Question

Identify the appropriate reagent (A-H) you would use to accomplish the given transformation. A. MeONa B. H2, Pt C. t-BuOK D. 1) Hg(OAc)2, H2O; 2) NaBH4 E. HBr F. HBr, ROOR G. HCl H. 1) BH3-THF; 2) H2O2, NaOH

Answer 1

(See full question in attachment)

Answer:

A. MeONa

Explanation:

One of the methods to prepare alkenes are eliminations.

The E2 reaction (for elimination, bimolecular) occurs when an alkyl halide  is treated with a strong base, such as hydroxide ion or alkoxide ion (RO⁻).

It is the most common mechanism that occurs for an elimination.

The methoxide ion is a strong base that will attack the neighboring hydrogen of the halide ion and will start removing H⁺ at the same time that the double bond of the alkene begins to form and the group X begins to leave.

Then, the neutral alkene is produced  when the  C – H link and X group has left  with the electron pair of the bond  C – X (mechanism in attachment).

Therefore, MeONa would be an appropiate reagent.