About: Xantphos

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Xantphos is an organophosphorus compound derived from the heterocycle xanthene. It is used as a bidentate diphosphine ligand and is noteworthy for having a particularly wide bite angle (108°). Such ligands are useful in the hydroformylation of alkenes. Illustrative of its wide bite angle, it forms both cis and trans adducts of platinum(II) chloride. In the latter context, xantphos is classified as a trans-spanning ligand. A related bidentate ligand with a greater bite angle is spanphos.

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dbo:abstract
  • Xantfos (systematický název 4,5-bis(difenylfosfino)dimethylxanten) je organická sloučenina odvozená od heterocyklické sloučeniny . Používá se jako bidentátní ligand při hydroformylaci alkenů. Díky svému velkému úhlu ligand-kov-ligand (108°) může například s chloridem palladnatým vytvářet cis- i trans adukty. Podobným bidentátním ligandem je SPANfos. Připravuje se lithiací 9,9-dimethylxantenu a reakcí vzniklého produktu s chlordifenylfosfinem. (cs)
  • Xantphos is an organophosphorus compound derived from the heterocycle xanthene. It is used as a bidentate diphosphine ligand and is noteworthy for having a particularly wide bite angle (108°). Such ligands are useful in the hydroformylation of alkenes. Illustrative of its wide bite angle, it forms both cis and trans adducts of platinum(II) chloride. In the latter context, xantphos is classified as a trans-spanning ligand. A related bidentate ligand with a greater bite angle is spanphos. The ligand is prepared by double directed lithiation of 9,9-dimethylxanthene with sec-butyllithium followed by treatment with chlorodiphenylphosphine. (en)
  • キサントホス(Xantphos)は、複素環式化合物であるキサンテンから誘導された有機リン化合物である。ジホスフィンのひとつ。キサントホスは二座配位子であり、その広い (bite angle) を特徴として遷移金属触媒上で利用される。キサントホスを含め、bite angle の広い配位子はアルケンのヒドロホルミル化に役立つ。塩化白金(II)に加えるとシス配位とトランス配位の両方の付加体を形成することが、その広い配位挟角の特性を表している。 (ja)
  • Xantfos is een organofosforverbinding die afgeleid is van de heterocyclische verbinding xantheen. Het is een kleurloze vaste stof. (nl)
  • 4,5-双二苯基膦-9,9-二甲基氧杂蒽(Xantphos)是一种由氧杂蒽杂环衍生出的有机磷化合物。4,5-双二苯基膦-9,9-二甲基氧杂蒽为常用的双齿配体,值得注意的是该膦配体具有特别宽的。这种配体常用于烯烃的氢甲酰化反应。 4,5-双二苯基膦-9,9-二甲基氧杂蒽与氯化钯既可形成顺式加合物也和反式加合物,由此可证明其宽泛的咬入角。相比具更大咬入角的一个相关双齿配体为SPANphos。 4,5-双二苯基膦-9,9-二甲基氧杂蒽配体可通过如下方法制备:9,9-二甲基氧杂蒽先进行双重,而后和反应制得。 (zh)
dbo:alternativeName
  • Xantphos (en)
dbo:iupacName
  • (9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(diphenylphosphane) (en)
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  • 13040791 (xsd:integer)
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  • 3469 (xsd:nonNegativeInteger)
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  • 1018181406 (xsd:integer)
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dbp:imagefile
  • Xantphos-based-on-xtal-3D-bs-17.png (en)
  • Xantphos.svg (en)
dbp:imagesize
  • 170 (xsd:integer)
  • 220 (xsd:integer)
dbp:othernames
  • Xantphos (en)
dbp:pin
  • bis (en)
dbp:verifiedfields
  • changed (en)
dbp:verifiedrevid
  • 470633169 (xsd:integer)
dbp:watchedfields
  • changed (en)
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rdfs:comment
  • Xantfos (systematický název 4,5-bis(difenylfosfino)dimethylxanten) je organická sloučenina odvozená od heterocyklické sloučeniny . Používá se jako bidentátní ligand při hydroformylaci alkenů. Díky svému velkému úhlu ligand-kov-ligand (108°) může například s chloridem palladnatým vytvářet cis- i trans adukty. Podobným bidentátním ligandem je SPANfos. Připravuje se lithiací 9,9-dimethylxantenu a reakcí vzniklého produktu s chlordifenylfosfinem. (cs)
  • キサントホス(Xantphos)は、複素環式化合物であるキサンテンから誘導された有機リン化合物である。ジホスフィンのひとつ。キサントホスは二座配位子であり、その広い (bite angle) を特徴として遷移金属触媒上で利用される。キサントホスを含め、bite angle の広い配位子はアルケンのヒドロホルミル化に役立つ。塩化白金(II)に加えるとシス配位とトランス配位の両方の付加体を形成することが、その広い配位挟角の特性を表している。 (ja)
  • Xantfos is een organofosforverbinding die afgeleid is van de heterocyclische verbinding xantheen. Het is een kleurloze vaste stof. (nl)
  • 4,5-双二苯基膦-9,9-二甲基氧杂蒽(Xantphos)是一种由氧杂蒽杂环衍生出的有机磷化合物。4,5-双二苯基膦-9,9-二甲基氧杂蒽为常用的双齿配体,值得注意的是该膦配体具有特别宽的。这种配体常用于烯烃的氢甲酰化反应。 4,5-双二苯基膦-9,9-二甲基氧杂蒽与氯化钯既可形成顺式加合物也和反式加合物,由此可证明其宽泛的咬入角。相比具更大咬入角的一个相关双齿配体为SPANphos。 4,5-双二苯基膦-9,9-二甲基氧杂蒽配体可通过如下方法制备:9,9-二甲基氧杂蒽先进行双重,而后和反应制得。 (zh)
  • Xantphos is an organophosphorus compound derived from the heterocycle xanthene. It is used as a bidentate diphosphine ligand and is noteworthy for having a particularly wide bite angle (108°). Such ligands are useful in the hydroformylation of alkenes. Illustrative of its wide bite angle, it forms both cis and trans adducts of platinum(II) chloride. In the latter context, xantphos is classified as a trans-spanning ligand. A related bidentate ligand with a greater bite angle is spanphos. (en)
rdfs:label
  • Xantfos (cs)
  • キサントホス (ja)
  • Xantfos (nl)
  • Xantphos (en)
  • 4,5-双二苯基膦-9,9-二甲基氧杂蒽 (zh)
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