:Hydrazones as New 4-Electrons Three Atomic Centers in Cycloaddition Reactions:
A Novel Approach for the Synthesis of Pyrazole Derivatives
Yehia A. Ibrahim, Sadek E. Abdou, and Sami Selim, Heterocycles, Volume 19, Issue 5 ( May, 1, 1982 ), Pages 819-824
DOI нет, но есть сайт:
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http://data.heterocycles.jp/FMPro?-db=journalred.fp5&-format=/w7/JournalDetail.html&-lay=data&-Token.0=aka&-Token.3=R-1982-05-0819&-recid=40292&-Script=citation&-find
