Palladium (II)??Catalyzed Aerobic Intermolecular Cyclization of Acrylic Acid with Alkenes to α??Methylene?螃摸?butyrolactones

K Yonehara, Y Miyoshi, A Tsukajima…

Index: Yonehara, Koji; Miyoshi, Yasuyuki; Tsukajima, Aki; Akatsuka, Takeo; Saito, Makoto Advanced Synthesis and Catalysis, 2011 , vol. 353, # 7 p. 1071 - 1075

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Citation Number: 9

Abstract

Abstract The methodology in this article is a palladium (II)/copper (II)-or palladium (II)- catalyzed intermolecular cyclization of acrylic acid with alkenes to produce α-methylene-γ- butyrolactone derivatives using molecular oxygen as an environmentally benign oxidant. In this system, the carboxylato, especially trifluoroacetato, or trimethylacetato ligand, plays a quite important role to afford a high catalytic activity by suppressing the deposition of ...