... CXXII." Reaction of Haloketenes with 1,3-Diaza-1,3-diene Compounds RYUJI NIWA,“ NOBUYA KATAGIRI,*'b and TETSUZO KATOb Central ... References and Notes 1) Part CXXI: T. Chiba, T. Kato, A. Yoshida, R. Moroi, N. Shimomura, Y. Momose, T. Naito, and C. Kaneko, Chem ...