Question

One of the reagents below gives predominantly 1,2 addition (direct addition) while the other gives predominantly 1,4 addition (conjugate addition). a) Which major organic product is the result of 1,2 addition? ---Select--- b) Draw the skeletal structure of major organic product A

Answer 1

Complete Question

The complete question is shown on the first uploaded image

Answer:

a

The correct option is reagent B

b

The skeletal structure of major organic product A is shown on the third uploaded image

Step-by-step explanation:

The mechanism of the reaction for A and B are shown on the second the second reaction and looking at this we can see that the reagent that predominately gives 1,2 addition is reagent B