Assignment:
Q1. Why it is important that any aldehyde used in Witting reaction be free of carboxylic acid impurities?
Q2. 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.
Q3. Predict the major organic product formed in the following reaction: CH3CH2NO2 + CH2O ->
Provide complete and step by step solution for the question and show calculations and use formulas.