Zobrazeno 1 - 10
of 62
pro vyhledávání: '"J. A. Haberman"'
Publikováno v:
Annals of the New York Academy of Sciences. 121:80-89
Publikováno v:
Synthetic Communications. 28:2999-3009
Zinc, tin, and indium mediated Barbier-type cross coupling between carbonyl compounds and allyl halides have been investigated without additional solvent. The indium mediated reactions proceed effectively under solvent free conditions. To a more limi
Publikováno v:
Tetrahedron. 54:5129-5142
Through the catalysis of RuCl2(PPh3)3, the functional groups of homoallylic alcohols are repositioned to give allylic alcohols with controlled regioselectivity. The reaction proceeds most efficiently in an aqueous media. The selectivity in product fo
Publikováno v:
Tetrahedron. 54:2347-2364
The indium and tin-mediated carbonyl allylations of 1,3-dicarbonyl compounds have been studied in aqueous medium. The study led to the development of a novel two-atom carbocycle-enlargement in water. Five-, six-, seven-, eight-, and twelve-membered r
Autor:
G. R. Carignan, Donald M. Hunten, Paul R. Mahaffy, Wayne Kasprzak, Thomas M. Donahue, Sushil K. Atreya, Tobias Owen, J. A. Haberman, Dan Harpold, S. H. Way, Nelson W. Spencer, Hasso B. Niemann, Richard E. Hartle
Publikováno v:
Science. 272:846-849
The composition of the jovian atmosphere from 0.5 to 21 bars along the descent trajectory was determined by a quadrupole mass spectrometer on the Galileo probe. The mixing ratio of He (helium) to H2 (hydrogen), 0.156, is close to the solar ratio. The
Publikováno v:
ChemInform. 27
Publikováno v:
ChemInform. 28
The title compound, C 20 H 32 O 4 , is the major diastereomer obtained by the two-carbon ring expansion of a precursor containing fused five- and six-membered rings. It is shown to have the methyl, tert-butoxy and carboxymethyl substituents in mutual
Autor:
J. X. Haberman, Chao-Jun Li
Publikováno v:
ChemInform. 28
Six-, seven-, eight-membered rings are enlarged by one carbon-atom into seven-, eight- and nine-membered ring derivatives respectively, via indium or zinc mediated reactions in aqueous medium.
Publikováno v:
ChemInform. 29
Through the catalysis of RuCl2(PPh3)3, the functional groups of homoallylic alcohols are repositioned to give allylic alcohols with controlled regioselectivity. The reaction proceeds most efficiently in an aqueous media. The selectivity in product fo
Publikováno v:
ChemInform. 29
Zinc, tin, and indium mediated Barbier-type cross coupling between carbonyl compounds and allyl halides have been investigated without additional solvent. The indium mediated reactions proceed effectively under solvent free conditions. To a more limi