Date published: 2026-3-6

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Tri(o-tolyl)phosphine (CAS 6163-58-2)

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Alternate Names:
P(o-tol)3; Tris(o-tolyl)phosphine
CAS Number:
6163-58-2
Molecular Weight:
304.37
Molecular Formula:
C21H21P
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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Tri(o-tolyl)phosphine (TOTP), an organophosphorus compound, is highly esteemed in the realm of scientific research for its multifaceted role as a versatile ligand, particularly in the ruthenium-catalyzed direct amination of alcohols. This compound′s unique chemical framework enables it to facilitate a broad spectrum of applications, from catalyzing critical organic reactions to participating in the synthesis of complex organometallic compounds and aiding in the development of advanced polymers and pesticides. Its utility extends into the realm of catalysis, where Tri(o-tolyl)phosphine exhibits its prowess by acting as a Lewis acid. This functionality allows it to form sophisticated complexes with Lewis bases, which are instrumental in catalyzing a wide array of organic transformations. The interaction between Tri(o-tolyl)phosphine and other molecules in these reactions is crucial, as it directly influences the efficiency and specificity of the catalytic process. Despite the complexity of its action, the underlying mechanism is believed to involve the formation of these complexes, which serve as the driving force behind its catalytic capabilities. Through these interactions, Tri(o-tolyl)phosphine has become a cornerstone in the field of organometallic chemistry, contributing significantly to the advancement of both polymer science and the synthesis of pesticides, underscoring its pivotal role in pushing the boundaries of scientific research.


Tri(o-tolyl)phosphine (CAS 6163-58-2) References

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  7. Photoinduced Hydrophosphination of Terminal Alkynes with Tri(o-tolyl)phosphine: Synthesis of Alkenylphosphonium Salts.  |  Ikeshita, D., et al. 2022. Org Lett. 24: 2504-2508. PMID: 35343705
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Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

Tri(o-tolyl)phosphine, 1 g

sc-258281
1 g
$21.00