SYNTHESIS AND COORDINATION PROPERTIES OF CHIRAL BIDENTATE P,O-DONOR LIGANDS

Reaction of the chiral compound (S)-(+)-BrCH2CHMeCH2OH with Ph2PK in the presence of lithium diisopropylamide (LDA) and BH3/THF yields the monophosphine (S)-Ph2P(BH3)CH2CHMeCH 2OH(1). The reaction of 1 with ClOSO2Me/Et3N or NaH/MeI gives rise to the formation of the general compound (S)-Ph2P(BH3)CH2...

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Autores principales: DIAZ,OSCAR, CONTRERAS,RAUL, VALDERRAMA,MAURICIO
Lenguaje:English
Publicado: Sociedad Chilena de Química 2006
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Acceso en línea:http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072006000200008
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spelling oai:scielo:S0717-970720060002000082006-06-30SYNTHESIS AND COORDINATION PROPERTIES OF CHIRAL BIDENTATE P,O-DONOR LIGANDSDIAZ,OSCARCONTRERAS,RAULVALDERRAMA,MAURICIO Iridium chiral ligands chiral phiosphine hemilabile ligands Reaction of the chiral compound (S)-(+)-BrCH2CHMeCH2OH with Ph2PK in the presence of lithium diisopropylamide (LDA) and BH3/THF yields the monophosphine (S)-Ph2P(BH3)CH2CHMeCH 2OH(1). The reaction of 1 with ClOSO2Me/Et3N or NaH/MeI gives rise to the formation of the general compound (S)-Ph2P(BH3)CH2CHMeCH 2OR [Cp*IrCl2(PPh2CH2CHMeCH 2OR-P)], which by treatment with pyrrolidine affords (S)-Ph2PCH2CHMeCH2 OR [R = SO2Me (4), Me (6)]. The monophophines 4, 6 and (S)-PPh2CH2CHMeCH2 OH react with [{Cp*IrCl(µ-Cl)}2] to give the neutral compounds [Cp*IrCl2(PPh2CH2CHMeCH 2OR-P)], where only the compound with R = H (7) was fully characterized. Complex 7 reacts with AgBF4 yielding the cationic complex [Cp*IrCl(PPh2CH2CHMeCH2 OH-P,O)]BF4 (8) in which the ligand acts in its bidentate form. Similar synthetic results were obtained using [{Cp*IrI(µ-I)}2] as starting complex .info:eu-repo/semantics/openAccessSociedad Chilena de QuímicaJournal of the Chilean Chemical Society v.51 n.2 20062006-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072006000200008en10.4067/S0717-97072006000200008
institution Scielo Chile
collection Scielo Chile
language English
topic Iridium
chiral ligands
chiral phiosphine
hemilabile ligands
spellingShingle Iridium
chiral ligands
chiral phiosphine
hemilabile ligands
DIAZ,OSCAR
CONTRERAS,RAUL
VALDERRAMA,MAURICIO
SYNTHESIS AND COORDINATION PROPERTIES OF CHIRAL BIDENTATE P,O-DONOR LIGANDS
description Reaction of the chiral compound (S)-(+)-BrCH2CHMeCH2OH with Ph2PK in the presence of lithium diisopropylamide (LDA) and BH3/THF yields the monophosphine (S)-Ph2P(BH3)CH2CHMeCH 2OH(1). The reaction of 1 with ClOSO2Me/Et3N or NaH/MeI gives rise to the formation of the general compound (S)-Ph2P(BH3)CH2CHMeCH 2OR [Cp*IrCl2(PPh2CH2CHMeCH 2OR-P)], which by treatment with pyrrolidine affords (S)-Ph2PCH2CHMeCH2 OR [R = SO2Me (4), Me (6)]. The monophophines 4, 6 and (S)-PPh2CH2CHMeCH2 OH react with [{Cp*IrCl(µ-Cl)}2] to give the neutral compounds [Cp*IrCl2(PPh2CH2CHMeCH 2OR-P)], where only the compound with R = H (7) was fully characterized. Complex 7 reacts with AgBF4 yielding the cationic complex [Cp*IrCl(PPh2CH2CHMeCH2 OH-P,O)]BF4 (8) in which the ligand acts in its bidentate form. Similar synthetic results were obtained using [{Cp*IrI(µ-I)}2] as starting complex .
author DIAZ,OSCAR
CONTRERAS,RAUL
VALDERRAMA,MAURICIO
author_facet DIAZ,OSCAR
CONTRERAS,RAUL
VALDERRAMA,MAURICIO
author_sort DIAZ,OSCAR
title SYNTHESIS AND COORDINATION PROPERTIES OF CHIRAL BIDENTATE P,O-DONOR LIGANDS
title_short SYNTHESIS AND COORDINATION PROPERTIES OF CHIRAL BIDENTATE P,O-DONOR LIGANDS
title_full SYNTHESIS AND COORDINATION PROPERTIES OF CHIRAL BIDENTATE P,O-DONOR LIGANDS
title_fullStr SYNTHESIS AND COORDINATION PROPERTIES OF CHIRAL BIDENTATE P,O-DONOR LIGANDS
title_full_unstemmed SYNTHESIS AND COORDINATION PROPERTIES OF CHIRAL BIDENTATE P,O-DONOR LIGANDS
title_sort synthesis and coordination properties of chiral bidentate p,o-donor ligands
publisher Sociedad Chilena de Química
publishDate 2006
url http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072006000200008
work_keys_str_mv AT diazoscar synthesisandcoordinationpropertiesofchiralbidentatepodonorligands
AT contrerasraul synthesisandcoordinationpropertiesofchiralbidentatepodonorligands
AT valderramamauricio synthesisandcoordinationpropertiesofchiralbidentatepodonorligands
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