76154-10-4Relevant articles and documents
Chiral imine-containing quinoline oxazoline compound and metal complex thereof as well as preparation method and application
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Paragraph 0150-0155, (2022/01/12)
The invention discloses a chiral imine-containing quinoline oxazoline compound which is high in optical purity and has a structural formula as shown in a formula (1), and discloses a preparation method of the chiral imine-containing quinoline oxazoline compound. The invention also discloses a metal complex obtained by complexing the chiral imine-containing quinoline oxazoline compound and a transition metal salt, wherein the metal complex is shown as a formula (6). The synthetic route is efficient, and the total yield of two steps can reach 85%. The metal complex of the chiral imine-containing quinoline oxazoline compound can be used as a catalyst to catalyze hydrosilylation or hydroboration on a carbon-carbon or carbon heteroatom double bond, and is especially suitable for preparing chiral organic compounds with high regioselectivity and optical selectivity.
Ruthenium N-Heterocyclic Carbene Complexes for Chemoselective Reduction of Imines and Reductive Amination of Aldehydes and Ketones
Kathuria, Lakshay,Samuelson, Ashoka G.
supporting information, (2020/06/17)
Chemoselective reduction of imines to secondary amines is catalyzed efficiently by tethered and untethered, half-sandwich ruthenium N-heterocyclic carbene (NHC) complexes at room temperature. The untethered Ru-NHC complexes are more efficient as catalysts for the reduction of aldimines and ketimines than the tethered complexes. Using the best untethered complex as a catalyst, electronic and steric demands on the reaction was probed using a series of imines. Chemoselectivity of the catalyst towards imine reduction was tested by performing inter and intramolecular competitive reactions in a variety of ways. The catalyst exhibits a very high TON and TOF under anaerobic conditions.
Rhodium-Catalyzed C=N Bond Formation through a Rebound Hydrolysis Mechanism and Application in β-Lactam Synthesis
Chen, Long,Zhang, Linxing,Shao, Ying,Xu, Guangyang,Zhang, Xinhao,Tang, Shengbiao,Sun, Jiangtao
supporting information, p. 4124 - 4127 (2019/06/08)
A rhodium-catalyzed reaction of N-hydroxyanilines with diazo compounds to produce α-imino esters was developed. Distinct from the commonly accepted 1,2-H transfer for normal X-H insertion reactions, density functional theory calculations indicate that this transformation proceeds via a novel rebound hydrolysis mechanism. Furthermore, a three-component reaction was explored to synthesize highly functionalized β-lactams in good yields and diastereoselectivities.