• Study Resource
  • Explore Categories
    • 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
PDF document
PDF document

Organic Chemistry
Organic Chemistry

... molecule and name it. • Name any branches using the correct prefix and the ending “-yl” • Assign a number for the location on the parent chain where the branch is located. ...
Mechanism of Aldol Condensation
Mechanism of Aldol Condensation

... Aldol condensations are important in organic synthesis, providing a good way to form carbon– carbon bonds. For example, the Robinson annulation reaction sequence features an aldol condensation; the Wieland-Miescher ketone product is an important starting material for many organic syntheses. Aldol co ...
Novel amine-catalysed hydroalkoxylation reactions of
Novel amine-catalysed hydroalkoxylation reactions of

-23- ORGANIC CHEMISTRY A. STRUCTURE AND ISOMERISM 1
-23- ORGANIC CHEMISTRY A. STRUCTURE AND ISOMERISM 1

... hydrolysis (substitution) - H2O and H+ or HOAmides hydrolysis (substitution) - H2O and H+ or HOAmines (a) reaction with acid (acid-base) - e.g. HCl, CH3COOH, etc. (b) amide formation (substitution) - carboxylic acids/heat Phenols (a) reaction with strong base (acid-base) - NaOH (b) ester formation ( ...
Chapter 20: Carboxylic Acids and Nitriles
Chapter 20: Carboxylic Acids and Nitriles

... Arylamines are prepared from nitration of an aromatic compound and reduction of the nitro group  Reduction by catalytic hydrogenation over platinum is suitable if no other groups can be reduced ...
Substitution reactions of carbonyl compounds at the α
Substitution reactions of carbonyl compounds at the α

... – HO- and RO- bases are more useful for forming enolates from 1,3-dicarbonyl compounds or in reactions that involve both the enolate and carbonyl starting material. The enolate ion has two nonequivalent resonance forms (compare this with both the allyl anion and the carboxylate anion). The form wher ...
alcohols-II-12-ques
alcohols-II-12-ques

Problem Set 2
Problem Set 2

... Then indicate: a) The oxidation step: ----------------------------------------------------b) The reduction step: ------------------------------------------------------c) The oxidizing agent: ------------------------------------------------------d) The reducing agent: -------------------------------- ...
AP Biology Functional Groups of Carbon
AP Biology Functional Groups of Carbon

... carbonyl AND a hydroxyl are added or -COOH or –CO2H  The most oxidized of all the functional groups.  Can form hydrogen bonds.  Molecules with a carboxyl group are called carboxylic acids. ...
LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034 PART-A
LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034 PART-A

... 11. Give an example for α, β, γ and δ-elimination reaction. 12. State and explain the Hammond postulate to the bromination of n-propane. 13. How will you determine the reaction mechanism of hydrolysis of an ester using isotoping labeling method? 14. Write and explain the Steven’s rearrangement. 15. ...
Chapter 24. Amines
Chapter 24. Amines

... compound and reduction of the nitro group  Reduction by catalytic hydrogenation over platinum is suitable if no other groups can be reduced  Iron, zinc, tin, and tin(II) chloride are effective in acidic solution ...
Chapter 24. Amines - Houston Community College System
Chapter 24. Amines - Houston Community College System

... compound and reduction of the nitro group  Reduction by catalytic hydrogenation over platinum is suitable if no other groups can be reduced  Iron, zinc, tin, and tin(II) chloride are effective in acidic solution ...
Enantioselective Henry Reactions under Dual Lewis Acid/Amine
Enantioselective Henry Reactions under Dual Lewis Acid/Amine

... (entries 3 and 4) led to diminished yields and ee values. Interestingly, the absence of iPr2EtN could be partially compensated by increasing the quantity of the ligand (Table 2, entry 5) which is consistent with the amino alcohol ligand playing the double role of chiral inductor and base. Also, whil ...
replacing the - Shasha iSeminar
replacing the - Shasha iSeminar

... There are also side reactions involving the POCl3 reacting with the alcohol. Other reactions involving phosphorus halides Instead of using phosphorus(III) bromide or iodide, the alcohol is usually heated under reflux with a mixture of red phosphorus and either bromine or iodine. The phosphorus first ...
Alkanes – Molecules w/o functional Groups
Alkanes – Molecules w/o functional Groups

... – Changes in energy during a reaction, determines the extent to which a reaction goes to completion ...
CHE 106, F`95 E1(Word)
CHE 106, F`95 E1(Word)

... The structure of the male hormone, testosterone, is shown below. Testosterone contains CH 3 ...
BioN02 Introduction to organic chemistry Summer 2014
BioN02 Introduction to organic chemistry Summer 2014

... Ethers contain a H-bond acceptor, O, but no H-bond donor Dimethyl ether is soluble in water Diethyl ether is miscible in water Ethers with larger alkane groups are water insoluble Diethyl ether is anesthetic ...
Excercises 6-10
Excercises 6-10

... 3. Draw   the   reaction   scheme   and   the   reaction   profile   of   a   nucleophilic   substitution   via   the   SN2  mechanism  from  the  starting  material  (R)-­‐2-­‐iodopentane  and  sodium  phenolate  to  the   corresponding  product ...
Enantioselective one-pot synthesis of dihydroquinolones via BINOL
Enantioselective one-pot synthesis of dihydroquinolones via BINOL

Module 02.indd
Module 02.indd

GCE A level 1094/01 CHEMISTRY CH4
GCE A level 1094/01 CHEMISTRY CH4

... Nowadays most phenol is produced by the cumene process with less than 5 % being made from coal tar. Recently a new process has been developed where phenol is made by the direct oxidation of benzene using nitrous oxide, N2O, as the oxidising agent. This reaction could be of particular value since N2O ...
Summary Notes All that you need given 1 week left
Summary Notes All that you need given 1 week left

... -Reaction with bromine -Reaction with hydrogen -Reaction with itself (addition polymerisation) Alcohol is formed from the reaction between an alkene and steam. Catalyst : Phosphoric (V) acid Chemical properties of alcohol -Burn in air to form carbon dioxide and water -React with carboxylic acid to f ...
Chemistry 211 - MiraCosta College
Chemistry 211 - MiraCosta College

... COURSE DESCRIPTION This course continues the one-year organic chemistry sequence begun in CHEM 210. Topics covered include the structure and reactivity of alcohols, aldehydes and ketons, organometalic compounds, carboxylic acids and derivatives, amines and other nitrogen functions, aromatic compound ...
Carboxylic Acids - University of Nebraska Omaha
Carboxylic Acids - University of Nebraska Omaha

< 1 ... 116 117 118 119 120 121 122 123 124 ... 157 >

Petasis reaction



The Petasis reaction (alternatively called the Petasis borono–Mannich (PBM) reaction) is the chemical reaction of an amine, aldehyde, and vinyl- or aryl-boronic acid to form substituted amines.Reported in 1993 by Nicos Petasis as a practical method towards the synthesis of a geometrically pure antifungal agent, naftifine, the Petasis reaction can be described as a variation of the Mannich reaction. Rather than generating an enolate to form the substituted amine product, in the Petasis reaction, the vinyl group of the organoboronic acid serves as the nucleophile. In comparison to other methods of generating allyl amines, the Petasis reaction tolerates a multifunctional scaffold, with a variety of amines and organoboronic acids as potential starting materials. Additionally, the reaction does not require anhydrous or inert conditions. As a mild, selective synthesis, the Petasis reaction is useful in generating α-amino acids, and is utilized in combinatorial chemistry and drug discovery.
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report