In:
European Journal of Inorganic Chemistry, Wiley, Vol. 2010, No. 23 ( 2010-08), p. 3615-3627
Abstract:
The reaction of [Fe(η 5 ‐C 5 H 4 PPh 2 )(η 5 ‐C 5 H 4 terpy)] ( 5 ; terpy = 2,2′:6′,2″‐terpyridin‐4′‐yl) with diverse transition‐metal compounds including [PtCl 2 (Et 2 S) 2 ], [Pd(cod)X 2 ], [AuCl(tht)] , [CuBr], [Mo(CO) 4 (nbd)], and [{RhCl(cod)} 2 ] (X = Cl, Br; tht = tetrahydrothiophene; nbd = norbornadiene; cod = cyclooctadiene) to afford heterobi‐ and trimetallic complexes and a coordination polymer is reported. The following compounds were prepared: [Fe(η 5 ‐C 5 H 4 PPh 2 {PtCl 2 (SEt 2 )})(η 5 ‐C 5 H 4 terpy)] ( 7 ), trans ‐[PtCl 2 {(Ph 2 P‐η 5 ‐C 5 H 4 )(η 5 ‐C 5 H 4 terpy)Fe} 2 ] ( 9 ), [Fe(η 5 ‐C 5 H 4 PPh 2 PdCl 2 )(η 5 ‐C 5 H 4 terpy)] ( 12 ), [Fe{η 5 ‐C 5 H 4 PPh 2 (Cl 3 Pd – )}(η 5 ‐C 5 H 4 terpy{(dmso) 2 ClNi + })] ( 14 ), trans ‐[PdX 2 {(Ph 2 P‐η 5 ‐C 5 H 4 )(η 5 ‐C 5 H 4 terpy)Fe} 2 ] ( 16a , X = Cl; 16b , X = Br), [Mo(CO) 4 {(η 5 ‐C 5 H 4 PPh 2 )(η 5 ‐C 5 H 4 terpy)Fe} 2 ]( 17 ), [Fe{η 5 ‐C 5 H 4 Ph 2 P(CuBr)}(η 5 ‐C 5 H 4 terpy)] n ( 19 ), [Fe{η 5 ‐C 5 H 4 Ph 2 P(AuCl)}(η 5 ‐C 5 H 4 terpy)] ( 22 ), [Fe(η 5 ‐C 5 H 4 Ph 2 P{Rh(cod)Cl})(η 5 ‐C 5 H 4 terpy)] ( 23 ), [Ru({η 5 ‐C 5 H 4 Ph 2 P(AuCl)}(η 5 ‐C 5 H 4 terpy)Fe) 2 ]Cl 2 ( 25 ), and [Fe{η 5 ‐C 5 H 4 PPh 2 (PdCl 2 )}{η 5 ‐C 5 H 4 ‐CH=CHC(O)(py)}] ( 26 ). The molecular structures of 5 , 9 , 12 , 14 , 16b , 22 , and 26 in the solid state are reported. They show typical features of related phosphanylferrocenes and terpyridylferrocenes. Characteristic of 12 is a C–H activation as a result of the close distance of palladium to the terpyridyl moiety. Complexes 12 , 26 , and [PdCl 2 (dppf)] [dppf = 1,1′‐bis(diphenylphosphanyl)ferrocene] , for comparison, were used in preliminary studies as catalysts in the carbon–carbon coupling of iodobenzene with tert ‐butyl acrylate to give ( E )‐ tert ‐butyl cinnamate. The conversion amounts to 80 % with a turnover number of 160 and turnover frequency of 48 h –1 .
Type of Medium:
Online Resource
ISSN:
1434-1948
,
1099-0682
DOI:
10.1002/ejic.v2010:23
DOI:
10.1002/ejic.201000365
Language:
English
Publisher:
Wiley
Publication Date:
2010
detail.hit.zdb_id:
1475009-0
