Propose an efficient synthesis for the following transformation. X سر A The transformation above can be performed with some reagent or combination of the reagents listed below. Give the necessary reagent(s) in the correct order, as a string of letters (without spaces or punctuation, such as "EBF"). If there is more than one correct solution, provide just one answer. B HBr D - HBr, ROOR G H t-BuOK conc. H₂SO4, heat E H₂, Lindlar's cat. H dilute H₂SO4 C HCECNa F 1) 03; 2) DMS I H₂, Pt 4

Propose an efficient synthesis for the following transformation. The transformation above can be performed with some reagent or combination of the reagents listed below. Give the necessary reagent(s) in the correct order, as a string of letters (without spaces or punctuation, such as "EBF"). If there is more than one correct solution, provide just one answer. A B HBr, ROOR D HBr G شد NaOH HCECNa E CH3CH₂Br H conc. H₂SO4, heat C 1) R₂BH; 2) H₂O2, NaOH F H₂SO4, H₂O, HgSO4 I 1) LIAIH4; 2) H3O+

Propose an efficient synthesis for the following transformation: The transformation above can be performed with some reagent or combination of the reagents listed below. Give the necessary reagent(s) in the correct order, as a string of letters (without spaces or punctuation, such as "EBF"). If there is more than one correct solution, provide just one answer. A Mel D H₂, Pd G 1) R₂BH 2) H₂O2, H₂O B Br2 E H2, Lindlar's catalyst H 1) xs NaNH2 2) H₂O с Na, NH3 (1) F NaNH, Br

Propose an efficient synthesis for the following transformation: OH (b) The transformation above can be performed with some reagent or combination of the reagents listed below. Give the necessary reagents in the correct order, as a string of letters (without spaces or punctuation, such as “EBF"). If there is more than one correct solution, provide just one answer. A. 1) CH3MgBr; 2) H3O* B. CH31 C. 1) BH3-THF; 2) H2O2, NaOH D. PCC or DMP E. 1) LIAIH4; 2) H3O* F. conc. H2SO4, heat G. NANH2 H. H2SO4, H20, HgSO4 I. Ph3P=CH2 J. Br2, hv K. t-BUOK L. Na2Cr207, H2SO4, H2O