relieved pain? B. The hydrolysis of this compound yielded: C. What were the side effects of the above compound? D. Explain (give reactants and product) what chemists of the Bayer Corp. did to the ...
Chapter 1
... *Notes-A ______Subscript_________ is a number written below and to the right of a chemical symbol. C6H12O6 The 6, 12, and 6 are all subscripts. *To find the number of atoms in a compound you should __add____ the subscripts. *Notes-If there is no subscript, only __1_____ atom of that element is prese ...
... *Notes-A ______Subscript_________ is a number written below and to the right of a chemical symbol. C6H12O6 The 6, 12, and 6 are all subscripts. *To find the number of atoms in a compound you should __add____ the subscripts. *Notes-If there is no subscript, only __1_____ atom of that element is prese ...
PowerPoint
... methane, with water as a byproduct. The water that is produced can then react with CO in the water-gas shift reaction, equation (2). In addition, both CO and methane can decompose to form carbon as in equations (3) and (4). ...
... methane, with water as a byproduct. The water that is produced can then react with CO in the water-gas shift reaction, equation (2). In addition, both CO and methane can decompose to form carbon as in equations (3) and (4). ...
CO 2(g) - cloudfront.net
... • Energy symbols used above the arrow for decomposition reactions. ∆ = heat. hv = light. shock = mechanical. elec = electrical. ...
... • Energy symbols used above the arrow for decomposition reactions. ∆ = heat. hv = light. shock = mechanical. elec = electrical. ...
ORGANOMETALLIC COMPOUNDS
... sodium sulphate. Process: chromium trichloride reacts with aluminium and benzene with aluminium chloride as catalyst. The buildet complex then reacts with sodium sulphate and forms Cr(C6H6)2. Electron Counting in organometallic compounds: 18‐electon rule (N.V. Sigwick Rule): by applying this rule ...
... sodium sulphate. Process: chromium trichloride reacts with aluminium and benzene with aluminium chloride as catalyst. The buildet complex then reacts with sodium sulphate and forms Cr(C6H6)2. Electron Counting in organometallic compounds: 18‐electon rule (N.V. Sigwick Rule): by applying this rule ...
review sheet plus practice problems
... What are the products of free radical halogenation of an alkane (ex: Cl2/uv light)? Give the chain mechanism for free radical halogenation. What is the selectivity for brominations vs. fluorinations? Why are allylic radicals more stable than other types? Draw resonance for all allylic radicals. What ...
... What are the products of free radical halogenation of an alkane (ex: Cl2/uv light)? Give the chain mechanism for free radical halogenation. What is the selectivity for brominations vs. fluorinations? Why are allylic radicals more stable than other types? Draw resonance for all allylic radicals. What ...
Final Exam, Chem 111 2012 Study Guide (labs)
... RATES OF REACTIONS/A CLOCK REACTION 1. Understand how the Clock Reaction works. a. Write the chemical equation for the reaction studied in this experiment. b. Write chemical equations corresponding to the “clock” part of the experiment (i.e., the part that includes thiosulfate and starch). c. Explai ...
... RATES OF REACTIONS/A CLOCK REACTION 1. Understand how the Clock Reaction works. a. Write the chemical equation for the reaction studied in this experiment. b. Write chemical equations corresponding to the “clock” part of the experiment (i.e., the part that includes thiosulfate and starch). c. Explai ...
3. Alkanes
... In bicycloalkanes, we name the compound according to the total number of carbons encompassed by the two rings. Numbering starts at one of the bridgehead carbons and proceeds along the longest bridge to the other bridgehead, then along the next longest bridge back to the fist bridgehead. The shortest ...
... In bicycloalkanes, we name the compound according to the total number of carbons encompassed by the two rings. Numbering starts at one of the bridgehead carbons and proceeds along the longest bridge to the other bridgehead, then along the next longest bridge back to the fist bridgehead. The shortest ...
Exam 3 Review Sheet
... Can be followed by H2/Ni reduction of nitro to an amine o Friedel-Crafts alkylation: R-Cl, AlCl3. Watch for carbocation rearrangements! o Friedel-Crafts acylation: acid chloride, AlCl3 Can be followed by Wolff-Kishner (N2H4, KOH) or Clemmenson (Zn(Hg), HCl) ...
... Can be followed by H2/Ni reduction of nitro to an amine o Friedel-Crafts alkylation: R-Cl, AlCl3. Watch for carbocation rearrangements! o Friedel-Crafts acylation: acid chloride, AlCl3 Can be followed by Wolff-Kishner (N2H4, KOH) or Clemmenson (Zn(Hg), HCl) ...
Final Exam Review
... Topics that may be covered on the final: What are the products of free radical halogenation of an alkane (ex: Cl2/hv light)? What is the electivity for brominations vs. chlorinations? How are alkyne anions formed from terminal alkynes? Which radical or anion is most stable? Proper names for compound ...
... Topics that may be covered on the final: What are the products of free radical halogenation of an alkane (ex: Cl2/hv light)? What is the electivity for brominations vs. chlorinations? How are alkyne anions formed from terminal alkynes? Which radical or anion is most stable? Proper names for compound ...
Document
... Highly sensitive to the nature of the phosphine ligand Analogous complexes with alkylphosphine ligands are inactive Highly selective for C=C over C=O ...
... Highly sensitive to the nature of the phosphine ligand Analogous complexes with alkylphosphine ligands are inactive Highly selective for C=C over C=O ...
Enantioselective synthesis

Enantioselective synthesis, also called chiral synthesis or asymmetric synthesis, is defined by IUPAC as: a chemical reaction (or reaction sequence) in which one or more new elements of chirality are formed in a substrate molecule and which produces the stereoisomeric (enantiomeric or diastereoisomeric) products in unequal amounts.Put more simply: it is the synthesis of a compound by a method that favors the formation of a specific enantiomer or diastereomer.Enantioselective synthesis is a key process in modern chemistry and is particularly important in the field of pharmaceuticals, as the different enantiomers or diastereomers of a molecule often have different biological activity.