3335-97-5Relevant articles and documents
Palladium(II) Complexes Bearing a Mixed Set of aNHC/Py/PR3/I2 Ligands: Applications in α-Arylation of Amide and Suzuki-Miyaura Coupling Reactions
Biswas, Subhendu,Kundu, Koushani,Maity, Ramananda,Maji, Modhu Sudan,Majumder, Adhir,Naskar, Rajat
, (2021)
Complexes possessing abnormal or mesoionic carbene (aNHC or MIC) ligands are finding widespread applicability in organometallic chemistry owing to their various catalytic applications. Palladium(II) complexes bearing a mixed aNHC/Py/PR3/I2
Silyl Cyanopalladate-Catalyzed Friedel-Crafts-Type Cyclization Affording 3-Aryloxindole Derivatives
Ece, Hamdiye,Tange, Yuji,Yurino, Taiga,Ohkuma, Takeshi
supporting information, p. 935 - 939 (2021/02/22)
3-Aryloxindole derivatives were synthesized through a Friedel-Crafts-type cyclization. The reaction was catalyzed by a trimethylsilyl tricyanopalladate complex generated in situ from trimethylsilyl cyanide and Pd(OAc) 2. Wide varieties of diethyl phosphates derived from N -arylmandelamides were converted almost quantitatively into oxindoles. When N, N -dibenzylamide was used instead of an anilide substrate, a benzo-fused δ-lactam was obtained. An oxindole product was subjected to substitution reactions to afford 3,3-diaryloxindoles with two different aryl groups.
Copper-Catalyzed Asymmetric Propargylic Alkylation with Oxindoles: Diastereo- A nd Enantioselective Construction of Vicinal Tertiary and All-Carbon Quaternary Stereocenters
Xia, Jin-Tao,Hu, Xiang-Ping
, p. 1102 - 1107 (2020/02/15)
A copper-catalyzed asymmetric propargylic alkylation of propargylic acetates with 3-substituted oxindoles for the stereoselective construction of vicinal tertiary and all-carbon quaternary stereocenters in a 3,3-disubstituted oxindole skeleton has been realized. The reaction proceeded smoothly under the catalysis of Cu(MeCN)4PF6combined with a chiral tridentate ferrocenyl P,N,N ligand, leading to a broad range of optically active 3,3-disubstituted oxindoles in high yields and with excellent diastereo- A nd enantioselectivities.