20 What would be the major product of the following reaction sequence? A) D) Equ

Question

20 What would be the major product of the following reaction sequence? A) D) Equal amounts of II and IV 21 NBS (N.Bromasuecimimide) is useful in the free radical promoted allylic bro as shown below Why is NBS a more practical reagent for this reaction than Br? A) Because NBs generates Brz slowly and keeps the (Bral low to avoid electrophilic addition to the alkene B) Because NBS is cheaper than Bri on a mole basis c) Because NBs has a high boiling point D) Because NBs is an organic molecule and is highly soluble in solvents such as Cci4 E) None of above

Explanation / Answer

15) A ( for detail see mechanism of these reagents) 16) B ( like dissolves like based on highest polarity property) 16) B (NaBr is more stable tha NaI so faster formation of this than NaI so not c!) .. hope it suffice your need!.. still you can message me for any doubt!

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