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pro vyhledávání: '"Zheng-Zheng Meng"'
Publikováno v:
Synlett. 30:857-859
A new, one-pot, regioselective preparation of 2,5,6,7-tetrahydroimidazo[1,2-a]imidazol-3-ones by a sequential aza-Wittig/nucleophilic addition/cyclization reaction was developed. The aza-Wittig reactions of ethyl (2Z)-3-aryl-2-[(triphenylphosphoranyl