A new Co(0) complex mediated synthesis of C-glycoside analogues

Tetrahedron Asymmetry

Volumn 14, Issue 17, 2003, Pages 2521-2528

  Orsini, Fulvia ^a   Di Teodoro, Emanuela ^a  

^a Dipto di Chim Organ e Industriale   (Italy)

Author keywords

[No Author keywords available]

Indexed keywords

ACETIC ACID DERIVATIVE; BORON TRIFLUORIDE; COBALT COMPLEX; GLYCOSIDE; LACTONE DERIVATIVE; MAGNESIUM DERIVATIVE; SILANE DERIVATIVE;

ARTICLE; COMPLEX FORMATION; HYDROXYLATION; PHARMACOPHORE; PRIORITY JOURNAL; REFORMATSKY REACTION; STOICHIOMETRY;

EID: 0041830971     PISSN: 09574166     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0957-4166(03)00533-0     Document Type: Article

References (34)

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32. Magnesium was activated by adding a few drops of 1,2-dichloroethane to metal turnings (0.5 g) in tetrahydrofuran (3 mL) so that a vigorous reaction ensued. After a few minutes the mixture was ice-cooled, the solvent was removed and the magnesium was washed three times with tetrahydrofuran (2 mL each time).
33. The solution can also be warmed with an external bath at ca. 50°C to speed the reduction of Co(II) to Co(0). Warming may be useful when triphenylphosphine is used instead of trimethylphosphine.
34. Magnesium metal is used in excess and can be recycled after use.