Aktivierung von Steroidsystemen zu alkylierenden Agenzien /  Activation of Steroid Systems to Alkylating Agents

Fig. I. ORTEP diagram of the structure of Za in the crystal.The crystal lattice"21 of 2a accomodates two sets of mutually symmetry-independent molecules (A, B). In accord with the "P('H}-NMR spectrum, the X-ray structure analysis of 2a also indicates an interaction between C11 and the lone pair of the phosphorus, which favors the thermal decomposition (CI 1-P distance = 327 pm). The PCl bond, of ca. 188 pm, is longer than the PCillkyl bonds; this is important, since cleavage of this bond is an important prerequisite for the formation of 3a.[Z 74 1Ej German version: Angew. Chem. 94 (1982) 395The complete manuscript of this communication appears in:Angew. Chem. Suppl.

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Lichtinduzierte Aktivierung von 7-Dehydrocholesterin

Schmitt-Rau

Wilk

1982

Angew. Chem. Int. Ed. Engl.

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J.Chem.Soc. 1953, 2372; E.A. Tyczkowski. L.A.B@low, J. Am.Chem.Soc. 75 0953) 3523; R.D. Dreedner, J.A. Young, 0959) 574. /2/ H . L . Roberts, J.Chem. SOC. 1960, 2774. /3/ H. Oberhmmer, K . Seppelt, Angew.Chem. 90 0978) 66; Angew.Chem.Int.Ed. Engl. 17(1978) G9; InorsChcm.17 (1978) 1435. /4/ A.Waterleld, R.Mews. Anpcw.Chem. 94 0982) Nr. 5; Angew.Chem.Int.Ed. Engl.tl(1982) Nr. 5; Angew.Chem.Suw1. 1982, vorstehend. /5/ J . Haase. H . Oberhammer, W.Zeil, O.Glemser, R.Mews. 2 . Naturforsch. A 26 (1971) 1333. /6/ C.J. Marsden, L.S. Bartell, J.Chem.Soc, Dalton Trans. 1977,1532. /7/ L.S. Bartell. S . Doun, C . J . Msnden, J.MoL Struct. 75 (l98l) 271. /8/ Der BMungswinkel HNH im NH3 betrQt 107.3°, derrFNF im NF3 10Zo. Die Abhilngigkeit der Bindungswinkel von der ELktronegativitXt der tiganden wird dlslattiert be1 /9/, S . 45 ff.

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Aktivierung von Steroidsystemen zu alkylierenden Agenzien / Activation of Steroid Systems to Alkylating Agents

Cited by 5 publications

References 8 publications

Lichtinduzierte Aktivierung von 7‐Dehydrocholesterin

Lichtinduzierte Aktivierung von 7‐Dehydrocholesterin

Light‐Induced Activation of 7‐Dehydrocholesterol

Lichtinduzierte Aktivierung von 7-Dehydrocholesterin

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