et al.Transition-metal-catalyzed asymmetric organic synthesis via polymer-attached optically active phosphine lignands.5. Preparation of amino acids in high ...
Journal of Fluorine ChemistryPreparation of optically active 2- (trifluoromethyl) alkan-1-ols by catalytic asymmetric hydrogenation. Iseki K,Kuroki Y,Nagai T...
Optically active α-amino acids were synthesized from esters of α-keto acid azomethines by catalytic hydrogenation. Solvent effect of the reaction was studied and the possible steric courses are discussed.
Baker G L,Fritschel S J,Stille J K.Transition-metal-catalyzed asymmetric organic synthesis via polymer-attached optically active phosphine ligands. 5. Preparation of amino acids in high optical yield via catalytic hydrogenation.Journal of ...
of alpha-iminophosphonates by molecular hydrogen can serve as a convenient method for the synthesis of racemic and optically active alpha-aminophosphonates....
Asymmetric catalytic hydrogenation methodology was applied to the synthesis of 2-[N-(4-difluoromethoxy)benzoylamino]cyclohexanecarboxylic acid derivatives. During the course of optimization, it was found that chiral Ru(II) dicarboxylate ...
In continuation to our earlier reviews on organocatalysis, a systematic approach for the synthesis of chiral 尾-amino acid derivatives in the presence of m...
An insoluble chiral polymer-supported rhodium complex closely related to the soluble Rh(I)-diop complex (diop = 2,3-O-isopropylidene-2,3-dihydroxy-1,4-bis(...
Asymmetric catalytic reduction with transition metal complexes. I. Catalytic system of rhodium(I) with (-)-2,3-0-isopropylidene-2,3-dihydroxy-1,4-bis(diphenylphosphino)butane, a new chiral diphosphine - ResearchGate
An in vitro assay has been developed for the antiterminating activity of the N gene product (pN) of bacteriophage lambda, based on the N-dependent stimulat...
An insoluble chiral polymer-supported rhodium complex closely related to the soluble Rh(I)-diop complex (diop = 2,3-O-isopropylidene-2,3-dihydroxy-1,4-bis(...
Stereospecific effects are observed in many of the reactions of complex ions which contain optically active coordinating agents. Some examples of such stereospecificity are described, and an explanation of them is given which depends on ...
Cyclooctatetraene complexes of the type M(C8H8)2R (M = Nb, Ta; R = C6H5, CH3) and Ta(C8H8)(CH3)3 have been prepared employing [K+]2[C8H8]2- as the reducing agent and source of C8H8. In the former the η4 and η8 rings interconvert on the...
Tertiary arsine complexes of cobalt form stable monomeric and dimeric dioxygen adducts. Reaction of oxygen with formally cobalt(I)-arsine complexes produce...
A series of five-coordinate complexes of the type [M(tetars)X]+, where tetars is a linear quadridentate tetra(tertiary arsine) ligand, where M = Ni(II), Pd...
A large number of successful methods for chirality transfer, using either stoichiometric or catalytic chiral auxiliaries, are in use today. However, there ...
Cyclization of 2-butenylene dicarbamates (RNHCOOCH 2CH=CHCH 2OCONHR: R = Ph, MeOC 6H 4, PhCH CH, etc.) in the presence of a palladium catalyst coordinated ...
Rhodium complexes containing chiral phosphine ligands catalyze the hydrogenation of olefinic substrates such as 伪-aminoacrylic acid derivatives, producing chiral products with very high optical yields. Elucidation of the mechanisms of s...
Rhodium- and ruthenium-catalyzed asymmetric hydrogenations reactions employing C 2 -symmetric chiral diphosphine ligands have a long history, and exceeding...
Dendrizymes are a new class of expanded ligands, designed for enantioselective catalysis with transition metal complexes. These expanded ligands consist of...
ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a Chem...
Three series of P-chiral diphosphines based on ferrocene (1a-f, 2a-c) and biferrocenyl skeletons (3a-c), including novel ligands 1f and 3c, were employed i...
