57959-50-9Relevant academic research and scientific papers
Enantioselective Rhodium-Catalyzed Addition of Arylboroxines to N-Unprotected Ketimines: Efficient Synthesis of Cipargamin
Zhu, Jinbin,Huang, Linwei,Dong, Wei,Li, Naikai,Yu, Xingxin,Deng, Wei-Ping,Tang, Wenjun
, p. 16119 - 16123 (2019)
Highly enantioselective rhodium-catalyzed addition of arylboroxines to N-unprotected ketimines is realized for the first time by employing chiral BIBOP-type ligands with a Rh loading as low as 1 mol %. A range of chiral α-trifluoromethyl-α,α-diaryl α-tertiary amines or 3-amino-3-aryloxindoles were formed with excellent ee values and yields by employing either WingPhos or PFBO-BIBOP as the ligand. The method has enabled an efficient enantioselective synthesis of cipargamin.
Tertiary amine compound, bisphosphine ligand, and intermediate and preparation method of tertiary amine compound
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Paragraph 0232; 0236-0239; 0240; 0247-0249, (2019/11/20)
The invention discloses a tertiary amine compound, a bisphosphine ligand, and an intermediate and a preparation method of the tertiary amine compound, and provides a tertiary amine compound preparation method, which comprises: under the protection of a ga
