Which sequence of reagents is best to accomplish the following ...

[Redwolflake15]

Which sequence of reagents is best to accomplish the following transformation?
 
  1.KOH followed by BD3/THF
  2.KOH followed by NaBH4
  3.Mg/ether followed by D2O
  4.Li/pentane followed by D2/CuI
  5.NaNH2 followed by D2/Pd

Question 2

What is the best reagent to carry out the transformation below?
   
  1.PBr3
  2.HBr/ether
  3.NBS/hv/CCl4
  4.Br2/hv
  5.NBS/H2O/DMSO

Question 3

What is the best reagent to carry out the transformation below?
 
  1.PBr3
  2.HBr
  3.NBS/hv/CCl4
  4.Br2/hv
  5.NBS/H2O/DMSO

Question 4

Which of the following radicals is expected to be the least selective?
  1.HO
  2.F
  3.Cl
  4.Br
  5.I

[xoxo123]

Answer to Question 1

3

Answer to Question 2

2

Answer to Question 3

3

Answer to Question 4

2

[Redwolflake15]

Excellent

[mcabuhat]

Thanks for the timely response, appreciate it