Regio- and Stereoselective Ring-Opening Reactions of Chiral Substituted Spiro[2.4]hepta-4,6-dienes: A New, Simple, and Versatile Approach to the Synthesis of Optically Active Bidentate Cyclopentadienyl−Phosphine Ligands. X-ray Crystal Structure of (<i>S</i>)-[Rh(η<sup>2</sup>-C<sub>2</sub>H<sub>4</sub>)(η<sup>5</sup>-C<sub>5</sub>H<sub>4</sub>CH<sub>2</sub>CHPhPPh<sub>2</sub>-κ<i>P</i>)] - Concepedia

Concepedia

Publication | Closed Access

Regio- and Stereoselective Ring-Opening Reactions of Chiral Substituted Spiro[2.4]hepta-4,6-dienes: A New, Simple, and Versatile Approach to the Synthesis of Optically Active Bidentate Cyclopentadienyl−Phosphine Ligands. X-ray Crystal Structure of (<i>S</i>)-[Rh(η<sup>2</sup>-C<sub>2</sub>H<sub>4</sub>)(η<sup>5</sup>-C<sub>5</sub>H<sub>4</sub>CH<sub>2</sub>CHPhPPh<sub>2</sub>-κ<i>P</i>)]

25

Citations

34

References

2000

Year

Santiago Ciruelos, Ulli Englert, Albrecht Salzer, Carsten Bolm, Astrid Maischak

Organometallics

Chiral Substituted SpiroStereoselective Ring-opening ReactionsEngineeringCoordination ComplexLipph2 ProceedsOrganic ChemistryX-ray Crystal StructureFull Regio-Organometallic CatalysisChemistryMolecular ComplexInorganic SynthesisEnantioselective SynthesisBiomolecular EngineeringRing-opening Reaction

Abstract

The ring-opening reaction of (S)-1-phenylspiro[2,4]hepta-4,6-diene with LiPPh2 proceeds with full regio- and stereoselectivity, taking place at phenyl-substituted carbon and with complete inversion of the configuration at the stereogenic center, yielding (S)-[Li(C5H4CH2CHPhPPh2)]. Optically active complexes of rhenium, rhodium, zirconium, and iron with this new chiral bidentate ligand have been prepared; additionally, the X-ray crystal structure of (S)-[Rh(η2-C2H4)(η5-C5H4CH2CHPhPPh2-κP)] is reported.

References

	Year	Citations

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