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79408

Sigma-Aldrich

Phosphazene base P1-t-Bu

≥97.0% (GC)

Synonym(s):

tert-Butylimino-tris(dimethylamino)phosphorane, N′-tert-Butyl-N,N,N′,N′,N″,N″-hexamethylphosphorimidic triamide

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About This Item

Empirical Formula (Hill Notation):
C10H27N4P
CAS Number:
81675-81-2
Molecular Weight:
234.32
Beilstein:
4178783
MDL number:
MFCD00145111
UNSPSC Code:
12352001
PubChem Substance ID:
57652790
NACRES:
NA.22

Assay

≥97.0% (GC)

form

liquid

SMILES string

CN(C)P(N(C)C)(N(C)C)=NC(C)(C)C

InChI

1S/C10H27N4P/c1-10(2,3)11-15(12(4)5,13(6)7)14(8)9/h1-9H3

InChI key

YRNOSHBJMBLOSL-UHFFFAOYSA-N

Application

Phosphazene Bases: a Family of Extremely Strong, Non-Ionic, Non-Charged Nitrogen–Bases

Other Notes

Sterically hindered, neutral nitrogen base with similar basicity as BEMP (Cat. No. 20025); Base for dehydrating carbamate anions to isocyanates with POCl3 or P4O10

Pictograms

Health hazardCorrosion
GHS08,GHS05

Signal Word

Danger

Hazard Statements

H314,H340,H350

Hazard Classifications

Carc. 1B - Eye Dam. 1 - Muta. 1B - Skin Corr. 1B

Storage Class Code

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

WGK

WGK 3

Flash Point(F)

235.4 °F - closed cup

Flash Point(C)

113 °C - closed cup

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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T.E. Waldman et al.
Journal of the Chemical Society. Chemical Communications, 957-957 (1994)
R. Schwesinger et al
Angewandte Chemie (International Edition in English), 105, 1420-1420 (1994)
Lan-Fang Hu et al.
Molecules (Basel, Switzerland), 25(2) (2020-01-16)
The copolymerization of biorenewable succinic anhydride (SA) with propylene oxide (PO) is a promising way to synthesize biodegradable aliphatic polyesters. However, the catalytic systems for this reaction still deserve to be explored because the catalytic activity of the reported catalysts

Articles

Phosphazene Bases

Phosphazene base reagents are available as monomeric (P1 and BEMP), dimeric (P2), and tetrameric (P4) bases with different side chains to control their sterical hindrance.

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