Friday, January 21, 2011 CHM 2211-8487 Quiz #02 Form BPage 1 of 1Please Last PRINTname:First name: UFID:______/20 pts. Put your answers in the spaces, or check Ror insert your answer Graded by Caroline1.(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. OPhCH2H(a) Grignard reagentEt2OHHOCH2PhCH2CH3CH3CH2MgBrOCH3CH2H(b) Work-up reagentsH2OHCl(c) Grignard reagentEt2OPhCH2MgBrWork-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 acetaldehyde into (E)-2-butene. (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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This note was uploaded on 10/04/2011 for the course CHM 2211 taught by Professor Castalleano during the Spring '06 term at University of Florida.