• Study Resource
  • Explore
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
Final Exam Review
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 ...
Organic Reactions 2.1- 2.3 - mccormack-sch4u-2013
Organic Reactions 2.1- 2.3 - mccormack-sch4u-2013

... •H and X (from H-X) where X= Cl , Br, or I •X and X from (X2) where X= Cl , Br, or I •H and H (from H2) ...
Oxacyclopropane (Epoxide) Synthesis: Epoxidation by
Oxacyclopropane (Epoxide) Synthesis: Epoxidation by

CHE 312 Exam III Review Sheet - Saint Leo University Faculty
CHE 312 Exam III Review Sheet - Saint Leo University Faculty

... Explain why an aromatic molecule like benzene reacts differently than the corresponding alkene (actually a –triene)? ...
Chapter 18 - people.vcu.edu
Chapter 18 - people.vcu.edu

... o HCN is a toxic gas, so most often it is made in situ from excess NaCN and HCl. o Step one: cyanide ion attacks the carbonyl. ...
Yeast Reduction #812
Yeast Reduction #812

... alcohol. However, these reducing agents do not react to form a chiral alcohol because the hydride can attack both sides of the planar carbonyl group yielding a mixture of both enantiomers.4 In order to achieve a chiral alcohol, a chiral reducing agent must be used. Chiral reducing agents such as the ...
R,S Configurations
R,S Configurations

doc CHEM 222 Lab exam with Answers
doc CHEM 222 Lab exam with Answers

... temperature and then allowing them to come back out of solution. 2.__T___ The purpose of refluxing is to carry out a reaction at the boiling point of the solvent. 3.__F___ All chemical reactions must take place in solution. 4.__T___ When a carbene is formed in the presence of an alkene, a cyclopropa ...
Development of New Organic Reactions by Exploiting Sulfur
Development of New Organic Reactions by Exploiting Sulfur

... (Graduate School of Natural Science and Technology, Kanazawa Univ.) The structures of target molecules in organic synthesis are becoming more complicated, and better functional compatibility and higher selectivity are required for the efficient synthesis of complex molecules. However, these requirem ...
Chapter 17: Aldehydes and Ketones: Nucleophilic Addition to the
Chapter 17: Aldehydes and Ketones: Nucleophilic Addition to the

... Deprotonation of the phosphonium salt with a strong base gives the ylide. A phosphorane is a neutral resonance structure of the ylide. ...
Document
Document

Lecture 8a - UCLA Chemistry and Biochemistry
Lecture 8a - UCLA Chemistry and Biochemistry

Functional Groups
Functional Groups

... catalyst causes the substitution of a hydrogen atom in the ring. ...
Organic Functional Groups: Aldehydes, Ketones, Acids, Esters
Organic Functional Groups: Aldehydes, Ketones, Acids, Esters

... similar sized alcohols. • Their boiling points are thus lower than alcohols. • They are good solvents for both polar and non-polar substances. • The oxygen is fairly reactive, and many of these compounds are toxic, carcinogenic. ...
12SN-23-10 OBJECTIVE: Identify how alcohols are classified and
12SN-23-10 OBJECTIVE: Identify how alcohols are classified and

... Identify how alcohols are classified and named. Predict how the solubility of an alcohol varies with the length of its carbon chain. Name the reactions of alkenes that may be used to introduce functional groups. Construct the general structure of an ether and describe how ethers are named. Identify ...
Carbonyl The carbonyl function, C=O, exists in a number of organic
Carbonyl The carbonyl function, C=O, exists in a number of organic

... The important feature of the carbonyl group is that the oxygen atom polarizes the double bond such that the carbon atom has positive character and the oxygen atom has negative character. The positive carbon atom is electrophilic and is responsible for much of the observed chemistry, such as acidity ...
aciee-2004-43-5442-palomo
aciee-2004-43-5442-palomo

... date, a few other zinc complexes bearing amino alcohol ligands[15] and macrocyclic thioaza ligands[16] have been described for the Henry reaction. Because the results are still poor, future developments in the area can be expected. In an important recent report, Evans et al.[17] have formulated that ...
Topic 3 – Chemical Structure and Bonding
Topic 3 – Chemical Structure and Bonding

... Reagents - concentrated HNO3 and concentrated H2SO4 ...
Lecture 9a - University of California, Los Angeles
Lecture 9a - University of California, Los Angeles

... Me3SiCl/Base OSiMe3 ...
Alcohol Synthesis by Electrophilic Hydration
Alcohol Synthesis by Electrophilic Hydration

PowerPoint Presentation - No Slide Title
PowerPoint Presentation - No Slide Title

... i.e. only single bonds Each double bond has 1 degree of unsaturation. Each ring has 1 degree of unsaturation. Each triple bond is 2 degrees of unsaturation. Compare a molecular formula to an alkane’s: every TWO Hydrogens less = I degree of unsaturation ...
TYPES OF REACTIONS IN ORGANIC CHEMISTRY
TYPES OF REACTIONS IN ORGANIC CHEMISTRY

... ~ Esters are formed when an alcohol and a carboxylic acid react together, (condensation reaction) ~ The H attached to the -OH group in the carboxylic acid molecule has been replaced by the alkyl group, it is a type of substitution reaction. ~ The reverse reaction of esterification is called hydrolys ...
Preface - Wiley Online Library
Preface - Wiley Online Library

... extrusions in that two separate molecular fragments are lost with the formation of two new carbon-carbon bonds (twofold extrusion reactions). This remarkable transformation parlays two important features of nitrogen, first the ease of introduction into carbonyl compounds, this time with hydrazine to ...
No Slide Title
No Slide Title

... i.e. only single bonds Each double bond has 1 degree of unsaturation. Each ring has 1 degree of unsaturation. Each triple bond is 2 degrees of unsaturation. Compare a molecular formula to an alkane’s: every TWO Hydrogens less = I degree of unsaturation ...
Bonds - MCAT Cooperative
Bonds - MCAT Cooperative

< 1 ... 156 157 158 159 160 161 162 163 164 ... 170 >

Asymmetric induction



Asymmetric induction (also enantioinduction) in stereochemistry describes the preferential formation in a chemical reaction of one enantiomer or diastereoisomer over the other as a result of the influence of a chiral feature present in the substrate, reagent, catalyst or environment. Asymmetric induction is a key element in asymmetric synthesis.Asymmetric induction was introduced by Hermann Emil Fischer based on his work on carbohydrates. Several types of induction exist.Internal asymmetric induction makes use of a chiral center bound to the reactive center through a covalent bond and remains so during the reaction. The starting material is often derived from chiral pool synthesis. In relayed asymmetric induction the chiral information is introduced in a separate step and removed again in a separate chemical reaction. Special synthons are called chiral auxiliaries. In external asymmetric induction chiral information is introduced in the transition state through a catalyst of chiral ligand. This method of asymmetric synthesis is economically most desirable.
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report