97677-83-3Relevant academic research and scientific papers
Catalytic enantioselective ethylalumination of terminal alkenes: Substrate effects and absolute configuration assignment
Parfenova, Lyudmila V.,Kovyazin, Pavel V.,Tyumkina, Tatyana V.,Makrushina, Alyona V.,Khalilov, Leonard M.,Dzhemilev, Usein M.
, p. 124 - 135 (2015/02/19)
The chemo- and enantioselectivity of the reaction of alkenes with AlEt3 catalyzed by bis(1-neomenthylindenyl)zirconium dichloride has been studied. The reaction with linear alkenes in a chlorinated solvent (CH2Cl2) gives m
One-pot synthesis of borolanes by reaction of aluminacyclopentanes with BF3· Et2O
Khafizova,Khusainova,Tyumkina,Dzhemilev
, p. 755 - 760 (2012/11/07)
A selective procedure was developed for the synthesis of substituted borolanes via transmetalation with BF3 · Et2O of 3-alkyl-1-ethylaluminacyclopentanes obtained from the corresponding terminal olefins and AlEt3 in the presence of Cp2ZrCl2 as a catalyst. 3-Substituted 1-fluoroborolanes were isolated and identified as 1 : 1 complexes with EtBF2.
Catalytic hydrogenation of carboxamides and esters by well-defined Cp*Ru complexes bearing a protic amine ligand
Ito, Masato,Ootsuka, Takashi,Watari, Ryo,Shiibashi, Akira,Himizu, Akio,Ikariya, Takao
, p. 4240 - 4242 (2011/06/21)
A novel catalytic method for the straightforward hydrogenation of carboxamides and esters to primary alcohols has been developed. Chiral modification in the ligand sphere of the well-defined Cp*Ru catalyst molecule opens up a new possibility for the development of an enantioselective hydrogenation of racemic substrates via dynamic kinetic resolution.
Concise synthesis of (+)-β-benzyl γ-butyrolactones from butynediol
Kamlage,Sefkow,Zimmermann,Peter
, p. 77 - 80 (2007/10/03)
The synthesis of optically active β-benzyl-γ-butyrolactones from butynediol via four transition metal catalysed reactions is reported. Key reactions are the hitherto unknown enantioselective hydrogenation of 2-benzyl-2-buten-1,4-diols using Ir(I) phosphinooxazoline catalysts and the regiocontrolled oxidation of the resulting 2-benzyl-1,4-butanediols to the β-substituted butyrolactones.
Regio- and Enantioselective Properties of the Lipase-catalyzed Irreversible Transesterification of Some 2-Substituted-1,4-Butanediols in Organic Solvents
Ferraboschi, Patrizia,Casati, Silvana,Verza, Elisa,Santaniello, Enzo
, p. 1027 - 1030 (2007/10/02)
The regioselectivity of the Pseudomonas fluorescens (P. cepacia) lipase (PFL)-catalyzed irreversible transesterification of 2-substituted-1,4-butanediols 1a-3a has been studied and, in the case of 3a, it has been shown that (R)- and (S)-diols are acylated
SYNTHESIS AND TRANSFORMATIONS OF METALLOCYCLES. 5. REGIOSELECTIVE SYNTHESIS OF β-SUBSTITUTED ALUMOCYCLOPENTANES BY THE CYCLOMETALLATION OF α-OLEFINS USING Et3Al IN THE PRESENCE OF Cp2ZrCl2
Dzhemilev, U. M.,Ibragimov, A. G.,Zolotarev, A. P.,Muslukhov, R. R.,Tolstokov, G. A.
, p. 2570 - 2578 (2007/10/02)
A new method has been proposed for the synthesis of N-, O-, and S-containing alumocyclopentanes by the reaction of Et3Al with functional α-olefins in the presence of catalytic amounts of Cp2ZrCl2.The alumocyclopentanes obtained may react with S8 to give β-substituted tetrahydrothiophenes.
