437606-63-8Relevant academic research and scientific papers
Preparation of optically active 4-substituted γ-lactones by lipase-catalyzed optical resolution
Shimotori, Yasutaka,Hoshi, Masayuki,Inoue, Keita,Osanai, Takeshi,Okabe, Hayato,Miyakoshi, Tetsuo
, p. 165 - 174 (2015/06/25)
Optically active 4-substituted γ-lactones (3 and 4) were synthesized effectively using lipase-catalyzed optical resolution. N-methyl-4-hydroxyalkanamides (rac-1a-i) as substrates were prepared from N-methylsuccinimide. The alkylation of N-methylsuccinimid
Lipase-catalyzed kinetic resolution of 2-phenylethanol derivatives and chiral oxa-Pictet-Spengler reaction as the key steps in the synthesis of enantiomerically pure tricyclic amines
Ketterer, Christian,Wuensch, Bernhard
experimental part, p. 2428 - 2444 (2012/06/01)
A series of 5,6,7,8,9,10-hexahydro-5,9-epoxybenzocycloocten-6-amines have been synthesized and pharmacologically evaluated in receptor binding studies (σ1, σ2, NMDA, κ, and μ receptors). The first key step of the synthesis was a chir
Organocatalytic asymmetric direct vinylogous aldol reactions of γ-crotonolactone with aromatic aldehydes
Pansare, Sunil V.,Paul, Eldho K.
supporting information; experimental part, p. 1027 - 1029 (2011/02/25)
The direct aldol reaction of γ-crotonolactone and various aromatic aldehydes is catalyzed by bifunctional aminothiourea and aminosquaramide organocatalysts to provide diastereomerically and enantiomerically enriched 5-substituted 2(5H) furanones (γ-buteno
Asymmetrie direct vinylogous aldol reaction of furanone derivatives catalyzed by an axially chiral guanidine base
Ube, Hitoshi,Shimada, Naoki,Terada, Masahiro
supporting information; experimental part, p. 1858 - 1861 (2010/06/20)
Ace of Base: The first highly enantioselectlve direct vinylogous aldol reaction of dihalogenated or α-thio-substituted furanones with aldehydes utilizes an axially chiral guanidine base catalyst. The method provides facile access to enantioenriched γ-subs
Synthesis of γ-valerolactones as the tea catechin metabolites
Nakano, Sousuke,Hamada, Masahiro,Kishimoto, Takao,Nakajima, Noriyuki
scheme or table, p. 1001 - 1005 (2009/06/28)
The synthesis of optically active γ-valerolactones in order to characterize the absolute configuration of the one of the (-)-epicatechin gallate metabolites was described. The determination of stereochemistry at C(4) position of γ-valerolactone suggested
Ligand effects in aluminium-catalyzed asymmetric Baeyer-Villiger reactions
Frison, Jean-Cédric,Palazzi, Chiara,Bolm, Carsten
, p. 6700 - 6706 (2007/10/03)
Asymmetric Baeyer-Villiger oxidations of racemic and prochiral cyclobutanones can be performed with chiral aluminium-based Lewis acids resulting in products with good enantioselectivities in high yields. By employing substituted BINOL derivatives as ligan
Chemoenzymatic synthesis of enantiomerically pure tricyclic benzomorphan analogues
Ketterer, Christian,Grimme, Stefan,Weckert, Edgar,Wuensch, Bernhard
, p. 3046 - 3050 (2007/10/03)
The key step in the synthesis of enantiomerically pure benzomorphan analogous tricyclic amines 2 is the kinetic resolution of secondary alcohol 7 using the lipase from Pseudomonas fluorescence. The (S)-configured alcohol (S)-7 and the (R)-configured ester
