A Neutral, Chiral, Bis(imidazolidine)-Derived NCN-Type Palladium Pincer Complex with Catalytic Activity
作者:Takayoshi Arai、Ikiyo Oka、Takuma Morihata、Atsuko Awata、Hyuma Masu
DOI:10.1002/chem.201204017
日期:2013.1.28
Caught in a pincer: A chiral, imidazolidine‐derived NCN‐type palladiumpincercomplex has been prepared using a ligand introduction technique. Single‐crystal X‐ray diffraction analysis of this complex showed a well‐organized asymmetric sphere. The neutralpalladium/chloride version exhibited significant catalyticactivity for the reaction of nitroalkenes with malononitrile to give products in a highly
Catalytic Asymmetric Aza-Friedel–Crafts-Type Reaction of Indoles with Isatin-Derived <i>N</i>-Cbz-Ketimines Using a Chiral Bis(Imidazolidine)-Containing NCN-Pincer Palladium Catalyst
作者:Takayoshi Arai、Kensuke Araseki、Junki Kakino
DOI:10.1021/acs.orglett.9b03148
日期:2019.11.1
A chiralbis(imidazolidine)-containing NCN-pincer palladium complex (tBu-PhBidine-Pd-OTf) was an efficient catalyst for the aza-Friedel–Crafts-type reaction of 1H-indoles with isatin-derived N-Cbz-ketimines to give chiral 3-aminobisindole compounds having differently oxidized indole units with high enantioselectivities.