Question

question 31 of 49
structure 3: draw the structure with a positively charged carbon.
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/ 〃 〃〃 c h n o
h₃c o — ch₃
n — c
h₃c o — ch₃

Explanation:

The original structure has a carbon bonded to two OCH₃ groups and a N(CH₃)₂ group, with four bonds (neutral charge). To make the carbon positively charged, we remove one of its lone pair-bearing substituents (here, we remove one of the O-CH₃ groups, leaving the carbon with only three covalent bonds). A carbon with three bonds and no lone pairs has a +1 formal charge.

Answer:

The positively charged carbon structure is:

     H₃C
      |
H₃C-N-C⁺(O-CH₃)
      |
     (removed O-CH₃)

Or visually, a central carbon with three bonds: one to N(CH₃)₂, one to O-CH₃, and no fourth bond, carrying a +1 charge.