Zobrazeno 1 - 10
of 49
pro vyhledávání: '"J. D. Remijnse"'
Publikováno v:
Recueil des Travaux Chimiques des Pays-Bas. 88:911-928
The heterogeneous hydrogenation of hexamethyl-Dewar-benzene (1) over various transition metal catalysts has been studied. At 25° selective (> 95%) cis,exo addition of hydrogen was observed yielding 1,2,3,4,5 endo, 6 endo-hexamethylbicyclo[2.2.0]hex-
Publikováno v:
Recueil des Travaux Chimiques des Pays-Bas. 93:93-98
This paper describes the preparation and a PMR investigation of a series of deuterium derivatives of 1,1-dimethylcyclohexane, cis- and trans-1,3- and 1,4-di-t-butylcyclohexane, and cis,cis-1,3,5-tri-t-butylcyclohexane. Accurate PMR parameters are obt
Publikováno v:
Tetrahedron Letters. 12:3065-3068
Publikováno v:
Recueil des Travaux Chimiques des Pays-Bas. 92:804-808
The preparation of 1,1,3-triprotoperdeuterocyclohexane is reported. The low-temperature PMR spectrum of this compound shows a superposition of two 3-spin systems, originating from the two chair conformations. A long-range coupling constant between th
Publikováno v:
Recueil des Travaux Chimiques des Pays-Bas. 90:779-790
The preparation and PMR investigation of some specifically deuterated t-butylcyclohexanes is reported. The chemical shifts of the various ring protons and the vicinal axial-equatorial coupling constants have been determined accurately. The coupling c
Publikováno v:
Recueil des Travaux Chimiques des Pays-Bas. 89:658-666
The preparation of a specifically deuterated cyclohexane and some methyl-cyclohexanes by selective cis-addition of hydrogen to perdeuterated cyclohexene and 1-, 3-, and 4-methylcyclohexene is reported. The deuterium decoupled proton magnetic resonanc
Publikováno v:
Tetrahedron. 25:4455-4465
Compounds of the type R 1 R 2 CH-CHR 2 R 1 , in which R 1 is 2,6-dimethylphenyl and R 2 is hydrogen, methyl, or t-butyl, were synthesized and the meso and racemic isomers separated. A study of these compounds by PMR spectroscopy, including 13 C-satel
Publikováno v:
Chemischer Informationsdienst. 5
Publikováno v:
Chemischer Informationsdienst. Organische Chemie. 2
Publikováno v:
Chemischer Informationsdienst. Organische Chemie. 2