Friday, January 21, 2011 CHM 2211-8487 Quiz #02 Form APage 1 of 1Please Last PRINTname:First name: UFID:______/20 pts. Put your answers in the spaces, or check Ror insert your answer Graded by Khanh1.(6 pts) See problem 16.19(a)and (c) Suggest two combinations of aldehydesand Grignard reagentsthat might be used to prepare the same 2° alcohol – after work-up as detailed in (b). (b)For work-up, provide suitable reagentsthat convert the first-formed alkoxide (not to be shown) into the final product, the 2° alcohol as shown. OCH3CH2H(a) Grignard reagentEt2OPhCH2CH3CH2OHHPhCH2MgBrOPhCH2H(b) Work-up reagentsH2OHCl(c) Grignard reagentEt2OCH3CH2MgBrWork-up reagents are the same as in (b)(a) Aldehyde(c) Aldehyde_____ 2.(8 pts) See problems 16.23, 16.24. Show how a Wittig reaction can bring about the conversion of benzaldehyde into (E)-1,2-diphenylethene. (a)Draw the structure of the bromoalkanethat reacts with triphenylphosphine to form the corresponding (b)phosphonium salt; draw the structure (recall: salts come with
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