Thanks a lot 19.4 Ream consistent with the explanation you presented in Accou e

Question

Thanks a lot 19.4 Ream consistent with the explanation you presented in Accou e explanation you presented in part (a)? Explain. for the substantial differences in relative rates of alkaline hydrolysis part (a)? Explain. int for the following pairs of carboxamides. O-NH2 Ph 10% C-N Ph and 103 Ph semiempirical MO method was used to calculate structure, The AMI HOMO-LUMO orbital coefficients, and charge distribution for several substituted cyclopropenones. The results for 2-phenylcyclopropenone, 2 phenyl-3-methylcyclopropenone, and 2,3-diphenylcyclopropenone are given in Table 1.P5a. Based on this information, make predictions about the following reactions: What will be the site of protonation of a cyclopropenone? b What will be the site of reaction of a cyclopropenone with a hard nucleophile, such as "OH? c. Is an alkyl or aryl substituent most effective in promoting reaction with a soft nucleophile?

Explanation / Answer

(a) Site of protonation of cyclopropenone would be C1 because it has both low LUMO and HOMO coefficients as so it is most likely to get protonated

(b) Hard nucleophile like OH- would react at C2 site of Cyclopropene because the overall energy for C2 HOMO and LUMO is less.

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