Réduction de (+)-3-[di(alkylsulfanyl)méthylène]bornan-2-ones. Formation de complexes zinciques chiraux. Structure cristalline et dichroïsme circulaire

Lamazouere, AM.;Sotiropoulos, J.;Dupont, L.;Germain, Gabriel
(1997) Zeitschrift fuer Kristallographie : international journal for structural, physical, and chemical aspects of crystalline materials — Vol. 212, n° 8, p. 605-613 (1997)

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  • Lamazouere, AM.
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  • Sotiropoulos, J.
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  • Dupont, L.
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  • Germain, GabrielUCLouvain
    Author
Abstract
According to the structure of the reacting compound, two different splits occur, when reduction of a 3-[di(alkylsulfanyl)methylene] camphor is performed with zinc and acetic acid, giving either 3-(monoalkylsulfanylmethylene)-2-bornanones or tetrahedral zinc complexes of an intermediary 3-(thioalkylsulfanylmethylene)-2-bornanone. Circular dichroism shows exciton interaction between the two conjugated systems. Molecular structure of one of these complexes was carried out by single crystal X-ray diffraction methods. Crystals of C36H42O2S4Zn belong to space group P1 with a = 10.312(1) Angstrom, b = 11.308(2) Angstrom and c = 16.286(2) Angstrom, c = 16.286(10)degrees, beta = 106.553(11)degrees, gamma = 106.247(10)degrees, Z = 2, T = 293 K. The final R is 0.082 for 5048 unique reflections. The cohesion of the crystal is the result of van der Waals interactions.
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Lamazouere, AM., Sotiropoulos, J., Dupont, L., & Germain, G. (1997). Réduction de (+)-3-[di(alkylsulfanyl)méthylène]bornan-2-ones. Formation de complexes zinciques chiraux. Structure cristalline et dichroïsme circulaire. Zeitschrift fuer Kristallographie : international journal for structural, physical, and chemical aspects of crystalline materials, 212(8), 605-613. https://doi.org/10.1524/zkri.1997.212.8.605 (Original work published 1997)