Question

with clear handwrite please

2. Provide a chemical explanation for each of the following observations. Where appropriate, use structures, equations and/or schemes to illustrate your answer.

Answer 1

O во сносна бан, СНа осн, сk chstң,0ң Here CH₂ CH200 will act as base, not as nucleophile because it will yield same starting material if nucleobluille substitution at carbonyl carbon take place AS CH₂ CH200 acts as a base, it will abstract a more audic proton from the substrate. As we know the proton ojacent to the carbonyl carbon is audic in nature in the given molecule, we have two such carbon @ 20. As we know electron releasing groups pes basic character & ves audic character. Therefore base will abstract proton from the position @ to create enodate in intermediate OGHS 0GHT OGHS Oftrine Now intra molemlar cylization will yield final product 1 THOGHS Lo Og H5 OGGHS "OGH5 Removal of Нco9 0 OGHS