| Qu1: |
Arrange the following in order of relative reactivity towards
nucleophilic addition : |
|
| (a) (CH3)2C=O |
(b) CH3CHO |
(c) H2C=O |
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| Qu 2: |
What are the major products of reaction of each of the following with
(i) propanal and (ii) propanone ? |
|
| (a) LiAlH4 / THF then acidic workup |
(b) PhMgBr then acidic workup |
| (c) 1,2-ethanediol, H+, heat |
(d) 2,4-dinitrophenylhydrazine |
| (e) Ph3PCHCH3 |
(f) NH2OH |
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| Qu 3: |
Each of the following primary amine derivatives has more than one heteratom,
yet only one product is observed. |
|
rationalize the nucleophilic atom in each case :
| hydroxyl amine, NH2OH |
|
semicarbazide, NH2NHCONH2 |
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| Qu 4: |
How can 1-bromopropane be used to prepare each of the following ? |
|
| (a) ethanal |
(b) propanone |
| (c) propanal |
(d) 2-butanone |
| (e) pentanal |
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| Qu 5: |
Design efficient synthesis of the following from cyclohexanol: |
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