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157929 Sigma-Aldrich

Methyl (triphenylphosphoranylidene)acetate

98%

Synonym: (Carbomethoxymethylene)triphenylphosphorane, (Methoxycarbonylmethylene)triphenylphosphorane

  • CAS Number 2605-67-6

  • Linear Formula (C6H5)3P=CHCO2CH3

  • Molecular Weight 334.35

  •  Beilstein/REAXYS Number 618430

  •  EC Number 220-018-4

  •  MDL number MFCD00008455

  •  PubChem Substance ID 24849709

  •  NACRES NA.22

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Properties

Related Categories C-C Bond Formation, Chemical Synthesis, Olefination, Synthetic Reagents, Wittig Reagents More...
Quality Level   200
assay   98%
reaction suitability   reaction type: C-C Bond Formation
mp   168-172 °C (lit.)
SMILES string   COC(=O)C=P(c1ccccc1)(c2ccccc2)c3ccccc3
InChI   1S/C21H19O2P/c1-23-21(22)17-24(18-11-5-2-6-12-18,19-13-7-3-8-14-19)20-15-9-4-10-16-20/h2-17H,1H3
InChI key   NTNUDYROPUKXNA-UHFFFAOYSA-N

Description

Packaging

5, 25, 100 g in poly bottle

Application

Wittig reagent for the two-carbon homologation of aldehydes to α,β-unsaturated esters. Also used in an efficient synthesis of pyrazoles via reaction with methyl diazoacetate in the presence of triethylamine.

Safety & Documentation

Safety Information

Personal Protective Equipment 
RIDADR 
NONH for all modes of transport
WGK Germany 
WGK 3
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable

Documents

Certificate of Analysis (COA)

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Certificate of Origin (COO)

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Protocols & Articles
Peer-Reviewed Papers
15

References

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