Rhenium carbonyl complexes with bis(diphenyl phosphino)methane. X-ray crystal structure of [ReBr(CO)2(Ph2PCH2PPh2)(Ph2PCH2P′Ph2)·0.43[ReBr(CO)2(Ph2PCH2PPh2)(Ph2PCH2P(O)Ph2)]
1990; Elsevier BV; Volume: 178; Issue: 1 Linguagem: Inglês
10.1016/s0020-1693(00)88141-4
ISSN1873-3255
AutoresGabino A. Carriedo, María L. López-Rodrı́guez, Santiago García‐Granda, Ángel Aguirre,
Tópico(s)Asymmetric Hydrogenation and Catalysis
ResumoThe reaction of fac-[ReBr(CO)3(dppm)] (dppm=Ph2PCH2PPh2) with dppm in refluxing xylene gave the dicarbonyl cis-mer-[ReBr(CO)2(dppm-P)(dppm-P,P′)] (Id) in which one dppm is monodentated. This compound reacted with oxygen in xylene at room temperature to give first the P-oxide derivative cis-mer-[ReBr(CO)2(dppm-P)(dppm-P,PO)] (II), that subsequently decomposes with formation of Ph2P(O)CH2P(O)PPh2. The X-ray structure of I has been determined in a crystal containing 30% of II. The reaction of I with TlPF6 in CH2Cl2 gave the cationic cis-[Re(CO)2(dppm-P)2]PF6 (III).
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