Skip to Content
Merck
CN

420670

Ethyl 3-oxo-4-(triphenylphosphoranylidene)butyrate

97%

Synonym(s):

3-Oxo-4-(triphenylphosphoranylidene)butanoic acid ethyl ester, 4-(Triphenylphosphoranylidene)acetoacetic acid ethyl ester, [3-(Ethoxycarbonyl)-2-oxopropylidene]triphenylphosphorane

Sign In to View Organizational & Contract Pricing.

Select a Size

Change View

About This Item

Linear Formula:
(C6H5)3P=CHCOCH2CO2C2H5
CAS Number:
Molecular Weight:
390.41
NACRES:
NA.22
PubChem Substance ID:
UNSPSC Code:
12352108
MDL number:
Assay:
97%
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist


assay

97%

reaction suitability

reaction type: C-C Bond Formation

functional group

ester, ketone, phosphine

SMILES string

CCOC(=O)CC(=O)C=P(c1ccccc1)(c2ccccc2)c3ccccc3

InChI

1S/C24H23O3P/c1-2-27-24(26)18-20(25)19-28(21-12-6-3-7-13-21,22-14-8-4-9-15-22)23-16-10-5-11-17-23/h3-17,19H,2,18H2,1H3

InChI key

QYXSFVCJCUXGJH-UHFFFAOYSA-N

Application

Can be coupled with glyoxals in a one-step route to 4-hydroxycyclopentanones. Also used to prepare 2H-pyran-2-ones from oxazolones.
Reactant for stereoselective synthesis of:
  • Polysubstituted cyclopentanones via double Michael addition reactions
  • Hydroindanes via asymmetric quadruple aminocatalytic three-component domino condensation and spirocyclization
  • Oxocyclohexenecarboxylates by cyclocondensation

Reactant for preparation of:
  • γ-(Dioxobutylidene)butenolides
  • Chain conjugated 2H-pyran-5-carboxylates
  • 2-Substituted pyridoacridines with antitumor activity by means of thermolysis


Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)



Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library



Synthesis, 453-453 (1992)
Tetrahedron Letters, 34, 4837-4837 (1993)



Global Trade Item Number

SKUGTIN
420670-5G04061833314197