136859-93-3Relevant articles and documents
Unsymmetrical terdentate phosphorus-nitrogen-nitrogen (PNN) ligands: Effect of the M/L ratio and the pendant group on stereoselectivity
Cheng, Xiaohui,Hii, King Kuok
, p. 2045 - 2052 (2003)
Twelve novel, unsymmetrical terdentate pyrrolidine-based phosphorus-nitrogen ligands were prepared. These ligands promoted very high catalytic activity in the palladium-catalysed allylic substitution reactions of 1,3-diphenylpropenyl acetate with malonate
Chiral P,Olefin Ligands with Rotamers for Palladium-Catalyzed Asymmetric Allylic Substitution Reactions
Mino, Takashi,Yamaguchi, Daiki,Kumada, Manami,Youda, Junpei,Saito, Hironori,Tanaka, Junya,Yoshida, Yasushi,Sakamoto, Masami
supporting information, p. 532 - 538 (2021/03/09)
We synthesized a series of phosphine-olefin-type chiral aminophosphines, and we confirmed that these each exists as two rotamers at the C(aryl)-N(amine) bond. We also investigated the ability of these aminophosphines to act as chiral ligands for Pd-catalyzed asymmetric allylic substitution reactions, such as the alkylation of allylic acetates with malonates or indoles, and we found they gave high enantio-selectivities (up to 98% ee).
Formation of Allylpalladium Complexes and Asymmetric Allylation Involving Modular Bridging Diamidophosphite-Sulfides Based on 1,4-Thioether Alcohols
Borisova, Nataliya E.,Chernyshev, Vladimir V.,Chuchelkin, Ilya V.,Dejoie, Catherine,Firsin, Ilya D.,Gavrilov, Konstantin N.,Gavrilov, Vladislav K.,Goulioukina, Nataliya S.,Maximychev, Alexander V.,Perepukhov, Alexander M.,Tyurin, Vladimir S.,Zamilatskov, Ilya A.,Zheglov, Sergey V.,Zimarev, Vladislav S.
supporting information, p. 3645 - 3658 (2021/11/16)
A large family of P,S-bidentate diamidophosphite ligands were readily synthesized from accessible hydroxyl-thioether compounds. One type of Pd(II) cationic allylic complex with these diamidophosphites fulfilling a P-monodentate function, and three types,
Design of bifunctional chiral phenanthroline ligand with Lewis basic site for palladium-catalyzed asymmetric allylic substitution
Naganawa, Yuki,Abe, Hiroki,Nishiyama, Hisao
supporting information, p. 2674 - 2677 (2018/03/21)
Conceptually new bifunctional chiral ligands were developed. The axially chiral N,N-bidentate phenanthroline ligand (S)-1 was found to be effective for Pd-catalyzed asymmetric allylic substitution of allyl acetate and dialkyl malonate. The intramolecular Lewis basic group from the hydroxybinaphthyl structure of (S)-1 played a pivotal role in the high reactivity and enantioselectivity.
