Give major products of reaction of the following 2, 2-dimethyl-ethylene oxide (isobutylene oxide or...

Question

Give major products of reaction of the following 2, 2-dimethyl-ethylene oxide (isobutylene oxide or 2,2,-dimethyloxirane). Explain iefly about their mechanisms.NaOMe H2SO4MeOH

David · Accepted Answer

Following is the answer: 
The reaction with NaOMe is a nucleophilic ring opening of epoxide. The nucleophile, methoxide 
anion, approaches the epoxide from least hindered side and results in a tertiary alcohol, Alcohol-A.  
Whereas the reaction of epoxide with MeOH, in presence of acid,

Give major products of reaction of the following 2, 2-dimethyl-ethylene oxide (isobutylene oxide or 2,2,-dimethyloxirane). Explain briefly about their mechanisms. NaOMe H2SO4 MeOH

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