What is aci form of nitroethane? Discuss.
Introduction of a nitro group into a hydrocarbon considerably enhances the thermodynamic acidity of the C—H bond. For example, nitroethane has PK 8.60 1991. The effect of the nitro goup is comparable to the effect of the two keto groups in acetylacetone
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Predict the product(s) of the following reactions:
(i) Nitration of azole
(ii) Friedel-Crafts acylation of pyridine
(iii) Reduction of pyrrole with zinc and ethanoic acid.
Write chemical reactions for the following:
(i) Kolbe Schmidt reaction
(ii) Strecker synthesis
(iii) Dieckmann cobndensation
(iv) Knoevenagel reaction
(v) Perkin condensation
Give the IUPAC names of the following compounds:
(i) 
(ii) 
(iii) BCH 2CH2CH2OH
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Explain Hell-Vollhard-Zelinski reaction. Also illustrate its synthetic importance.
write the chemical equation for following named reactions:
(a) Reimer-Tiemann reaction
(b) Kolbe reaction
(c) Claisen reaction
(d) Knoevenagel reaction
(e) Willgerodt reaction
Suggest the reaction that can best be used to prepare following ethers by Williamson ether synthesis
(a) CH3CH 2— O— CH= CH2
(b) 