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Tetrahedron Letters | 1981

Heterogeneous deoxygenation of ketones

W. F. Maier; K Bergmann; W Bleicher; Paul von Ragué Schleyer

Abstract Relatively unhindered ketones are converted directly to the corresponding hydrocarbons in the presence of hydrogen at normal pressures and a Ni/Al 2 O 3 catalyst in a simple gas-phase reactor.


Tetrahedron Letters | 1980

An adamantane rearrangement. A new pathway

Paul von Ragué Schleyer; Peter Grubmüller; W. F. Maier; Otto Vostrowsky; Lars Skattebøl; Kjetil H. Holm

Tricyclo(4.2.2.o1,5)decane (7) in the presence of AlBr3 rearranges partly “forwards” to adamantane (1) and partly “backwards” to tetrahydrodicyclopentadiene (2, largely the oxo isomer). Intermediate 14, characterizing the 7→exo-8→14→3→1 forward pathway, is found only in small amounts. The detection of a new intermediate, 12, also shows that a second major rearrangement route from 7 to 1 is being utilized (see dashed lines in Figure 1).


Angewandte Chemie | 1979

Direct Removal of Functional Groups by Catalytic Hydrogenolysis

W. F. Maier; Peter Grubmüller; Irina Thies; Peter M. Stein; M. Anthony McKervey; Paul von Ragué Schleyer


Chemische Berichte | 1980

Hydrogenolysis of alkyl-substituted adamantanes, diamantanes, and triamantanes in the gas phase on a nickel-alumina catalyst

Peter Grubmüller; W. F. Maier; Paul von Ragué Schleyer; M. Anthony McKervey; John J. Rooney


Angewandte Chemie | 1979

Direkte Abspaltung funktioneller Gruppen durch katalytische Hydrogenolyse

W. F. Maier; Peter Grubmüller; Irina Thies; Peter M. Stein; M. Anthony McKervey; Paul von Ragué Schleyer


ChemInform | 1980

TRICYCLO(4.3.1.13,8)UNDEC-3-ENE (HOMOADAMANT-3-ENE). STABILITY OF BRIDGEHEAD OLEFINS

David J. Martella; M. Jun. Jones; P. Von R. Schleyer; W. F. Maier


ChemInform | 1982

HETEROGENEOUS CATALYSIS. VI. DIRECT REDUCTION OF ALCOHOLS TO HYDROCARBONS

W. F. Maier; Irina Thies; P. Von R. Schleyer


ChemInform | 1982

HYDROGENOLYSIS. PART V. HETEROGENEOUS DEOXYGENATION OF KETONES

W. F. Maier; K. Bergmann; W. Bleicher; P. Von R. Schleyer


ChemInform | 1982

HYDROGENOLYSIS. IV. GAS-PHASE DECARBOXYLATION OF CARBOXYLIC ACIDS

W. F. Maier; W. Roth; Irina Thies; P. Von R. Schleyer


ChemInform | 1980

CATALYTIC HYDROGENOLYSIS. 2. DIRECT CLEAVAGE OF FUNCTIONAL GROUPS BY CATALYTIC HYDROGENOLYSIS

W. F. Maier; P. Grubmueller; Irina Thies; Peter M. Stein; M. A. Mckervey; P. Von R. Schleyer

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