Rhodium Acetate Dimer Immobilized in 1‐Butyl‐3‐methylimidazolium Hexafluorophosphate Ionic Liquid: a Novel and Recyclable Catalytic System for the Cyclopropanation of Alkenes | Zendy

Yadav J. S. | Zendy; Reddy B. V. S. | Zendy; Reddy P. Narayana | Zendy

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Rhodium Acetate Dimer Immobilized in 1‐Butyl‐3‐methylimidazolium Hexafluorophosphate Ionic Liquid: a Novel and Recyclable Catalytic System for the Cyclopropanation of Alkenes

Author(s) -

Yadav J. S.,

Reddy B. V. S.,

Reddy P. Narayana

Publication year - 2004

Publication title -

advanced synthesis and catalysis

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.541

H-Index - 155

eISSN - 1615-4169

pISSN - 1615-4150

DOI - 10.1002/adsc.200303136

Subject(s) - hexafluorophosphate , cyclopropanation , ionic liquid , chemistry , rhodium , catalysis , dimer , organic chemistry , medicinal chemistry

Alkenes undergo smooth cyclopropanation with ethyl diazoacetate using a catalytic amount of rhodium acetate dimer, Rh 2 (OAc) 4 , immobilized in the air‐ and moisture‐stable 1‐butyl‐3‐methylimidazolium hexafluorophosphate ionic liquid, [bmim]PF 6 , to afford cyclopropanecarboxylates in excellent yields with high trans ‐selectivity. The recovery of the catalyst is facilitated by the hydrophobic nature of [bmim]PF 6 . The recovered ionic liquid containing Rh 2 (OAc) 4 can be reused for three to five subsequent runs with only a gradual decrease in activity.

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