18. Grignard reagents react with oxirane (ethylene oxide) to form 1o-alcohols but can be prepared in
19. The regioselectivity and stereospecificity in the oxymercuration-demercuration of an alkene is b
22. Which of the following descriptions of the nucleoside uridine does NOT apply to the structure of
23. Which sequence ranks the following aromatic rings of this compound in order of increasing reacti
32. Rank the following molecules in order of increasing relative rate of SN1 solvolysis with methano
33. Which of the following compounds will react with methyl vinyl ketone in a Robinson annulation to
34. If one gauche interaction is 0.9 kcal/mol, what is the energy difference between cis-decalin and