| Nitrogen fixation: Synthesis of heterocycles using molecular... 
 [Mori, Miwako; Akashi, Masaya; Hori, Masanori; Hori, Katsutoshi; Nishida, Mayumi; Sato, Yoshihiro Bulletin of the Chemical Society of Japan, 2004 , vol. 77, # 9 p. 1655 - 1670]
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                            | 4-Hydroxy-2-butenolide. A versatile reagent for the synthesi... 
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                            | CH bond activation by cationic platinum (II) complexes: Liga... 
 [Nitta; Soeda; Iino Bulletin of the Chemical Society of Japan, 1990 , vol. 63, # 3 p. 932 - 934]
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                            | 4-Hydroxy-2-butenolide. A versatile reagent for the synthesi... 
 [Journal of Organic Chemistry, , vol. 47, # 19 p. 3665 - 3668]
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