• 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
Reactions of alcohols
Reactions of alcohols

... • Thionyl chloride, SOCl2 • Lucas reagent, HCl/ZnCl2 The first three also react with carboxylic acids to form acyl chlorides, while Lucas reagent only reacts with alcohols. ...
Problems - TigerWeb
Problems - TigerWeb

... c. addition of (CH3)2CuLi to an acid chloride ...
Grant MacEwan College - Faculty Web Pages
Grant MacEwan College - Faculty Web Pages

... Prerequisite: Minimum grade of C- in CHEM 161 or 261 The Faculty of Arts and Science strictly adhere to the notion of prerequisites, and University staff conducts prerequisite checks throughout the term. If it is discovered that you do not have the appropriate prerequisite for this course, you will ...
Kinetics and Equilibrium Review Page 1
Kinetics and Equilibrium Review Page 1

... D) solutions of ionic compounds 24. Beaker A contains a 1 gram piece of zinc and beaker B contains 1 gram of powdered zinc. If 100 milliliters of 0.1 M HCl is added to each of the beakers, how does the rate of reaction in beaker A compare to the rate of reaction in beaker B? A) The rate in A is grea ...
ch19 MSJ jlm
ch19 MSJ jlm

Chapter 26 Functional Groups and Organic Reactions
Chapter 26 Functional Groups and Organic Reactions

... it is said to be unsaturated (meaning that it would be possible to fit in more hydrogens if the double bonds were changed to single). Chains with one double bond take the suffix ene. Example: ethene CH2=CH2 Chains with one triple bond take the suffix – yne. Example: Ethyne CHΞCH ...
Alcohols and ethers
Alcohols and ethers

... • homologous series containing the OH hydroxyl group. • all names end in ol eg methanol, ethanol etc. • isomers are possible for alcohols containing 3 or more carbons. • label position of OH group so that it has the lowest number possible. • polyhydric alcohols contain more than one OH group eg prop ...
Molecular Formulas - Hatboro
Molecular Formulas - Hatboro

... outside of the classroom. The ultimate objective, of course, is to prepare you to take the AP Chemistry test on May 4, 2015, and in order to accomplish this, topics are covered very quickly. For this reason, most students take AP Chemistry after they already completed a year of high school chemistry ...
2202 Chapter 1 - Eric G. Lambert School
2202 Chapter 1 - Eric G. Lambert School

... Naming & Formulas 4. Hydrates - water mixed in with the ions - heating removes the water to make an anhydrous (dry) compound - use prefixes to indicate ratio of water to ions eg. CuSO4• 5 H2O copper (II) sulfate pentahydrate lithium chloride dihydrate 8:12 PM ...
Nucleophilic Substitution and b
Nucleophilic Substitution and b

I - Holland Public Schools
I - Holland Public Schools

... IV. Reaction Mechanisms * look at this reaction: ...
chm238f02.exam2
chm238f02.exam2

... (b) Given pKas: CH3OH = 45; CH3OH = 16; H2 = 38; H2O = 16; PhOH = 10: Predict the direction and Keq of the reaction above. ...
- Vijay Education Academy
- Vijay Education Academy

... (viii) butylbromide to pentan-1-ol. (ix) toluene to benzyl alcohol (x) 1-Propoxypropane to propyliodide (xi) ethylbromide to 1-ethoxyethane (xii) methyl bromide to 2-methoxy-2-methylpropane (xiii) ethylbromide to ethoxybenzene (xiv) ethanol to benzylethyl ether. 53. Identify the missing reactant or ...
View/Open
View/Open

... Cis-1-bromo-2-methylcyclohexane + CH3CH2O-Na+ ...
N-METAL COMPOUNDS
N-METAL COMPOUNDS

CHM238-01 EXAM 2 October 14, 2002 103
CHM238-01 EXAM 2 October 14, 2002 103

... 5. (12 pts) Preparation of alcohols by Grignard reagents reacted with C=O compounds is very important. (a) If the Grignard reagent were phenyl Grignard, PhMgBr, what C=O compound would be the best one to use in order to make the following alcohols. If it doesn’t work, write NR. (b) If the Grignard ...
X012/11/02
X012/11/02

... Do not change any of these details. 4 If any of this information is wrong, tell the Invigilator immediately. 5 If this information is correct, print your name and seat number in the boxes provided. 6 The answer to each question is either A, B, C or D. Decide what your answer is, then, us ...
chemical reaction - MRS. STOTTS CHEMISTRY
chemical reaction - MRS. STOTTS CHEMISTRY

... separates from the solution is known as a precipitate. 4. Color change ...
File
File

... 49. Write a sequential list of steps required to solve most typical stoichiometric problems. 50. Write the 12 mole ratios that can be derived from the equation for the combustion of isopropyl alcohol. 2C3H7OH (l) + 9O2 (g)  6CO2 (g) + 8H2O (g) 51. Write the equation for the complete combustion of e ...
Alcohols revisited
Alcohols revisited

... • homologous series containing the OH hydroxyl group. • all names end in ol eg methanol, ethanol etc. • isomers are possible for alcohols containing 3 or more carbons. • label position of OH group so that it has the lowest number possible. • polyhydric alcohols contain more than one OH group eg prop ...
Ch 10 Haloalkanes n haloarenes
Ch 10 Haloalkanes n haloarenes

... Cl bond in tert-butyl chloride gives 3 carbocation which is highly stable and favourable for SN¹ mechanism. Moreover, tert-butyl chloride (3°) bring a bulky molecule has steric hindrance which will not allow SN² mechanism to take place. Hence only SN1 mechanism can occur in tert-butyl chloride. Howe ...
Theoretical problems - Scheikundeolympiade
Theoretical problems - Scheikundeolympiade

... breath takes around 5 seconds. Estimate the number of collisions with the surface of the lungs during a single breath on a typical British summer day. You should assume that the pressure in the lungs remains constant at atmospheric pressure; this is a reasonable approximation, as the pressure in the ...
Introduction to Organic Chemistry/Practical
Introduction to Organic Chemistry/Practical

Notetakers
Notetakers

... Ethanol is used as both a solvent and as a fuel. It combusts completely in excess oxygen to produce carbon dioxide and water. C2H5OH(l) + 3O2(g)  2CO2(g) + 3H2O(l) H=-1371 kJmol-1  Ethanol is already partially oxidized, so it releases less energy than burning and alkane of comparable mass.  Ho ...
Exam 1 Review Sheet Chapter 15 Chemistry 110b
Exam 1 Review Sheet Chapter 15 Chemistry 110b

... groups. Know the mechanism of formation/hydrolysis for an acetal (e.g., acetaldehyde + 2CH3OH + H+(cat.)). Be aware of the utility of acetals and ketals [and their thio (sulfur) analogs] as protecting groups in organic synthesis. [10e, 744-750; 11e, 735-741] ...
< 1 ... 168 169 170 171 172 173 174 175 176 ... 333 >

Strychnine total synthesis



Strychnine total synthesis in chemistry describes the total synthesis of the complex biomolecule strychnine. The first reported method by the group of Robert Burns Woodward in 1954 is considered a classic in this research field. At the time it formed the natural conclusion to an elaborate process of molecular structure elucidation that started with the isolation of strychnine from the beans of Strychnos ignatii by Pierre Joseph Pelletier and Joseph Bienaimé Caventou in 1818. Major contributors to the entire effort were Sir Robert Robinson with over 250 publications and Hermann Leuchs with another 125 papers in a time span of 40 years. Robinson was awarded the Nobel Prize in Chemistry in 1947 for his work on alkaloids, strychnine included. The process of chemical identification was completed with publications in 1946 by Robinson and later confirmed by Woodward in 1947. X-ray structures establishing the absolute configuration became available between 1947 and 1951 with publications from J. M. Bijvoet and J.H. Robertson .Woodward published a very brief account on the strychnine synthesis in 1954 (just 3 pages) and a lengthy one (42 pages) in 1963.Many more methods exist and reported by the research groups of Magnus, Overman, Kuehne, Rawal, Bosch, Vollhardt, Mori, Shibasaki, Li, Fukuyama Vanderwal and MacMillan. Synthetic (+)-strychnine is also known. Racemic synthesises were published by Padwa in 2007 and in 2010 by Andrade and by Reissig.In his 1963 publication Woodward quoted Sir Robert Robinson who said for its molecular size it is the most complex substance known.
  • studyres.com © 2026
  • DMCA
  • Privacy
  • Terms
  • Report