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Transcript
Kim Keunho; Cha Jin Kun Total synthesis of cyathin A(3) and cyathin B(2). Angewandte Chemie (International ed. in English) (2009), 48(29), 5334-6.
RN
R
H
RN
RH++
R = SiMe3
pKa
26
R = i-Pr 36
Pummerer Rearrangement
L-Selectride =
DIAD = Diisopropylazodicarboxylate