%0 Journal Article %T An Unusual Reaction of a Pyridinium Ylide with 1,1-Dicyanoethylene Derivatives %A Yamada, Shinji %A Ohta, Emiko %J Chemistry Letters %V 37 %N 6 %P 628-629 %@ 0366-7022 %D 2008-05-10 %I Oxford University Press %~ DeepDyve