Alireza F.

-Give the structure of the major organic product in the elimination reaction of (1R,2S,3R)-1-chloro-2,3-dimethyl-cyclohexane with hydroxide. Indicate the stereochemistry when necessary. 

-Provide a detailed mechanism for the acid-catalyzed hydrolysis of the ester tetrahydrofuran-2-one to form 4-hydroxybutanoic acid.

-Give the structure of the major product(s) of (1R,3S)-1-chloro-3-ethyl-1-methyl-cyclohexane in substitution reaction with acetate. Indicate the stereochemistry when necessary.

-Draw two stereoisomers of (2R,3S)-2,3-dichloropentane, including its enantiomer and diastereomer.

-Draw the two possible chair conformations for the cis isomer of 1-ethyl-3-methyl cyclohexane. Which conformation, if either, is more stable? Explain.