Midterm Practice Questions Flashcards
Identify the one which is the perfect example for Isolated double bond?
1,4 pentadiene
Conjugated diene reacts with which among the following to form a cyclohexene?
Dienophile
Identify the statement which is related to Diels-Alder reaction?
Cyclic dienes react very slow than the linear chain dienes
A molecule in which more than one single bond separates two double bonds are
called as ____________
Isolated double bond
Which of the following functional groups is indicated by a strong and broad infrared absorption
around 3300 cm–1?
Alcohol
Which class of compound is an example of a carbonyl compound?
carboxylic acid
Why is sodium borohydride an important reagent in reducing a ketone?
It is a good source of the hydride ion (H-)
The reactant shown below can follow which type of reaction mechanism
Diels Elder Reaction
Dienes with bonds separated by exactly one σ bond are classified as ______.
conjugated
Identify the conjugated diene from the following options
4-methyl-1,3-heptadiene
What is the correct classification of the following pericyclic reaction?
cycloaddition
What would be the optimal conditions to achieve the following synthesis?
dilute aqueous H2SO4
The mechanism of hydroboration-oxidation must explain the observed _____ addition of the H and OH to the alkene as well as the _____ regiochemistry.
syn; anti-Markovnikov
The regioselectivity and stereospecificity in the hydroboration-oxidation of an alkene is best described as
Anti-Markovnikov orientation with syn-addition.
What reagent(s) would accomplish the following synthesis?
- BH3*THF; 2. NaOH, H2O2, H2O
