Synthesis of ferrocenylbenzenes via Cp* RuCl-catalyzed partially intramolecular cyclotrimerization of ferrocenylalkynes

Letters in Organic Chemistry

Volumn 2, Issue 3, 2005, Pages 219-221

  Yamamoto, Yoshihiko ^a   Kataoka, Hisashi ^a   Kinpara, Keisuke ^a   Nishiyama, Hisao ^a   Itoh, Kenji ^a  

^a NAGOYA UNIVERSITY   (Japan)

Author keywords

Cyclotrimerization; Diyne; Ferrocenylalkyne; Ferrocenylbenzene; Ruthenium catalysis

Indexed keywords

EID: 33645549133     PISSN: 15701786     EISSN: None     Source Type: Journal    
DOI: 10.2174/1570178053765258     Document Type: Review

References (21)

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16. Typical experimental procedure. Synthesis of 4a: To a solution of Cp*RuC(cod) (3.8 mg, 0.01 mmol) and ethynylferrocene 3a (168 mg, 0.8 mmol) in dry degassed DCE (1 mL) was added a solution of the diyne 2a (36 mg, 0.2 mmol) in DCE (3 mL) over 15 min via a syringe at room temperature. The reaction mixture was stirred at ambient temperature for 1 h. After concentration in vacuo, the residue was purified by silica gel column flush chromatography (eluent, hexane:AcOEt = 48:1) to afford 4a (61 mg, 73%) as orange solids.
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