Unexpected Pd-Catalysed Substitution on the Triquinanedione System - An Approach to centro-Substituted Triquinanes

Synlett

Volumn 1996, Issue 6, 1996, Pages 542-544

  Zuber, Richard ^a   Carlens, Gunter ^a   Haag, Rainer ^a   De Meijere, Armin ^a  

^a UNIVERSITY OF GÖTTINGEN   (Germany)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0002578343     PISSN: 09365214     EISSN: None     Source Type: Journal    
DOI: 10.1055/s-1996-5468     Document Type: Article

References (41)

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22. 2 was added. The mixture was stirred for an additional 24 h at 80°C. After cooling to room temperature the reaction mixture was diluted with 20 ml of acetonitrile, filtered through a bed consisting of Celite, silica gel, sea sand and charcoal. The filtrate was concentrated, and the residue purified by chromatography on silica gel. Correct elemental analysis and/or exact molecular masses (HRMS) were obtained for all new compounds.
23. 5+].
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38. 3): δ = 65.9 [C-1(4,7)], 65.8 (C-10), 132.2 [C-2(3,5,6,8,9)], 124.8, 125.7, 128.6, 149.2. - MS (EI, 70 eV), m/z(%): 206 (100) [M+], 191 (20), 128 (39), 115 (13), 102 (8), 91 (57).
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41. +).