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Wed March 3 lecture
Wed March 3 lecture

... Before we begin studying reactions of aldehydes and ketones, it's worthwhile to revisit some chemistry that can be used for their preparation. We've seen several reactions recently that have been described as oxidations or reductions. Although these are familiar concepts, a brief discussion of these ...
ALDOL CONDENSATION
ALDOL CONDENSATION

Lab 9 - Academic Computer Center
Lab 9 - Academic Computer Center

... addition of two H atoms. The first H atom comes from a hydride, H-, of NaBH4. The second comes from the workup of the reaction, which is normally conducted in aqueous acid. Sodium borohydride, NaBH4, is the mildest of the three hydride reagents and is easy to use in the lab, because it is soluble in ...
Lecture12
Lecture12

Handout 7
Handout 7

... In conclusion, all steps included in the conversion of an aldehyde or ketone to acetal or ketal via hemiacetal or hemiketal as intermediates, are reversible. Performing the reaction in large excess of an anhydrous alcohol and a small amount of an anhydrous acid will strongly favour the formation of ...
Chapter 18 Ketones and Aldehydes 1) Which of the following
Chapter 18 Ketones and Aldehydes 1) Which of the following

... 60) Which series of reactions described below, if any, will result in the formation of 2-methylpentan-3one starting with 1-propanol? A) 1. (CH3)2CHMgBr/ diethyl ether ...
Alkane
Alkane

Nucleophilic Addition: The Grignard reagent
Nucleophilic Addition: The Grignard reagent

Chapter 10
Chapter 10

... Work-up in acidic medium will therefore protonate alkoxide to create an alcohol ...
Reductive etherification of substituted cyclohexanones with
Reductive etherification of substituted cyclohexanones with

... transfer to yield ethers. Until now two catalysts were always required to achieve this, i.e. a strong acid for the acetalisation and a transition metal for the reduction step.7,8 Various solid catalysts including zeolites have been applied in acid-catalysed acetal fomation9 and the MPV reaction.10,1 ...
The Aldol Condensation Preparation of 4
The Aldol Condensation Preparation of 4

... Preparation of 4-Methoxybenzalacetone In this experiment 4-Methoxybenzalacetone, obtained through an aldol condensation of 4-Methoxybenzaldehyde and Acetone, will be synthesized in a one pot reaction. ...
Chapter 20 reactions of carbonyls
Chapter 20 reactions of carbonyls

... • Carbonyl compounds that also contain N–H or O–H bonds undergo an acid–base reaction with organometallic reagents, not nucleophilic addition. ...
Stereoselective reactions of the carbonyl group
Stereoselective reactions of the carbonyl group

Remodeling of the natural product fumagillol
Remodeling of the natural product fumagillol

7. Alkenes: Reactions and Synthesis
7. Alkenes: Reactions and Synthesis

... molecules, formed by polymerization  Alkenes react with ...
Functional Groups - La Salle University
Functional Groups - La Salle University

... oxycontin (slow release) percocet (w/ acetominophen) ...
Organic Chemistry I (CHEM 2010 and 2012)
Organic Chemistry I (CHEM 2010 and 2012)

... expected to read and study the material to be discussed prior to the lecture. This includes working in-chapter and end-of-chapter problems and exercises in the text. Students should review the material discussed until comprehension is acquired and seek assistance when necessary. It is also highly re ...
Experiment 7-Reduction
Experiment 7-Reduction

... A reduction is often defined as the gain of two hydrogen atoms or the loss of an oxygen atom, or both. This leads to a very important conversion reaction, where aldehydes and ketones are reduced to primary and secondary alcohols. O ...
11 - MSU Chemistry
11 - MSU Chemistry

... Solutions  for  Chapter  11  –  Nucleophilic  Substitution  at  C=O  with  Loss  of  Oxygen   ...
unit 17 organic compounds containing oxygen and nitrogen atoms
unit 17 organic compounds containing oxygen and nitrogen atoms

... synthetic organic chemistry as a means of carbonyl group protection. In some chemical reactions one functional group may interfere with intended reaction elsewhere in a complex molecule. We can often circumvent the problem in such cases by first protecting the interfering functional group, carrying ...
EXPERIMENT 6: Reactions of Carbonyl Compounds: Qualitative
EXPERIMENT 6: Reactions of Carbonyl Compounds: Qualitative

... steam distillation in the presence of dilute acid. The most commonly used for identification are the 2,4-dinitrophenylhydrazones since simple carbonyl compounds give very colourful, highly crystalline solids. These solid derivatives can also be prepared very rapidly, which makes them an extremely us ...
Overview of the Reactions of Carbonyl Compounds
Overview of the Reactions of Carbonyl Compounds

... nucleophilic addition reaction but the mechanisms for both reactions involves the same 1st step. • In this step, the nucleophile bonds to the carbonyl carbon and thereby causes a carbon-oxygen bond to break. The carbonyl carbon rehybridizes from sp2 to sp3 and the carbonyl oxygen becomes negatively ...
Abstracts - Thieme Verlag
Abstracts - Thieme Verlag

... This chapter provides a concise overview of metal-catalyzed additions to alkynes that involve carbon monoxide and a nucleophilic species, such as water, an alcohol, a thiol, or an amine. Alkynes undergo very efficient hydroalkoxyesterifications of the type extensively studied in alkene carbonylation ...
Παρουσίαση του PowerPoint
Παρουσίαση του PowerPoint

... Before and during these syntheses, groups of chemists sitting around blackboards or piles of paper plan the work they are about to undertake. Possible routes are drawn out, criticized, modified again when the behavior of the compounds in the flask turns out to be different from what was expected, un ...
Topics 10 and 20 Outline
Topics 10 and 20 Outline

... • SN2 reactions are best conducted using aprotic, polar solvents and SN1 reactions are best conducted using protic, polar solvents. Electrophilic Addition Reactions: • An electrophile is an electron-deficient species that can accept electron pairs from a nucleophile. Electrophiles are Lewis acids. • ...
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1,3-Dipolar cycloaddition

The 1,3-dipolar cycloaddition is a chemical reaction between a 1,3-dipole and a dipolarophile to form a five-membered ring. The earliest 1,3-dipolar cycloadditions were described in the late 19th century to the early 20th century, following the discovery of 1,3-dipoles. Mechanistic investigation and synthetic application were established in the 1960s, primarily through the work of Rolf Huisgen. Hence, the reaction is sometimes referred to as the Huisgen cycloaddition (this term is often used to specifically describe the 1,3-dipolar cycloaddition between an organic azide and an alkyne to generate 1,2,3-triazole). Currently, 1,3-dipolar cycloaddition is an important route to the regio- and stereoselective synthesis of five-membered heterocycles and their ring-opened acyclic derivatives.
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