9. The free radical bromination of cis-1,2,3-trimethylcyclopropane yields equal amounts of (s)- meso-3-methyl-2,4-dibrom

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9 The Free Radical Bromination Of Cis 1 2 3 Trimethylcyclopropane Yields Equal Amounts Of S Meso 3 Methyl 2 4 Dibrom 1 (21.51 KiB) Viewed 28 times

9. The free radical bromination of cis-1,2,3-trimethylcyclopropane yields equal amounts of (s)- meso-3-methyl-2,4-dibromopentane and (dl)-3-methyl-2,4-dibromopentane as the sole reaction products. In contrast, bromination of trans-1,2,3-trimethylcyclopropane yields the same two products and a significant amount of (R)-meso-3-methyl-2,4- dibromopentane. Provide a detailed mechanistic analysis which accounts for the observed stereochemistry of the ring-opened dibromides.