1、高等有机化学习题（2）高等有机化学习题(2)Problem 1. Calculate H for the reactionHf (Cl-F) = - 51.1 KJmol-12. The following reaction was described as a first-order reaction .Suggest a reaction mechanism.3. The following reaction was described as a second-order reaction. Suggest a reaction mechanism.4. Suggest a reactio
2、n mechanism for the reaction.5. The H andD of following reaction was determined.（1） Calculate the isotopic effect.（2） Suggest a reaction mechanism.6. Compare the each of the following pairs of reaction. Which reaction was more negative entropy of activation?(1) A B (2) A B 7. The base catalysis reac
3、tion of carbonyl compound includes two step：Lead out the dynamic equation for general base catalysis (2 -1 ) and specific base catalysis (2 -1 ) respectively. ( reaction rate = dproduct/dt)8.Lead out the dynamic equation for chlorination of alkane when step (3) is rate limiting step in reaction mech
4、anism.Problem 1. The pKas of m- and p-iodoxybenzoic acid in water at 25 are 3.50 and 3.44 respectively. Calculate m and p for the iodixy group (-IO2).2. Which is the series of constant for the reactions?3. What is the sign of for the reactions?(1) (2) (3) (4) (5) 4. The pKas of benzoic acid 、phenyl acetic acid and phenol are 4.20,4.31 and 9.98 respectively. Calculate pKas for the following compounds.3 / 33 / 3
