Facile, metal promoted, oxidation of eta(4)-1,3-diphosphacyclobutadiene bywater or methanol: synthesis of [MoCl(CO)(eta(4)-1,3-P2C2Bu2t)(eta(5)-L)] (L = C5H5, C5Me5) and [MoCl(CO){eta(3),lambda(3),lambda(5)-(PC2Bu2PH)-P-t(OR)}(eta(5)-L)] (L = C5H5,R = H, Me)
As. Weller et al., Facile, metal promoted, oxidation of eta(4)-1,3-diphosphacyclobutadiene bywater or methanol: synthesis of [MoCl(CO)(eta(4)-1,3-P2C2Bu2t)(eta(5)-L)] (L = C5H5, C5Me5) and [MoCl(CO){eta(3),lambda(3),lambda(5)-(PC2Bu2PH)-P-t(OR)}(eta(5)-L)] (L = C5H5,R = H, Me), CHEM COMMUN, (21), 1999, pp. 2147-2148
The new complexes [MoCl(CO)(eta(4)-1,3-P2C2Bu2t)(eta(5)-L)] (L = C5H5 1, C5
Me5 2) are reported; facile oxidation of 1 with water or methanol affords a
rare example of a mixed valence phosphaphosphonietinyl in [MoCl(CO){eta(3)
,lambda(3),lambda(5)-PC2Bu2t- PH(OR)}(eta(5)-C5H5)] (R = H, Me), which has
also been structurally characterised for R=H.