Answer to Question #350489 in Organic Chemistry for Subham Saikia Saha

Question #350489

Choose the correct option: Important factors that influence the E1 reaction mechanism

i. Electron donating ability of substituents

ii. Good leaving group

iii. solvents of high polarity

iv. All of the above


1
Expert's answer
2022-06-15T12:20:04-0400

The most important stage of E1 reaction is the first stage - the loss of a leaving group:



This stage depends on two main factors: a good leaving group X and stability of a carbocation.

The stability of a carbocation depends on its structure and solvent:

  • the electron-donating ability of substituents: more electron-donating substituents like alkyl groups make the carbocation more stable (carbocations, where R1 and R2 are alkyl groups, are more stable than carbocations with R1 = H and/or R2 = H);
  • solvents of high polarity: more polar solvent makes the carbocation more stabilized.


Therefore all 3 mentioned factors influence the E1 reaction mechanism.


Answer: iv. All of the above


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