dienophile वाक्य
उदाहरण वाक्य
मोबाइल
- Maleic anhydride is a dienophile in the Diels-Alder reaction.
- Norbornadiene is also a useful dienophile in Diels-Alder reactions.
- The HOMO of the dienophile reacts with the LUMO of the diene.
- The most important consideration in choice of dienophile is its relative orbital energies.
- Imines are electron-poor, and thus usually function as the dienophile.
- The catalyst encapsulates the diene and dienophile, increasing the effective concentration of reactants.
- As such, the highly strained trans-cyclooctene is used as a reactive dienophile.
- It is an excellent prochiral dienophile.
- What type of substitution pattern would it encourage if I say, used pyrrole as the dienophile?
- However, when the dienophile substituents are endo, there is considerable orbital overlap with the diene.
- Diels-Alder reactions occur between a conjugated diene and an alkene ( commonly known as the dienophile ).
- Partially negative atoms on the diene will bond to partially positive atoms on the dienophile, and vice versa.
- When the substituents of the dienophile are exo, there is no interaction between those substituents and the diene.
- This weak acid forms a diester, it undergoes additions across the double bond, and it is an excellent dienophile.
- For this reason, benzocyclobutadiene will readily dimerize or polymerize and it reacts as a dienophile in Diels-Alder reactions.
- The relationship is only valid for the groups on the diene alone, or the groups on the dienophile, alone.
- This is due to the alcohol precursor dehydrating under acidic conditions to produce both the diene and dienophile required for this reaction.
- A pyranone was similarly used as the dienophile by K . C . Nicolaou's group in the total synthesis of taxol.
- In intramolecular Diels-Alder Reaction, asymmetric induction can be induced through allylic 1, 3 strain on the diene or the dienophile.
- One cannot predict, via this principle, whether a substituent on the diene will be syn or anti to a substituent on the dienophile.
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