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157929

Methyl (triphenylphosphoranylidene)acetate

Name: Methyl (triphenylphosphoranylidene)acetate
Brand: ALDRICH

98%

Synonym(s):

(Carbomethoxymethylene)triphenylphosphorane, (Methoxycarbonylmethylene)triphenylphosphorane

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About This Item

Linear Formula:

(C₆H₅)₃P=CHCO₂CH₃

CAS Number:

2605-67-6

Molecular Weight:

334.35

Beilstein/REAXYS Number:

618430

MDL number:

MFCD00008455

UNSPSC Code:

12352108

NACRES:

NA.22

PubChem Substance ID:

24849709

EC Number:

220-018-4

Assay:

98%

Form:

powder

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Properties

Quality Segment

200

assay

98%

form

powder

reaction suitability

reaction type: C-C Bond Formation

mp

168-172 °C (lit.)

functional group

ester, phosphine

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

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.

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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