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What Is the Appropriate Sequence of Reagents That Will

Question 26

Multiple Choice

What is the appropriate sequence of reagents that will produce the target molecule shown below from ethylbenzene?
<sup> </sup>What is the appropriate sequence of reagents that will produce the target molecule shown below from ethylbenzene? A) (1) HBr, H<sub>2</sub>O<sub>2</sub>; (2) KOC(CH<sub>3</sub>) <sub>3</sub> ; (3) MCPBA; (4) CH<sub>2</sub>=CPh<sub>2</sub> B) (1) NBS, hn ; (2) KOC(CH<sub>3</sub>) <sub>3</sub> ; (3) CHBr<sub>3</sub>, KO(CH<sub>3</sub>) <sub>3</sub> ; (4) a.LiCuPh<sub>2</sub>, b.H<sub>2</sub>O C) (1) H<sub>2</sub>SO<sub>4</sub>(aq.) , D ; (2) MCPBA; (3) CHBr<sub>3</sub>, KO(CH<sub>3</sub>) <sub>3</sub> ; (4) CH<sub>2</sub>=CPh<sub>2</sub> D) (1) Br<sub>2</sub>, FeBr<sub>3</sub> ; (2) MCPBA; (3) CHBr<sub>3</sub>, KO(CH<sub>3</sub>) <sub>3</sub> ; (4) Ph<sub>2</sub>COCl


A) (1) HBr, H2O2; (2) KOC(CH3) 3 ; (3) MCPBA; (4) CH2=CPh2
B) (1) NBS, hn ; (2) KOC(CH3) 3 ; (3) CHBr3, KO(CH3) 3 ; (4) a.LiCuPh2, b.H2O
C) (1) H2SO4(aq.) , D ; (2) MCPBA; (3) CHBr3, KO(CH3) 3 ; (4) CH2=CPh2
D) (1) Br2, FeBr3 ; (2) MCPBA; (3) CHBr3, KO(CH3) 3 ; (4) Ph2COCl

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