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- Part A What is the major product formed when the following compound undergo an E1 reaction? CH, CH CH;CH,C–CHCH;CH3 Br for bonds ond chargee) Atoms gnd TerAmong the choices shown, which reagents would lead to 3-pentanone from bromoethane? Al 1 Li Cul 2) C13CH2OTS | BI1 NECNn DMSO 2) CH3CH2M;Br 3)H2O C)CH13CH2-CO CI D CH3CH2-CO OCH2CI137. Give the suitable reagents for the following reactions. a) ? HO- ? b) с-он -CH2OH c) ? C-H C-OH d) ? CH3CH2CH2C-OH CH3CH2CH2C-ONa
- Choose the BEST reagent for carrying out the following conversion. or H (A) NaOH, H₂O B) NaBH4 C CH₂PPh3 All of the above CH₂OHDraw the major product(s) when the following molecule is reacted with excess NaOEt in EtOH, followed by aqueous acidic work-up. CH;CH,OĊCH(CH,)¿COCH,CH3 CHa8-6 Propose a mechanism for the following reaction.105 CH3 CH3 H;C- CH3 HC, PMe, (2 equiv.) H,C "CH3 PHCH, "CH3 PMey H,C H,C Me P How to draw the mechanism?
- Draw the structure of the major product for the following two reactions. (PhH = toluene) H H + + X ОН ОН Ph3P=CHCH3 pTsOH (cat) PhH7Which nuclophile tend to favor conjugate addition to an alpha, b'eta-unsaturated carbonyl CH3CH2)3 Nna Br CH,Li D LIATHY CH,CH20 13.Which of the following reaction condition will carry out the following transformation? он OCH3 осн а-1-LIAH4 2- H3O* d- 1- NaH 2- H30* b- 1- CH3MgBr с- 1-NaBHз 2- H30* 2- H3O*
- Identify the reagents needed for the given reaction. -c-CH3 || Ĉ-CH3 || ċ-CH2B1 Select one: HBr О НBr O Br2, H20 O Br2, hv O Br2, OHWhat is the best choice of reagent(s) to perform the following transformation? ОН O H20, H2S04 O Hg(OAc)2 and H2O; followed by NABH4 O BH3; followed by H2O2, NaOH O Os04; followed by NaHS03Draw the major product(s) when the following molecule is reacted with excess NaOEt in EtOH, followed by aqueous acidic work-up. CH;CH,CH,COOCH2CH3