Tetrakis(hexylsulfinylmethyl)methane(I) and related compounds and polysulfoxides of crown thiaether(IV) were prepared and found to be used as effective catalysts in the binary phase alkylation of phenylacetonitrile(V) and phenylacetone(VI) with alkyl halides to afford selectively the corresponding monoalkylated products in high yields.
Addressing Challenges in Palladium-Catalyzed Cross-Couplings of Aryl Mesylates: Monoarylation of Ketones and Primary Alkyl Amines
作者:Pamela G. Alsabeh、Mark Stradiotto
DOI:10.1002/anie.201303305
日期:2013.7.8
Mor(DalPhos) for Me(sylates): Described are the first examples of ketone mono‐α‐arylation and primary aliphatic aminemonoarylation employing aryl methanesulfonate coupling partners. A range of functionalized arylmesylates were employed with dialkyl ketones, and also with primary and secondary amines as well as the otherwise challenging coupling partners acetone and methylamine. Ad=adamantyl.
4-alkyl-substituted 1-aminonaphthalene-2-carbonitriles and their analogues were prepared and evaluated for growth-inhibiting activity against four phytopathogenic fungi: Fusarium culmorum, Alternaria brassicicola, Botrytis cinerea and Penicillium expansum. The results obtained were compared with the activity of a commercial fungicide. The highest fungistatic activity was revealed by amino nitriles having hydrogen atoms
Liquid chromatographic resolution of racemic ketones as their oxime 3,5-dinitrophenyl carbamates on a chiral stationary phase
作者:Myung Ho Hyun、Young-Whan Park、In-Kyu Baik
DOI:10.1016/s0040-4039(00)80594-8
日期:——
Cyclic and acyclic chiral ketones have been resolved as their oxime 3,5-dinitrophenyl carbamates on a chiral stationary phase derived from (S)-1-(6,7-direthyl-1-naphthyl)isobutylamine.
Transition metal-free asymmetric and diastereoselective allylic alkylation using Grignard reagents: construction of vicinal stereogenic centers via kinetic resolution
作者:David Grassi、Alexandre Alexakis
DOI:10.1039/c4sc01003e
日期:——
The first transition metal-free diastereoselective and enantioselective asymmetricallylicalkylation (AAA) has been disclosed leading to the construction of vicinal tertiary/quaternary centers via a kinetic resolution protocol starting from readily available starting materials. This procedure is chemically appealing since no consecutive AAA or stereoselective metal-catalyzed/chiral ligand AAAs are