6533b862fe1ef96bd12c7672

RESEARCH PRODUCT

Trapping Rare and Elusive Phosphinidene Chalcogenides

Heikki M. TuononenPaul D. BoylePaul J. RagognaJuuso ValjusTaylor E. PritchardCameron M. E. Graham

subject

chemistry.chemical_classificationSulfide010405 organic chemistryGeneral MedicineGeneral Chemistry010402 general chemistryPhotochemistry01 natural sciencesCatalysisCycloaddition0104 chemical scienceschemistry.chemical_compoundMonomerchemistryPhosphinideneOxidation stateSelenidephosphinidenesReactivity (chemistry)ta116Carbene

description

Four-membered rings with a P2Ch2 core (Ch=S, Se) and phosphorus in the +3 oxidation state have been synthesized. The utility of these rings as a source of monomeric phosphinidene chalcogenides was probed by the addition of an N-heterocyclic carbene, resulting in a base-stabilized phosphinidene sulfide. Similarly, persistence of the phosphinidene selenide in solution was shown through cycloaddition chemistry with 2,3-dimethylbutadiene at elevated temperatures. The observed reactivity was explained by detailed computational work that established the conditions upon which the P2Ch2 rings can liberate phosphinidene chalcogenides. peerReviewed

https://doi.org/10.1002/anie.201611196