Why it is important that any aldehyde used in witting, Ask an Expert

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1. Why it is important that any aldehyde used in Witting reaction be free of carboxylic acid impurities?

2. Explain why the C=C stretching mode gives rise to a rather weak IR band in 1-methylcyclohexane, while in its isomer, methylenecyclohexene, the band is of medium to strong intensity.

3. Predict the major organic product formed in the following reaction: CH3CHzNOz + CHzO ~

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