A systematic study of the effect of substitution within the beta-amino acid framework indicates that both beta(2)- and beta(3)-amino acids catalyse the Hajos-Parrish-Eder-Sauer-Wiechert reaction with poor to reasonable levels of enantioselectivity. These results led to the evaluation of the conformationally constrained beta-amino acid (1R,2S)-cispentacin, which catalyses the Hajos-Parrish-Eder-...

‎three infinite families of finite abelian groups will be‎ ‎described such that each member of these families has‎ ‎the r'edei $k$-property for many non-trivial values of $k$‎.

‎three infinite families of finite abelian groups will be‎ ‎described such that each member of these families has‎ ‎the r'edei $k$-property for many non-trivial values of $k$‎.

The Wieland–Miescher ketone, Hajos–Parrish–Eder–Sauer–Wiechert and their analogues are bicyclic diketones essential as building blocks for the synthesis of several natural bioactive molecules. For this reason, since 1971, when Hajos Parrish Eder, Sauer, Wiechert reported stereoselective these compounds promoted by L-proline, numerous methodologies organocatalysts have been studied over years wi...

A 13-step synthesis of (+)-cyanthiwigin-AC (2) from (+)-Hajos-Parrish ketone derivative 8b and dimesylate 9c employing deconjugative spiro-bis-alkylation strategy is described. [reaction: see text].

The catalysis of the Hajos–Parrish reaction by cis - and trans -4,5-ethano-proline was explored experimentally computationally with DFT (?B97X-D MN15) DLPNO-CCSD(T).

http://jneurosci.msubmit.net JN-RM-3680-12R2 Feed-forward inhibition underlies the propagation of cholinergically induced gamma oscillations from hippocampal CA3 to CA1 Norbert Hajos, Institute of Experimental Medicine of the Hungarian Academy of Sciences Rita Zemankovics, Institute of Experimental Medicine Judit Veres, Institute of Experimental Medicine Iris Oren, Centre of Cognitive and Neuro...

Organic chemist, born 1926 (Budapest, Hungary). Ph.D. (Technical Sciences) Technical University, Budapest, 1950. MS, Technical University, Budapest,1947. Assistant Professor Technical University, Budapest, Hungary 1948-1957. Research scientist Princeton University, Princeton, NJ 1957-1960; Hoffmann-La Roche, Inc. Nutley, NJ 1960-1970; University of Vermont, Burlington, VT 1972-1973; University ...

and that the same holds if any n— 1 of the signs are replaced by strict inequality. Those unimodular lattices, such as Z , which have only the origin in common with the open cube shall be called critical, as shall the corresponding matrices. Minkowski conjectured, and Hajos [ l ] proved in 1938, that a critical lattice must contain one of the points (5»i, • • • , 5,-»), i = 1, • • • , n. If A i...