Volatile components of the oleoresin of Abies alba

The composition of the volatile compoents of the oleoresin ofAbies alba Mill, has been studied. In this oleoresin 19 monoterpene compounds have been identified, the main ones of which are - and -pinenes and limonene. Among the 24 sesquitepene compounds identified in the oleoresin, 4 new terpenoids have been found: 10S,11S-himachala-2,3-diene, 10S,11S-himachala-3(12),4-diene, humula-4,9-dien-8-ol, and 4S,5S,10S-selin-6-en-4-ol. For the first time, , , and -himachalenes, 9-epicaryophyllene, intermedeol, and longiborneol have been found in the oleoresins of conifers of the genus Albies. A distinguishing feature of firs of the Albae series is the low content of oxygen-containing monoterpenoids and of sesquiterpenoids of the bisabolane series.Novosibirsk Institute of Organic Chemistry, Siberian Branch, USSR Academy of Sciences. Translated from Khimiya Prirodnykh Soedinenii, No. 2, pp. 193–197, March–April, 1988.     

Na2Li3CoO4, das Erste quaternäre Oxocobaltat(III) der Alkalimetalle

Na₂Li₃CoO₄, the First Quaternary Oxocobaltate(III) of the Alkali Metals For the first time we obtained Na₂Li₃CoO₄ by annealing intimate mixtures of Co₃O₄, Na₂O₂, and Li₂O [Co : Na : Li = 1 : 2.2 : 10.1; 760°C; 21 d; Ag-tube] in form of transparent red single crystals. Structure Refinement [four-circle diffractometer data; AED2; MoKα-radiation; 1016 I_o(hkl); R = 2.6%; R_w = 2.0%; space group Pnnm; Z = 4; a = 818.7(3), b = 799.4(2), c = 655.1(2) pm] confirms the isotypism to Na₂Li₃GaO₄ [2] and Na₂Li₃FeO₄ [3]. Mean Fictive Ionic Radii, MEFIR, Effective Coordination Numbers, ECoN, and the Charge Distribution were calculated. The isotypism of Na₂Li₃CoO₄ and Na₂Li₃GaO₄ is compared graphically.     

Über das paramagnetische α-Fe2O3, das durch Spurenmengen gewisser Kationen ferromagnetisch wird,sowie deren Auswirkungen bei der Luftoxydation des Fe(OH)2

α-Fe₂O₃, containing small amounts of the oxides of Mg, Ni or Co, becomes ferromagnetic at 800°C, and this without any X-ray evidence for ferrite contaminations. The ferrites, and other ferromagnetic compounds, may, however, be prepared by air oxidation of Fe(OH)₂.     

Ueber das Dehydromorphin (Oxydimorphin, Pseudomorphin)

Ohne Zusammenfassung