118949-63-6Relevant articles and documents
Rapid Asymmetric Synthesis of Disubstituted Allenes by Coupling of Flow-Generated Diazo Compounds and Propargylated Amines
Poh, Jian-Siang,Makai, Szabolcs,von Keutz, Timo,Tran, Duc N.,Battilocchio, Claudio,Pasau, Patrick,Ley, Steven V.
supporting information, p. 1864 - 1868 (2017/02/05)
We report herein the asymmetric coupling of flow-generated unstabilized diazo compounds and propargylated amine derivatives, using a new pyridinebis(imidazoline) ligand, a copper catalyst and base. The reaction proceeds rapidly, generating chiral allenes in 10–20 minutes with high enantioselectivity (89–98 % de/ee), moderate yields and a wide functional group tolerance.
An efficient and general one-pot method for the synthesis of chiral bis(oxazoline) and pyridine bis(oxazoline) ligands
Cornejo,Fraile,García,Gil,Martínez-Merino,Mayoral,Pires,Villalba
, p. 2321 - 2324 (2007/10/03)
An expeditious method for the synthesis of chiral box and pybox ligands is reported. The approach is based on a one-pot condensation reaction of chiral β-amino alcohols with a dinitrile using stoichiometric or catalytic amounts of zinc triflate. Yields gr
Synthesis of asymmetric iron-pybox complexes and their application to aziridine forming reactions
Redlich, Mark,Hossain, M. Mahmun
, p. 8987 - 8990 (2007/10/03)
The synthesis of a series of iron-pybox complexes and their employment in the catalytic asymmetric aziridine forming reaction is presented. When AgSbF6 is used as an initiator, the i-pr- and t-bu-pybox complexes produce 47% of the cis-aziridine
Asymmetric ring opening of meso epoxides with TMSCN catalyzed by (pybox)lanthanide complexes.
Schaus,Jacobsen
, p. 1001 - 1004 (2007/10/03)
The asymmetric ring opening of meso epoxides with TMSCN is catalyzed by (pybox)YbCl3 complexes, yielding the beta-trimethylsilyloxy nitrile ring-opened products with good enantioselectivities (83-92% ee). The reaction exhibits a second-order kinetic depen
Steric versus electronic effects of the ligand in the enantioselective palladium-catalyzed allylic alkylation with chiral oxazolinylpyridines
Chelucci, Giorgio,Deriu, Sebastiane,Pinna, Gerard A.,Saba, Antonio,Valenti, Raffaela
, p. 3803 - 3809 (2007/10/03)
Chiral oxazolinylpyridines bearing an oxazolinyl [bis(oxazolinyl)pyridines] or a cyano group in the 6-position of the pyridine ring were prepared and assessed in the enantioselective palladium-catalyzed allylic substitution of 1,3-diphenylprop-2-enyl acet