Chemistry Organic Chemistry Level: Misc Level
With acid catalysis, one mole of cis-1,2-cyclopentadiol readily forms an acetal with formaldehyde whereas one mole of trans-1,2-cyclopentadiol does not.Explain with the aid of structural formulas.
Chemistry Organic Chemistry Level: Misc Level
Grignard reagents are not the only carbon nucleophiles.Recall the SN2 reactivity of the conjugate base of a terminal alkyne(see Exercise 4 in Lesson 8).Draw structures for the products in the following sequence;
Chemistry Organic Chemistry Level: Misc Level
Draw complete structures for;
a)1,1,1-trichloro-5,5-dimethyl-2-octanone
(b) Z-2,3-dichloropropenal
Chemistry Organic Chemistry Level: Misc Level
Provide IUPAC names (absolute configuration, too!) for; CH3O, CH2CH3CH2OCl
Chemistry Organic Chemistry Level: Misc Level
Complete the reaction scheme below by placing one organic structure in each box;
Chemistry Organic Chemistry Level: Misc Level
Write out three balanced equations that represent a complete mechanism for the following overall reaction then label each step'' B/L''or''SN2''as appropriate.(Hint1; Your three equations should add up to the overall equation.Hint2;Sulfur is an excellent SN2 nucleophile.)
Chemistry Organic Chemistry Level: Misc Level
Label the B/L acids and bases in the following;
Chemistry Organic Chemistry Level: Misc Level
Generally, lower molecular weight alcohols that have been exposed to moist air are not pure.Explain why, in one or two sentences, using molecular terms.
Chemistry Organic Chemistry Level: Misc Level
Provide IUPAC names (absolute configuration, too!) for;C6H9O and C4H10O
Chemistry Organic Chemistry Level: Misc Level
Draw complete structures for;
(a) isopropyl propyl ether
(b) 3,5-dimethoxyphenol
Chemistry Organic Chemistry Level: Misc Level
When methyl benzoate is added to the sulfuric acid, the carbonyl group is protonated. From this, determine where the benzene ring will be nitrated (it will only be nitrated once).
Chemistry Organic Chemistry Level: Misc Level
Cellulose (shown below ) is also esterified with acetic anhydride to give a useful polymer, cellulose acetate acetate.Write the structure of a 3- link segment of this polymer chain.
Chemistry Organic Chemistry Level: Misc Level
If 10.2 g of acetic anhydride had been used, what would be the theoretical yield?
Chemistry Organic Chemistry Level: Misc Level
Compare the moles of glucose and acetic anhydride in this experiment.Which is the limiting reagent?Show calculations for determing the theoretical yield of glucose pentaacetate.
Chemistry Organic Chemistry Level: Misc Level
Since one molecule of acetic anhydride esterifes each OH group, how many moles of acetic anhydride are needed for each mole of glucose?
