Asymmetric Hydrocyanation of Benzaldehydes Catalyzed by (5R)-5-(4-Imidazolylmethyl)-2,4-imidazolidinedione
نویسندگان
چکیده
منابع مشابه
(1R,2S,5R)-2-Isopropyl-5-methylcyclohexyl 4-Aminobutyrate Hydrochloride
The title ester (1R,2S,5R)-2-isopropyl-5-methylcyclohexyl 4-aminobutyrate hydrochloride was obtained in 96% yield via Steglich esterification. The structure of the target compound was established by FTIR, HR-MS, 1H-NMR, 13C-NMR spectral analysis, and single crystal X-ray diffraction study. Single crystals of the title ester suitable for X-ray investigation were obtained by slow evaporation of t...
متن کامل(4S,5R)-4-Benzyloxy-5-[4-(cyclohexanecarbonyl)phenyl]-1-(4-methoxybenzyl)pyrrolidin-2-one
The title compound, C32H35NO4, is an unexpected product obtained in the SmI2-mediated radical cross-coupling of a lactam 2-pyridyl sulfone with an arone. The asymmetric unit contains two mol-ecules. In both mol-ecules, the core pyrrolidinone ring adopts an approximate envelope conformation (with the C atom bearling the benzyloxy substituent as the flap) and the cyclo-hexyl ring has a chair conf...
متن کامل3-Chloro-4-dimethylamino-5-[(1R,2S,5R)-2-isopropyl-5-methylcyclohexyloxy]furan-2(5H)-one
The title compound, C(16)H(26)ClNO(3) contains one almost planar furan-one ring [maximum deviation of 0.021 (2) Å for the O atom] with a stereogenic center (S) and one cyclo-hexane ring which displays a chair conformation and has three stereogenic centers [S at the C atom bearing the isopropyl group, R at the C atom attached to the O atom and R at the C atom bearing the methyl group].
متن کامل(S)-3-Chloro-4-(4-ethylpiperazin-1-yl)-5-[(1R,2S,5R)-2-isopropyl-5-methylcyclohexyloxy]furan-2(5H)-one
The title compound, C(20)H(33)ClN(2)O(3), was obtained via a tandem asymmetric Michael addition-elimination reaction of 3,4-dichloro-5-(S)-(l-menth-yloxy)furan-2(5H)-one and 1-ethyl-piperazine in the presence of potassium fluoride. The mol-ecular structure contains an approximately planar five-membered furan-one ring [maximum atomic deviation = 0.024 (2) Å] and two six-membered rings adopting c...
متن کاملAsymmetric catalytic [4 + 1] annulations catalyzed by quinidine: enantioselective synthesis of multi-functionalized isoxazoline N-oxides.
A highly regio-, chemo-, diastereo- and enantioselective organocatalytic [4 + 1] annulation of 2-halo-1,3-dicarbonyl compounds with Morita-Baylis-Hillman adducts catalyzed by commercially available, low cost quinidine for the preparation of synthetically unique and medicinally multi-functionalized isoxazoline N-oxides with three stereogenic centers including adjacent quaternary and tertiary ste...
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ژورنال
عنوان ژورنال: Bulletin of the Chemical Society of Japan
سال: 1991
ISSN: 0009-2673,1348-0634
DOI: 10.1246/bcsj.64.3743