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Acid and Base Organic Chemistry

Acid Base Reaction Scheme

1. Offer an explanation of why anthracene preferentially forms a Diels-Alder adduct at 9,10 positions. 4. Outline a synthetic reaction scheme for the preparation of triphenylmethanol from: a. Methyl benzoate b. Diethyl carbonate

Conversion of Nerol into Alpha-Terpinol

Suggest a mechanism (using arrows/arrow pushing and intermediates if applicable) for the conversion of nerol (C10H18O) into alpha-terpineol (C10H18O) in the presence of dilute H2SO4. Please see attached .jpg for start and end product structure.

Organic chemistry reaction in the presence of Ag2O

When (S)-2-bromopropanoic acid [(S)-CH3CHBrCO2H] reacts with concentrated sodium hydroxide, the product formed (after acidification) is (R)-2-hydroxypropanoic acid, commonly known as (R)-lactic acid. This is the normal stereochemical result for an SN2 reaction. However, when the same reaction is carried out with a low concentr

Oxidation Reduction

I need help with oxidation and reduction for organic compounds and calculation of oxidation levels. Please see attachment. --- 1. Label each transformation below as oxidation, reduction or neither oxidation nor reduction. Show evidence (calculation of oxidation levels) to support you answer. 2. Rank the following compoun

Detection of Strong Acids

Which would you expect to be the stronger acid? a) B-chloroethyl or ethyl alcohol? b) isopropyl alcohol or hexafluroisopropyl alcohol? c) n-propyl alcohol or glycerol, HOCH2CHOHCH2OH?(2 should be subscripts) d) Which alcohol of each pair would you expect to be the stronger nucleophile?

p-methoxyphenol and acidity

Explain why p-nitrophenol is a stronger acid than phenol itself. Would p-methoxyphenol be a stronger or weaker acid than phenol?

stereoisomers of (S)-adenosylmethionine

How many stereoisomers of (S)-adenosylmethionine are theoretically possible? Enter your response as the integernumber. The higher PKa value corresponds to the { STRONGER / weaker } acid. State which one is right. Calculate the degree of unsaturation number of missing H2 units relative to an alkane for the Compound with

Chemistry General Questions

1. Write the electron configuration for Calcium. Draw a line angle structural formula for 3-methyl pentane 2. Draw the major and minor resonance structure for the carbonate ion (CO3^-2). Include any formal charges, Indicate which are the major resonance structures and why. 3. Consider the species CH3SO3H, CH3CH2OH and C

Aminobenzene

When aminobenzene is subjected to standard nitration conditions {HONO2/(HO)2SO2} poor yields 1-amino-3 itrobenzene are obtained. Briefly explain this result using resonance molecular structure formulas to support your arguments.

3 Lab Questions

1. Think and describe what you would do in each of the following situations which could happen in your laboratory. a. You are working at your station and the 100-mL round-bottom flask in which you are running a reaction in ether solvent suddenly catches fire. b. The person working across the laboratory bench from you allows

Methyl benzoate - Acid and Base Organic Chemistry

In preparation of methyl benzoate, what is the purpose of 1. washing the organic layer with sodium bicarbonate solution? 2. washing the organic layer with saturated sodium chloride solution? 3. treating the organic layer with calcium chloride pellets?

Identifying Unknown Substances

Compound A (C7H14O) burned with a yellow, nonsooty flame and did not decolorize a bromine-methylene chloride solution. It did give a positive 2,4-dinitrophenylhydrazine test, but a negative Tollens test. Treatment of the compound with lithium aluminum hydride followed by neutralization with acid, produced a Compound B, which gav

Imidazole Acting as a Nucleophile

Imidazole, acting as a nucleophile, catalyzes the hydrolysis of phenol acetate by attack on the carbonyl carbon atom of the ester. The imidazole displaces the phenoxide anion and forms acetyl imidazole. In turn, the acetyl imidazole is quite unstable in water and hydrolyzes to form acetic acid, and regenerates the imidazole mole

Physical Properties - Solubility, pH and Melting Point

Lower solubility in water: Glucose or stearic acid Lower pH in solution: Butanoic acid or 1,5-butanedioic acid Higher melting point: Trans-CH3(CH2)5CH=CH(CH2)7COOH or Cis-(same compund) Please briefly explain each so I can understand apply it in the future.

Draw Glutamic Acid and Glutamine

Draw out the complete structural formula for glutamic acid and glutamine. One has a pI of 5.65 and the other has a pI of 3.22. GIve a reason for the differences in the isoelectric points of these two compounds.

Naming IUPAC Compounds

The IUPAC name gives rum smell O = (double bond) H-C-O-C-C gives pineapple smell O = (double bond) C-C-C-C-O-C-C

Phenol & straight chain alcohol

The compound C6H5OH is a phelol, and C6H13OH is a straight chain alcohol. State if they will react with i) Potassium hydroxide & ii) acetic acid Give the equations for the reactions.

Considering Wittig Reaction

Consider aspects of the Wittig Reaction as well as the fact that Ph3P is nucleophilic. With those thoughts in mind, explain using a mechanism, the observation of the following result of the indicated reaction... Please see attached.

IUPAC and Reactions

1. Name each drawn compound (attached) by IUPAC. 2. Provide the product of each attached reaction in the box next to it.

IUPAC and SEAr Reactions

Name by IUPAC, Number in order of reactivity (1 = fastest, 2 = next, etc.) each series to SEAr, Indicate with arrow(s) all the positions on each rng where appreciable SEAr reaction would occur. See attached problems.

Nucleophilic aromatic substitution

Show the intermediates including all the resonance hybrid structures for the pentyl anion, that are formed. What products would expect to form and in what ratio. For some reason, I don't believe my reactions are done correctly. Could you please explain it to me the correct way? (Please see the attachment).

Aromatic Compounds and Conjugated Ring Systems

Both naphthalene and azulene have 10 pie electrons and are aromatic. Pentalene is apparently antiaromatic and is unstable even at -100 degrees C. Heptalene has been made but it adds bromine, it reacts with acids, and it is not planar. Is Huckle's rule applicable to these compounds? If so, explain their lack of aromaticity.

Identify Solid Unknown Using IR Spectra

Attached to this problem is an IR spectra of an unknown which is known to be a solid and after a few solubility and other test I think that it is a carboxylic acid. I needed some one else to verify. Please label peaks and give the name of compound.

Methyl Orange

Methyl Orange is an acid-base indicator. In dilute solution, at pH greater than 4.4, it is yellow. At pH=3.2 the solution appears red. Draw a structure of the species that is formed at the lower pH of the acid proton adds to the azo nitrogen atom adjacent to the aromatic ring containing the -SO3 group. Why does the proton add to