Chemistry-
General
Easy

Question

Which of the following reactions would give t r a n s-alkene?
I)
II)
III)
IV)

  1. (I)    
  2. (II)    
  3. (I), (III)    
  4. (II), (IV)    

The correct answer is: (I), (III)


    I. Meso compound (two same groups) + Anti-
    II. left parenthesis plus-or-minus right parenthesis Compound (two same groups) + Anti-eliminationdownwards arrow

    III. left parenthesis plus-or-minus right parenthesis Compound (two different groups) (but two eliminating groups in anti-position) + Anti-
    IV. left parenthesis plus-or-minus right parenthesis Compound (two different groups) (but two eliminating groups is syn-position) + anti-elimination

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