128444-39-3Relevant academic research and scientific papers
(η3-allyl)palladium complexes bearing diphosphinidenecyclobutene ligands: Highly active catalysts for the hydroamination of 1,3-dienes
Minami,Okamoto,Ikeda,Tanaka,Ozawa,Yoshifuji
, p. 4501 - 4503 (2001)
Room-temperature hydroamination of 1,3-dienes with aniline [Eq. (1)] is efficiently catalyzed by cationic η3-allyl palladium complexes, prepared by treating [{(η3-allyl)PdCl)}2] with 1,2-diaryl-3,4-bis[(2,4,6-tri-tert-buty
BIS(PHOSPHINE)-CARBODICARBENE CATALYST COMPLEXES AND METHODS OF USING THE SAME
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Page/Page column 12; 13; 28; 29, (2015/11/09)
An organometallic complex of a tridentate bis(phosphine)-carbodicarbene ligand and a transition metal, is described. In some embodiments the ligand has the structure of Formula (I): The complexes are useful in methods of making an allylic amine carried ou
Intermolecular hydroamination of 1,3-dienes catalyzed by bis(phosphine)carbodicarbene-rhodium complexes
Goldfogel, Matthew J.,Roberts, Courtney C.,Meek, Simon J.
supporting information, p. 6227 - 6230 (2014/05/20)
A carbodicarbene (CDC)-based pincer ligand scaffold is reported, along with its application to site-selective Rh(I)-catalyzed intermolecular hydroamination of 1,3-dienes with aryl and alkyl amines. To the best of our knowledge, this is the first example of the use of a well-defined CDC complex as an efficient catalyst. Transformations proceed in the presence of 1.0-5.0 mol % Rh complex at 35-120 °C; allylic amines are obtained in up to 97% yield and with >98:2 site selectivity.
A modular approach to α,β-unsaturated N-aryl ketonitrones
Hood, Tyler S.,Bryan Huehls,Yang, Jiong
, p. 4679 - 4682 (2012/09/05)
A modular approach to α,β-unsaturated N-aryl ketonitrones has been developed. Specifically, condensation of anilines and enals followed by alkylation of the resulting α,β-unsaturated imines provided N-allyl anilines, which were subjected to oxidation with
Regioselective iron-catalyzed allylic amination
Plietker, Bernd
, p. 6053 - 6056 (2007/10/03)
(Chemical Equation Presented) Iron age: An air- and water-resistant iron(-II) catalyst, in the presence of triphenylphosphane under buffered conditions, allows for the highly regioselective and stereoselective allylation of primary aromatic amines. A broa
Gold-catalyzed intermolecular hydroamination of allenes with arylamines and resulting high chirality transfer
Nishina, Naoko,Yamamoto, Yoshinori
, p. 3314 - 3317 (2008/01/27)
(Chemical Equation Presented) Au contraire! Contrary to the relatively well-studied metal-catalyzed intramolecular hydroamination of allenes, the intermolecular reaction is rare and is here accomplished with a gold (III) catalyst. Aryl amines 2 react with
Ruthenium-catalyzed intermolecular coupling reactions of arylamines with ethylene and 1,3-dienes: Mechanistic insight on hydroamination vs ortho-C-H bond activation
Yi, Chae S.,Sang, Young Yun
, p. 2181 - 2183 (2007/10/03)
(Chemical Equation Presented) The cationic ruthenium complex [(PCy 3)2(CO)(Cl)Ru=CHCH=C(CH3)2] +BF4- was found to be an effective catalyst for the coupling reaction of aniline and ethylene to form a ~1:1 ratio of N-ethylaniline and 2-methylquinoline products. The analogous reaction with 1,3-dienes resulted in the preferential formation of Markovnikov addition products. The normal isotope effect of kNH/kND = 2.2 (aniline and aniline-d7 at 80°C) and the Hammett ρ = -0.43 (correlation of para-substituted p-X-C6H4NH2) suggest an N-H bond activation rate-limiting step for the catalytic reaction.
Stereoselective syntheses of allylic amines through reduction of 1-azadiene intermediates
Aguilar, Enrique,Joglar, Jesús,Merino, Isabel,Olano, Bernardo,Palacios, Francisco,Fustero, Santos
, p. 8179 - 8187 (2007/10/03)
The stereoselective synthesis of primary and secondary E-allylic amines by reduction of 1-azadiene intermediates is described. β-Enamino phosphonium salts are suitable starting materials to prepare secondary allylic amines. Two methods are reported for th
Nucleophilic addition to tricarbonyliron(0) complexes of 1-aza-1,3-dienes and the production of pyrroles
Danks, Timothy N.,Thomas, Susan E.
, p. 761 - 765 (2007/10/02)
The synthesis of a number of novel tricarbonyl(1-aza-1,3-diene)iron(0) complexes and their reactions with methyl-lithium are described. Addition proceeds under mild conditions and, in general, occurs at a metal carbonyl ligand; this leads via an unprecedented reaction to the production of several novel pyrroles.
