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761060

Sigma-Aldrich

(Tributylphosphoranylidene)acetonitrile

97%

Synonym(s):

(Cyanomethylene)tributylphosphorane

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About This Item

Empirical Formula (Hill Notation):
C14H28NP
CAS Number:
157141-27-0
Molecular Weight:
241.35
UNSPSC Code:
12352000
NACRES:
NA.22

Quality Level

100

Assay

97%

form

liquid

refractive index

n20/D 1.500 (lit.)

density

0.921 g/mL at 25 °C

storage temp.

2-8°C

InChI

1S/C14H28NP/c1-4-7-11-16(14-10-15,12-8-5-2)13-9-6-3/h14H,4-9,11-13H2,1-3H3

InChI key

OZMLUMPWPFZWTP-UHFFFAOYSA-N

General description

(Tributylphosphoranylidene)acetonitrile or cyanomethylenetrimethylphosphorane (Bu3P=CHCN) is a Wittig reagent employed in the transformation of the carbonyl compounds, including aldehydes, esters, and lactones into the corresponding unsaturated nitriles.

Application

(Tributylphosphoranylidene)acetonitrile can be utilized as a reagent in the:
  • Stereoselective synthesis of skytanthine and other O- and N-containing heterocycles by Mitsunobu intramolecular cycloalkylation.
  • Wittig olefination of esters, lactones, N-Boc lactam, and cyclic imide to corresponding Wittig products.

Storage Class Code

10 - Combustible liquids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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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Trimethylphosphine 97%

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323322

Trimethylphosphine

(Tributylphosphoranylidene) acetonitrile
Wyatt, Peter B
Encyclopedia of Reagents for Organic Synthesis, Second Edition (2001)
Formation of heterocycles by the Mitsunobu reaction. Stereoselective synthesis of (+)-α-skytanthine
Tsunoda T, et al.
Tetrahedron Letters, 37(14), 2463-2466 (1996)
Cyanomethylenetrimethylphosphorane, a powerful reagent for the Wittig olefination of esters, lactones and imides
Tsunoda T, et al.
Tetrahedron Letters, 41(2), 235-237 (2000)

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