Chapter 15: Q29. (page 570)
Question: Draw all resonance structures of the radical that results from abstraction of a hydrogen atom from the antioxidant BHA (butylated hydroxy anisole).

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Chapter 15: Q29. (page 570)
Question: Draw all resonance structures of the radical that results from abstraction of a hydrogen atom from the antioxidant BHA (butylated hydroxy anisole).

Answer

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Question: What is the major monobromination product formed by heating each alkane with Br2 ?

Question: Which alkyl halides can be prepared in good yield by radical halogenation of an alkane?

Question: Reaction of (CH3 )3 CH with Cl2 forms two products: (CH3 )2 CHCH2Cl (63%) and (CH3)3 CCl (37%). Why is the major product formed by cleavage of the stronger 1° C-H bond?
Question:A and B, isomers of molecular formula C3H5Cl3 , are formed by the radical chlorination of a dihalide C of molecular formula C3H6Cl2 .
(a) Identify the structures of A and B from the following NMR data:
Compound A: singlet at 2.23 and singlet at 4.04 ppmCompound B: doublet at 1.69, multiplet at 4.34, and a doublet at 5.85 ppm
(b) What is the structure of C?
Question: When HBr adds to (CH3)2C=CH2 under radical conditions, two radicals are possible products in the first step of chain propagation. Draw the structure of both radicals and indicate which one is formed. Then draw the preferred product from HBr addition under radical conditions.
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