Buscar
Mostrando ítems 1-10 de 181
An expedient route to heterocycles througha-arylation of ketones and arylamides bymicrowave induced thermal SRN1 reactions
(Royal Society of Chemistry, 2014-03)
Microwave irradiation promotes a quick aromatic nucleophilic substitution by a thermally induced electrontransfer process to form new C–C bonds by the coupling of aryl radicals and enolate nucleophiles. Diverse2-aryl-1-p ...
Metal carbene N-H insertion of chiral alpha,alpha '-dialkyl alpha-diazoketones. A novel and concise method for the stereocontrolled synthesis of fully substituted azetidines
(Pergamon-elsevier Science LtdOxfordInglaterra, 2004)
Chemoenzymatic synthesis of fluoxetine precursors. Reduction of β-substituted propiophenones
(Elsevier, 2014-02-07)
Five endophytic yeast strains isolated from edible plants were tested in the reduction β-chloro- and β-azidopropiophenone for the preparation of optically active fluoxetine precursors. The biotransformation rendered not ...
Indium-mediated regioselective synthesis of ketones from arylstannanes under solvent-free ultrasound irradiation
(Elsevier, 2013-05)
The solvent-free indium-promoted reaction of alkanoyl chlorides with sterically and electronically diverse arylstannanes is a simple and direct method for the regioselective synthesis of primary, secondary and tertiary ...
AXIAL EQUATORIAL PROPORTIONS FOR 2-SUBSTITUTED CYCLOHEXANONES
(Amer Chemical SocWashington, 1993)
Axial/equatorial populations in alpha-hetero-substituted cyclohexanone oximes and O-methyl oximes
(John Wiley & Sons LtdW SussexInglaterra, 2000)
Palladium-Catalyzed One-Pot Conversion of Aldehydes and Ketones into 4‑Substituted Homopropargyl Alcohols and 5‑En-3-yn-1-ols
(2017)
Sequential treatment of 2,3-dichloropropene
with magnesium and n-BuLi generated the equivalent of 1,3-
dilithiopropyne, which adds regiospecifically to aldehydes and
ketones to produce homopropargyl alcohols. The ...
One-Pot Conversion of Aldehydes and Ketones into 1-Substituted and 1,4-Disubstituted 1,3-Enynes
(2018)
Sequential treatment of 2,3-dichloropropene with magnesium and n-BuLi generates the operational equivalent of 1,3-dilithiopropyne, which upon treatment with aldehydes or ketones, produces the corresponding alkoxy lithium ...
Regio- and enantio selective reduction of methyleneketoesters mediated by Saccharomyces cerevisiae
(Elsevier Science BvAmsterdamHolanda, 2007)
Asymmetric Hydrogenation of Furan- containing Ketones over Tartaric Acid-modified Raney Nickel Catalyst
(Pergamon-Elsevier Science Ltd, 2004-12)
The hydrogenation of b-keto esters containing a furan unit at the conjugated position to the b-carbonyl group was carried out over a chiral heterogeneous catalyst, tartaric acid-modified Raney nickel. The hydrogenation ...