N.e. Chemcat Corporation

National Institute of Advanced Industrial Science and Technology

Advanced Industrial Science and Technology

Shunya Onozawa

Hiroyuki Yasuda

Kazuhiko Sato

Yukio Takagi

Tomoteru Mizusaki

Norihisa Fukaya

Junchul Choi

An organometallic complex catalyst that makes it possible to obtain a higher yield of a desired product than conventional catalysts in a cross-coupling reaction. The organometallic complex catalyst has a structure represented by formula (1) and is for use in a cross-coupling reaction. In formula (1), M is the coordination center and represents a metal atom such as Pd or an ion thereof. R1, R2, and R3 may be the same or different and are a substituent such as a hydrogen atom. R4, R5, R6, and R7 may be the same or different and are a substituent such as a hydrogen atom. X represents a halogen atom. R8 represents a substituent that has a &#x3c0; bond and 3-20 carbon atoms. With regard to the electron-donating properties of R1-R7 with respect to the coordination center M of the ligand containing R1-R7 that is indicated in formula (2), R1-R7 are arranged in combination such that the TEP value obtained from infrared spectroscopy shifts toward the low frequency side compared to the TEP value of the ligand of formula (2-1). 

Organometallic complex catalyst

An organometallic complex catalyst is disclosed for use in a cross-coupling reaction. In formula (1), M is the coordination center and represents a metal atom such as Pd or an ion thereof. R, R, and Rmay be the same or different and are a substituent such as a hydrogen atom. R, R, R, and Rmay be the same or different and are a substituent such as a hydrogen atom. X represents a halogen atom. Rrepresents a substituent that has a &#x3c0; bond and 3-20 carbon atoms. With regard to the electron-donating properties of R-Rwith respect to the coordination center M of the ligand containing R-Rthat is indicated in formula (2), R-Rare arranged in combination such that the TEP value obtained from infrared spectroscopy shifts toward the high frequency side compared to the TEP value of the ligand of formula (2-1). 

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Tsukuba, Japan

Shunya Onozawa