9,2018 MULTIPLE CHOICE. Be question. (4 pts, ea) sure to write the LETTER of you
ID: 1082674 • Letter: 9
Question
9,2018 MULTIPLE CHOICE. Be question. (4 pts, ea) sure to write the LETTER of your answer in the blank provided for each 1. To accomplish a Markovnikov addition of water to arn skeletal rearrangement, the best reagents would be: A) water and dilute acid water and concentrated acid B) C) 1. Hg(OAc)h, H2O 2. NaBHs, NaOH D) 1. BH, THF E) 1. OsO4, pyridine 2. H2O2, NaOH 2. NaHSOs, H O 2. Addition reactions of alkenes are characterized by: formation of a bond addition of two groups across a double bond breaking of,bond A and B B and C A) B) C) D) E) 3. The expected product(s) resulting from addition of Br2 to (E)-3-hexene would be: A) a meso dibromide B) a mixture of optically active enantiomeric dibromides. C) a mixture of optically inactive enantiomeric dibromides. D) (Z)-3,4-dibromo-3-hexene E) (E)-3,4-dibromo-3-hexene. 4. Which of the following alkene addition reactions occurs) specifically in an anti fashic A) hydroboration-oxidation B) addition of Br2 C) addition of H2 D) E) addition of HoO in dilute acid both A and B 5. What major product is expected from the following reaction? Br2 H20 Br Br Br Br A) IB)IC)I D) IV E)Explanation / Answer
1) option C is the answer.
BH3. THF addition to alkene occurs in anti Merkonikove addition.
2)
option E is the answer.
pi bond breaks during addition reaction.
3) option A ia the answer.
the product is meso compound and Br2 addition at trans addition.
4) option B) addition of Br2 is the answer.
5) option D is the answer.
H2O is add to more substituted carbon.
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