Quiz - Delocalized Systems | Delocalized π Systems
Which of the following molecules has a conjugated π system?
Conjugated π system: system of connected p orbitals with delocalized electrons
What dienophile should be used to synthesize the trans-4,5-dimethylcyclohex-1-ene?
What is the best synthetic condition to perform a radical halogenation of an allylic group?
Br2 in acid condition
Br2 in basic condition
NBS, CCl4, hν
What is the best condition to favor the kinetic product?
Low temperature + short time
Low temperature + long time
High temperature + short time
High temperature + long time
Irreversible conditions: low temperature + short time. The major product is the product from the fastest reaction
Reversible conditions: high temperature + long time. The major product is the most stable product
What is the thermodynamic product for the hydrobromination of 1,3-butandiene?
Which statement is true concerning the Diels-Alder reactions?
It is a [4+2] cycloaddition
It is accelerated when the diene is electron-rich
It is stereospecific: the endo product is favored
All of the above