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'Organometallic P S C h elate Ligand' in keywords Facet   Publication Year 1993  [X]
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1993[X]
1Author    Karlheinz Sünkel, Adrian Blum, Barbara WagnerRequires cookie*
 Title    Koordinationschemie perhalogenierter Cyclopentadiene und Alkine, XI [ 1 ]  
 Abstract    Darstellung einiger Cymantrenyl-mono-und bis-thioether mit einer weiteren funktionellen Gruppe am Cyclopentadienylring. Molekülstruktur von [C5Cl2(SM e)2(PPh2)lM n(CO)3 C oordination Chemistry of Perhalogenated Cyclopentadienes and Alkynes, XI [1] Synthesis of Some Cymantrene Mono-and Bis-Thioethers with One Additional Functional G roup on the Cyclopentadienyl Ring. M olecular Structure of [C5Cl2(SMe)2(PPh2)]Mn(CO)3 The reaction o f [C5Cl4(SM e)]M n(CO)3 (la) with «-butyllithium and the electrophiles SiM e3Cl, C 0 2, or PPh,Cl regiospecifically yields the chiral 1,3-disubstituted functional cym an­ trene thioethers [C5Cl3(SM e)R]M n(CO)3 (R = SiM e3 (2), COOLi (3a), PPh2 (4)). 3 a can be protonated to give the corresponding carboxylic acid (3 b), which in turn can be transformed to the acid chloride [C5Cl3(SM e)(COCl)]M n(CO)3 (3c). 3c reacts with N a N 3 to yield after work-up the urea derivative O C [[N H -C 5Cl3(SM e)]M n(CO)3]2 (3d). U sing the cymantrene bis-thioethers [C5Cl3(SR)2]M n(CO)3 (R = Me, 5a, Ph, 5b) as starting materials, the carboxyl de­ rivatives [C5Cl2(SM e)2(COR)]M n(CO)3 (R = OLi, 6a, OH, 6b, Cl, 6 c) and the potential organometallic S,P-chelate ligands [C5Cl2(SR)2(PPh2)]M n(CO)3 (R = Me, 7 a , Ph, 7b) can be obtained. The crystal structure determination o f 7a (C " H 160 3PS-,CLMn, m onoclinic, P 2,/c, a = 18.714(6) A, b = 9.506(3) A, c = 14.475(3) A, ß = 109.18(2)°, V = 2432.1(12) A \ Z = 4) shows an orientation o f the neighbouring PPh2-and SMe groups, that allows chelation o f an additional metal fragment. 
  Reference    Z. Naturforsch. 48b, 583—5 (1993); eingegangen am 16. N ovem ber 1992 
  Published    1993 
  Keywords    M ultifunctional Cymantrene Thioethers, Organometallic P -S -C h elate Ligand, Chiral Cyclopentadienyl Complexes, Crystal Structure 
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 TEI-XML for    default:Reihe_B/48/ZNB-1993-48b-0583.pdf 
 Identifier    ZNB-1993-48b-0583 
 Volume    48