http://www.cnr.it/ontology/cnr/individuo/prodotto/ID182701
Synthesis and coordination of the bifunctionalized ylides Ph P(CH ) (Ph) P@CHCOOMe (n = 1, 2) and ketenylidene Ph2P(CH2)2(Ph)2P@C@C@O to Pd and Pt complexes (Articolo in rivista)
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- Synthesis and coordination of the bifunctionalized ylides Ph P(CH ) (Ph) P@CHCOOMe (n = 1, 2) and ketenylidene Ph2P(CH2)2(Ph)2P@C@C@O to Pd and Pt complexes (Articolo in rivista) (literal)
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- 2008-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1016/j.ica.2007.10.055 (literal)
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Silvia Mazzega Sbovata; Augusto Tassan; Giacomo Facchin (2008)
Synthesis and coordination of the bifunctionalized ylides Ph P(CH ) (Ph) P@CHCOOMe (n = 1, 2) and ketenylidene Ph2P(CH2)2(Ph)2P@C@C@O to Pd and Pt complexes
in Inorganica Chimica Acta (Testo stamp.); Elsevier BV, Amsterdam (Paesi Bassi)
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- Silvia Mazzega Sbovata; Augusto Tassan; Giacomo Facchin (literal)
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- http://www.sciencedirect.com/science/article/pii/S0020169307007621 (literal)
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- 1-2 : Dipartimento dei Processi Chimici dell'Ingegneria, Università di Padova, Via F. Marzolo, 9, I-35131 Padova, Italy /
3 : Istituto di Scienze e Tecnologie Molecolari, ISTM-CNR, Dipartimento dei Processi Chimici dell'Ingegneria, Via F. Marzolo, 9, I-35131 Padova, Italy (literal)
- Titolo
- Synthesis and coordination of the bifunctionalized ylides Ph P(CH ) (Ph) P@CHCOOMe (n = 1, 2) and ketenylidene Ph2P(CH2)2(Ph)2P@C@C@O to Pd and Pt complexes (literal)
- Abstract
- In this paper it is reported the synthesis of the phosphonium salts [Ph2P(CH2)n(Ph)2PCH2COOMe]Br (n = 1 (1), 2 (2)) and [Ph2P(CH2COOMe)(CH2)n(Ph)2PCH2COOMe]Br2 (n = 3 (3)) derived from the reactions of the diphosphines dppm, dppe and dppp with methyl bromoacetate. By reaction of the monophosphonium salt of dppm and dppe with the strong base Na[N(SiMe3)2] the corresponding carbonyl stabilized ylides Ph2P(CH2)n(Ph)2P{double bond, long}CHCOOMe (n = 1 (4), 2 (5)) were obtained. The Ph2P(CH2)2(Ph)2P{double bond, long}CHCOOMe (5) ylide was reacted with Pd(II) and Pt(II) substrates. From these reactions were isolated exclusively complexes in which the ylide was chelated to the metal through the free phosphine group and the ylidic carbon atom. A further reaction of the Ph2P(CH2)2(Ph)2P{double bond, long}CHCOOMe (5) ylide with 1.5 equiv. of Na[N(SiMe3)2] gives the bifunctionalized ketenylidene Ph2P(CH2)2(Ph)2P{double bond, long}C{double bond, long}C{double bond, long}O (6) system. This cumulenic ylide reacts with Pt(II) complexes to form a chelated derivative in which IR and NMR spectra suggest the breaking of the C{double bond, long}C bond of the -C{double bond, long}C{double bond, long}O group. (literal)
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