Tetrahedron letters

Highly selective aldol reaction of dibenzoylmethanes with formaldehyde catalyzed by cobalt Schiff base complex under neutral conditions

K Maruyama, K Kubo, Y Toda, K Kawase, T Mashino…

文献索引：Maruyama, Kazushige; Kubo, Katsunobu; Toda, Yukinobu; Kawase, Kazuhiko; Mashino, Takahiro; Nishinaga, Akira Tetrahedron Letters, 1995 , vol. 36, # 31 p. 5609 - 5612

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被引用次数: 23

摘要

Coordinatively saturated hydroxocobalt (III) Schiff base complexes catalyze highly selective aldol reaction of dibenzoylmethanes with formaldehyde in methanol to give 1, 3- dibenzoylpropanes, resulting from retro-Claisen reaction of 1, 1, 3, 3-tetrabenzoylpropanes, which are obtained quantitatively in dichloromethane. Coordinatively saturated cobalt (III) Schiff base complexes ligating a substrate anion as a monodentate ligand is found to be ...