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Question 1
Which of the following combination can synthesize the following compound?
(1) (R)-2-butanol + TsCl / (2) NaCN/DMSO
(1) (S)-2-butanol + TsCl / (2) NaCN/DMSO
(1) (S)-2-butanol \( +\mathrm{H}_{2} \mathrm{SO}_{4} \) (heat)/ (2) HBr (3) \( \mathrm{NaCN} / D M S O \)
(R)-2-butanol + NaCN/DMSO
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