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The reaction of 1-chloro-1-methylcyclohexane with Et3CO-K+ proceeds via an E2 elimination mechanism. The base (Et3CO-) removes a proton from the carbon adjacent to the chloride, which results in the formation of a carbanion intermediate. This carbanion then expels the chloride ion to form the alkene product. The major product of this reaction is 1-methylcyclohexene.