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Organic-Chem Questions
Organic Chem
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Predict the major products of the following reactions, and give the structures of any intermediates. Include stereochemistry where appropriate.
edict the major products of the following reactions, and give the structures of any intermediates. Include stereochemistry where appropriate.
Construct a simulated H1 NMR spectrum for methyl propanoate. Drag and drop the appropriate splitting patterns into the boxes on the chemical shift baseline, and add integration values above each signal. Splitting patterns and integrations may be used m
Organic chem
Organic chem
Substituents on an aromatic ring can have several effects on electrophilic aromatic substitution reactions. Substituents can activate or deactivate the ring to substitution, donate or withdraw electrons inductively, donate or withdraw electrons through re
Draw the major organic product for the following Friedel–Crafts acylation reaction:
Tertiary alcohols with two identical alkyl groups attached to the alcohol carbon can be made either from an ester and two moles of a Grignard reagent, or from a ketone and one mole of a Grignard reagent. Use retrosynthetic analysis to suggest one path of
Complete the mechanism for the reaction of butanone with NaBH4 followed by the addition of aqueous acid.
Draw the curved arrows to show the mechanism for the reaction of butanedioic (succinic) anhydride with methanol.
Complete the Frost circle (i.e., use the inscribed polygon method) for the cyclopentadienyl anion by clicking on the blue boxes to add electrons. Also, classify the aromaticity of the compound.
For the structure below, determine the total number of π electrons and the number of π electrons delocalized in the ring. Indicate whether the compound is aromatic, nonaromatic, or antiaromatic. Assume the structure is planar.
Indicate whether or not each of the following structures is considered to be aromatic.
Indicate whether or not each of the following structures is considered to be aromatic.
Indicate whether or not each of the following structures is considered to be aromatic.
Each cyclic structure shown below contains a heteroatom that has lone-pair electrons. For each structure, answer the following questions: Are the lone-pair electrons delocalized? Is the structure aromatic?
Indicate whether or not each of the following structures is considered to be aromatic.
For each structure below, determine the number of π electrons and indicate whether it is aromatic, nonaromatic, or antiaromatic.
For each structure below, determine the number of π electrons and indicate whether it is aromatic, nonaromatic, or antiaromatic.
Examination of the Fischer esterification mechanism continues
The Fischer esterification mechanism is examined in the following two questions in the assignment. Part 1 involves MeOH addition to form the key tetrahedral intermediate. Part 2 will involve loss of H2O to form the ester. Part 1 of 2:
Draw the major organic product for the following reaction. Do not draw counterions or byproducts.
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