A Novel Cyclopentadienone and its Ruthenium and Iron Tricarbonyl Complexes.

Autor:	Nährig, Florian, Nunheim, Nelly, Salih, Kifah S. M., Chung, Jae‐Yeon, Gond, Dominik, Sun, Yu, Becker, Sabine, Thiel, Werner R.
Předmět:	RUTHENIUM MOLECULAR structure IRON TRANSFER hydrogenation RUTHENIUM compounds CATALYSTS
Zdroj:	European Journal of Inorganic Chemistry; 12/14/2021, Vol. 2021 Issue 46, p4832-4841, 10p
Abstrakt:	A simple and efficient protocol allows the oxidation of the cyclopentadiene derivative 5H‐dibenzo[e,h]‐dibenzo[3,4 : 6,7]cyclohept[1,2‐a]azulene (CpCH) provide according ketone CpCO. Comparable to the situation found for CpCH, the bending of the four annulated six‐membered rings defines the C2 symmetric molecular structure of CpCO. The cyclopentadienone CpCO readily reacts with [Ru3(CO)12] and [Fe3(CO)12] to generate tricarbonyl complexes of the type [(η4‐CpCO)M(CO)3]. In contrast to [(η4‐CpCO)Ru(CO)3], the tricarbonyliron(0) complex is sensitive to oxygen and moisture. Refluxing [(η4‐CpCO)Ru(CO)3] in isopropanol makes the hydrido‐bridged complex [((η4‐CpCO)2H)Ru2(CO)4H] accessible, an analogue to Shvo's catalyst. Both ruthenium complexes and their ligand CpCO were characterized spectroscopically and by single crystal x‐ray diffraction. The activity of [(η4‐CpCO)Ru(CO)3] was investigated for a series of transfer hydrogenation reactions. [ABSTRACT FROM AUTHOR]
Databáze:	Complementary Index
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