QuestionOrganic / carbocation stability and aromaticity
The relative increasing order of stability for the following carbocations is :
- I. Triphenylmethyl (trityl) cation
- II. Tricyclopropyl-substituted cyclopropyl cation (ring drawn without a double bond)
- III. Trimethylcyclopropenium cation
- IV. Tricyclopropylcyclopropenium cation
- V. Triphenylcyclopropenium cation
- (a) II < I < V < III < IV
- (b) I < II < V < III < IV
- (c) II < I < IV < III < V
- (d) I < II < III < IV < V
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