6533b85ffe1ef96bd12c1a13

RESEARCH PRODUCT

Cyclopentadiene with two coordinating sites: 1,5-bis(diphenylphosphino) -2,3,4-trimethylcyclopenta-1,3-diene

Bernard GautheronCorinne LegrandSerge NinoreilleRoland Broussier

subject

CyclopentadieneDenticityDieneStereochemistryLigandOrganic ChemistryButanoneBiochemistryMedicinal chemistryInorganic Chemistrychemistry.chemical_compoundChalcogenchemistryMaterials ChemistryChlorodiphenylphosphinePhysical and Theoretical ChemistryPhosphine

description

Abstract The possibility of obtaining the new bidentate 1,2-diphenylphosphinocyclopentadienyl ligand has been studied. 1,5-bis(diphenylphosphino)-2,3,4-trimethylcyclopenta-1,3-diene can be formed from butanone and chlorodiphenylphosphine in eight steps. The results of chemical and spectroscopic studies reveal that a 1.5-sigmatropic migration of the diphenylphosphino group takes place: the 1,2-diphenylphosphino-substituted species are converted into 1.3 species.

https://doi.org/10.1016/s0022-328x(96)06773-3