Chiral imidate–ferrocenylphosphanes: synthesis and application as P,N-ligands in iridium(i)-catalyzed hydrogenation of unfunctionalized and poorly functionalized olefins
Chiral imidate–ferrocenylphosphanes: synthesis and application as P,N-ligands in iridium(i)-catalyzed hydrogenation of unfunctionalized and poorly functionalized olefins
The present invention relates to a use of a cyclic imidate as a ligand for catalysis in which the ligand contains sub-structure (Y) as a minimal structural motive, wherein the carbon atoms and the nitrogen atom can be optionally substituted by a chemical substituent.
Asymmetric synthesis of α-(1-oxoisoindolin-3-yl)glycine: synthetic and mechanistic challenges
作者:Tingting Li、Shengbin Zhou、Jiang Wang、José Luis Aceña、Vadim A. Soloshonok、Hong Liu
DOI:10.1039/c4cc05659k
日期:——
The NaOMe-catalyzed reactions between the chiral glycine Schiff base (S)-4 with 2-cyanobenzaldehyde 3 provide for a convenient preparation of the novel α-(1-oxoisoindolin-3-yl)glycine 1 of high pharmaceutical potential, which involve at least eight synthetic steps mechanistically.
A convenient method for the synthesis of 3-aryl isoindolinones via TfOH catalyzed C–H functionalization of arenes with 2-formylbenzonitriles is developed.
Copper-catalyzed cyclization of 2-cyanobenzaldehydes and 2-isocyanoacetates: an efficient strategy for the synthesis of substituted 1-aminoisoquinolines
作者:Wen Bao、Jun-Qi Wang、Xue-Tao Xu、Bang-Hong Zhang、Wei-Ting Liu、Lin-Sheng Lei、Huan Liang、Kun Zhang、Shao-Hua Wang
DOI:10.1039/c8cc04733b
日期:——
reaction of 2-cyanobenzaldehydes with 2-isocyanoacetates has been successfully developed providing an efficient strategy for the synthesis of substituted 1-aminoisoquinolines. The reaction proceeds smoothly under mild conditions with high efficiency, and might provide an alternative strategy for the synthesis of 1-aminoisoquinoline containing molecules.
A facile method for the synthesis of 2,3‐dihydro‐3‐methylidene‐1H‐isoindol‐1‐one and its derivatives carrying substituent(s) at C(5) and/or C(6) has been developed. The reaction of 2‐formylbenzonitrile (1a) with dimethyloxosulfonium methylide, generated by the treatment of trimethylsulfoxonium iodide with NaH in DMSO/THF at 0°, resulted in the formation of 2,3‐dihydro‐3‐methylidene‐1H‐isoindol‐1‐one