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419184

Sigma-Aldrich

Triphenylphosphine diiodide

technical grade, 90%

Synonym(s):

Diiodotriphenylphosphorane

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About This Item

Linear Formula:
(C6H5)3PI2
CAS Number:
Molecular Weight:
516.09
Beilstein:
2740417
MDL number:
UNSPSC Code:
12352101
PubChem Substance ID:
NACRES:
NA.06

grade

technical grade

Quality Level

Assay

90%

form

solid

mp

210-220 °C (lit.)

SMILES string

IP(I)(c1ccccc1)(c2ccccc2)c3ccccc3

InChI

1S/C18H15I2P/c19-21(20,16-10-4-1-5-11-16,17-12-6-2-7-13-17)18-14-8-3-9-15-18/h1-15H

InChI key

NSWZEXJQHIXCFL-UHFFFAOYSA-N

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Application

Triphenylphosphine diiodide (Ph3P. I2) can be used as a reagent:
  • To facilitate the conversion of alcohol, thiol, and enol functional groups into alkyl iodides via formation of alkoxyphosphonium iodide.
  • To prepare β-iodo-α,β-unsaturated ketones from cyclic β-diketones in the presence of triethyl amine.
  • In the synthesis of alkyl nitrates from alcohols.
  • In the Beckmann rearrangement reaction to synthesize lactams from cycloalkanone oxime.
  • For the preparation of aromatic and aliphatic carboxylic acid esters in the presence of N,N-dimethylaminopyridine.

Ph3P. I2 can also be used to reduce graphene oxide for the production of graphene nanosheets under mild and environmentally friendly conditions.

Pictograms

Health hazardCorrosion

Signal Word

Danger

Hazard Statements

Hazard Classifications

Eye Dam. 1 - Repr. 2 - Resp. Sens. 1 - Skin Corr. 1B - Skin Sens. 1

Storage Class Code

8A - Combustible corrosive hazardous materials

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

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Triphenylphosphine-Iodine
Dormoy J-R
Encyclopedia of Reagents for Organic Synthesis, Second Edition (2001)
New approach for the reduction of graphene oxide with triphenylphosphine dihalide
Shin H-S et al.
Royal Society of Chemistry Advances, 6(23), 18809-18813 (2016)

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