有機合成化学グループ： 鈴木(教)研究室（＆旧 増山研究室）

Organic Synthesis Group, Sophia University

abstracts_2018_1

Synthesis of O,N,O-P Multidentate Ligands and The Formation of Early-Late Heterobimetallic Complexes
Noriyuki Suzuki,* Satoru Yoneyama, Keisuke Shiba, Takeshi Hasegawa, Yoshiro Masuyama
Inorg. Chim. Acta. 2018, 471, 355-363.
DOI: 10.1016/j.ica.2017.11.027
A tetradentate O,N,O?P ligand 4 designed for early-late heterobimetallic (ELHB) complexes was synthesized. The ligand 4 has an O,N,O-tridentate ligand moiety and a triarylphosphine group. The O,N,O-moiety based on lutidine scaffold selectively coordinated to early transition metals such as titanium and niobium in the reaction with the corresponding metal alkoxides to form mononuclear complexes. Coordination of the triarylphosphine moiety to the niobium atom was negligible in the Nb-ONO-P complex according to 31P NMR spectroscopy, whereas a part of the phosphorus atom coordinated to the titanium atom in the Ti-ONO-P complex. Addition of [PdCl(pi-allyl)]2 or [RhCl(cod)]2 to the Nb-ONO-P complex gave rise to the formation of ELHB complexes. Thus, the one-pot preparation of ELHB complexes was achieved by simple procedure.


O,N,O-P多座配位子と前周期-後周期異種複核錯体の合成
鈴木 教之,* 米山　智, 柴 圭将, 長谷川 剛士, 増山 芳郎
Inorg. Chim. Acta. 2018, 471, 355-363.
DOI: 10.1016/j.ica.2017.11.027
前周期-後周期異種複核錯体の合成のために設計されたO,N,O-P四座配位子を合成した。配位子は三座のONO部位とトリアリールホスフィン部位をもつ。ルチジン骨格に基づくONO部位はTi, Nbなどのアルコキシドと反応し単核錯体を与えた。ホスフィン部位はPd, Rh錯体と配位することが31P NMRにより確認された。これらは溶媒中に順に溶解するだけで容易に合成される点が長所である。