219565-16-9Relevant academic research and scientific papers
Chiral Dirhodium Tetraphosphate-Catalyzed Enantioselective Si-H Bond Insertion of α-Aryldiazoacetates
Cao, Jin,Yang, Liang-Liang,Zhao, Tian-Yuan,Zhou, Qi-Lin,Zhu, Shou-Fei
, p. 9692 - 9698 (2021/07/26)
A highly enantioselective Si-H bond insertion reaction of α-aryldiazoacetates catalyzed by chiral spiro dirhodium tetraphosphate was developed. Various chiral α-silyl esters were prepared with high yield (up to 92%) and excellent enantioselectivity (up to
Synthesis of Rhodium Complexes with Chiral Diene Ligands via Diastereoselective Coordination and Their Application in the Asymmetric Insertion of Diazo Compounds into E?H Bonds
Ankudinov, Nikita M.,Chusov, Denis A.,Nelyubina, Yulia V.,Perekalin, Dmitry S.
supporting information, p. 18712 - 18720 (2021/07/20)
A new method for the synthesis of chiral diene rhodium catalysts is introduced. The readily available racemic tetrafluorobenzobarrelene complexes [(R2-TFB)RhCl]2 were separated into two enantiomers via selective coordination of one of them with the auxiliary S-salicyl-oxazoline ligand. One of the resulting chiral complexes with an exceptionally bulky diene ligand [(R,R-iPr2-TFB)RhCl]2 was an efficient catalyst for the asymmetric insertion of diazoesters into B?H and Si?H bonds giving the functionalized organoboranes and silanes with high yields (79–97 %) and enantiomeric purity (87–98 % ee). The stereoselectivity of separation via auxiliary ligand and that of the catalytic reaction was predicted by DFT calculations.
Highly enantioselective intermolecular carbene insertion to C-H and Si-H bonds catalyzed by a chiral iridium(iii) complex of a D4-symmetric Halterman porphyrin ligand
Wang, Jing-Cui,Xu, Zhen-Jiang,Guo, Zhen,Deng, Qing-Hai,Zhou, Cong-Ying,Wan, Xiao-Long,Che, Chi-Ming
supporting information; experimental part, p. 4299 - 4301 (2012/05/20)
The chiral iridium porphyrin [Ir((-)-D4-Por*)(Me)(EtOH)] displays excellent reactivity and stereoselectivity towards carbene insertion to C-H and Si-H bonds, affording corresponding products in high yields (up to 96%) and high enantioselectivities (up to 98% ee). The Royal Society of Chemistry 2012.
