What would be the major product from the following action? 3,4 dina Myl 7,4 hexe

Question

What would be the major product from the following action? 3,4 dina Myl 7,4 hexene (B) CH3 (D) Which reagent would accomplish the following transformation most efficiently? CH3 (A) Pcl (B) HCl (C) Cla (D) KCl What would be the major product from the following 17. What would be the major product from the following reaction? CH, (A) NH CH3 (B) (D) H3C CH, 18. What would be the major product from this reaction? OEt NaSCH DMF (B) SCH3 (A) Tso CH Eto' 'sCH, (C) (D) 19. Which reagent(s) would accomplish this transformation? (A) Hasoa, Hao (B) MCPBA, then NaOH (c) 1. Ho (OAC)a (D) 1. BH3-THF

Explanation / Answer

15.

PCl3 is the correct answer

-OH can convert in to Cl with inversion of configuration can do only PCl3

16.

optionC is correct answer

in this mechanism carbo cation rearrangement takes place

during this process ring expansion takes place

17.

option C is correct answer.

18.

addition of water in antimarkonikov rule condition

is hydroboration oxidation

so option D is correct answer

this is SN2 reaction product will form inversion of configuration

option D is the correct answer

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