Table of Abbreviations
Abbreviation
Meaning
Ar
aryl
Alk
alkyl
Boc
tert-butyloxycarbonyl
CAN
cerium ammonium nitrate
cat.
catalyst
18-crown-6
1,4,7,10,13,16-hexaoxacyclooctadecane
d
doublet
δ
chemical shift
DBU
1,8-Diazabicyclo[5.4.0]undec-7-ene
DCM
dichloromethane
DEAD
diethyl azodicarboxylate
DMF
N,N-dimethylformamide
d.r.
diastereomeric ratio
ee
enantiomeric excess
HMDS
bis(trimethylsilyl)amide
J
coupling constant
LN
+
2,6-lutidinium ion
LNO
2,6-lutidine N-oxide
m
multiplet
MeCN
acetonitrile
Ms
mesyl, methanesulfonyl

wave number
nBu
n-butyl
NHC
N-heterocyclic carbene
Ns
nosyl, 4-nitrobenzenesulfonyl