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What Is the Appropriate Sequence of Reagents That Will Produce

Question 31

Multiple Choice

What is the appropriate sequence of reagents that will produce the target molecule shown below from ethylbenzene? 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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