Set#9 - (d) iPr 2 N Li + (e) (f) (g) (h) Me N O O 2 N N O 2...

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Fall 2011 Mechanisms of Organic Reactions Chemistry 154/254 Problem Set 9 (11/11/11) Propose a reasonable mechanism for the following transformations: (a) N S O OH N S H O O + O Br MeO N O O N Ph O Ph O Br CN O OEt Br O O Ph N C O O NHPh O OEt O + Pyridine THF, HMPA + KCN Et 3 N (b) (c)
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Unformatted text preview: (d) iPr 2 N Li + (e) (f) (g) (h) Me N O O 2 N N O 2 N R 3 P THF O O O 2 N N + OEt O SEt O R 3 P t-BuOH EtS O O OEt R 3 P EtOH O O R 3 P PhCH 3 CF 3 Ph O MeO O O OMe + O OMe O O OMe F 3 C Ph...
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