Tetrahedron p. 3279 - 3282 (1983)
Update date:2022-08-11
Topics:
Tsuji, Jiro
Kezuka, Hiroaki
Toshida, Yomishi
Takayanagi, Hiroshi
Yamamoto, Keiji
Dihydrazones of α-diketones were oxidized by using Cu2Cl2/O2/pyridine system in dichloromethane at room temp to give disubstituted acetylenes.Although the dihydrazones were found to be oxidized with four equivalents of Cu(II) salt without oxygen, efficien
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