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441791

Sigma-Aldrich

Tris(2,4-di-tert-butylphenyl) phosphite

Synonym(s):

2,4-Bis(1,1-dimethylethyl)phenol phosphite (3:1), Tri(2,4-di-tert -butylphenyl) phosphite, Tri(2,4-di-t -butylphenyl) phosphite

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About This Item

Linear Formula:
[[(CH3)3C]2C6H3O]3P
CAS Number:
31570-04-4
Molecular Weight:
646.92
EC Number:
250-709-6
MDL number:
MFCD00072706
UNSPSC Code:
12162002
PubChem Substance ID:
24867703
NACRES:
NA.23

mp

181-184 °C (lit.)

SMILES string

CC(C)(C)c1ccc(OP(Oc2ccc(cc2C(C)(C)C)C(C)(C)C)Oc3ccc(cc3C(C)(C)C)C(C)(C)C)c(c1)C(C)(C)C

InChI

1S/C42H63O3P/c1-37(2,3)28-19-22-34(31(25-28)40(10,11)12)43-46(44-35-23-20-29(38(4,5)6)26-32(35)41(13,14)15)45-36-24-21-30(39(7,8)9)27-33(36)42(16,17)18/h19-27H,1-18H3

InChI key

JKIJEFPNVSHHEI-UHFFFAOYSA-N

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General description

Tris(2,4-di-tert-butylphenyl) phosphite is a triaryl based phosphite that can be used in catalysis and metallation. Its characteristic to undergo metallation reaction and provide a cost effective synthetic processes allows it to be useful in biaryl coupling reactions.

Application

It may be used as a chain extender and a processing stabilizer that facilitate the production of stable polymeric materials, which include polylactic acid (PLA), polyolefins, etc.

Storage Class Code

13 - Non Combustible Solids

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Structure effect of phosphite on the chain extension in PLA.
Meng X, et al.
Polymer Degradation and Stability, 120(52), 283-289 (2015)
Orthopalladated triarylphosphite complexes as highly efficient catalysts in the Heck reaction.
Albisson DA
Tetrahedron Letters, 39(52), 9793-9796 (1998)
Orthopalladated triaryl phosphite complexes as highly active catalysts in biaryl coupling reactions.
Albisson DA, et al.
Chemical Communications (Cambridge, England), 19, 2095-2096 (1998)
Study of the high temperature reactions of a hindered aryl phosphite (Hostanox PAR 24) used as a processing stabiliser in polyolefins.
Kriston I, et al.
Polymer Degradation and Stability, 95(9), 1883-1893 (2010)
K Fischer et al.
Chemosphere, 39(4), 611-625 (1999-07-28)
In order to evaluate the environmental risk potential of the polymer-additives octadecyl-3-(3.5-di-t-butyl-4-hydroxyphenyl)propionate (additive 1) and tri-(2.4-di-t-butylphenyl)phosphite (additive 2) we have studied the degradation of the 14C-labelled single components and their release from a polypropylene matrix in abiotic and biotic test
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