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686344

Sigma-Aldrich

4,4,5,5-Tetramethyl-1,3,2-dioxaphospholane 2-oxide

95%

Synonym(s):

2-Oxo-4,4,5,5-tetramethyl-1,3,2-dioxaphospholane, 4,4,5,5-Tetramethyl-1,3,2-dioxaphospholan-2-ol, HASPO-1, Phosphonic acid pinacol ester, Pinacol phosphonate

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About This Item

Empirical Formula (Hill Notation):
C6H13O3P
CAS Number:
16352-18-4
Molecular Weight:
164.14
MDL number:
MFCD09836231
UNSPSC Code:
12352005
PubChem Substance ID:
329761040

Assay

95%

form

powder

reaction suitability

reaction type: Buchwald-Hartwig Cross Coupling Reaction
reaction type: Heck Reaction
reaction type: Hiyama Coupling
reaction type: Negishi Coupling
reaction type: Sonogashira Coupling
reaction type: Stille Coupling
reaction type: Suzuki-Miyaura Coupling
reagent type: ligand

mp

99-106 °C

functional group

phosphine

SMILES string

CC1(C)O[PH](=O)OC1(C)C

InChI

1S/C6H13O3P/c1-5(2)6(3,4)9-10(7)8-5/h10H,1-4H3

InChI key

QPONEGYFSLRCLJ-UHFFFAOYSA-N

Application

  • Preligand in palladium-catalyzed Kumada cross-coupling reactions of aryl tosylates with Grignard reagents
  • Catalyst for reversible chain transfer polymerizations

Reactant for:
  • Synthesis of oxapalladacycle as catalyst for Markovnikov-type addition
  • Preparation of palladium(II) complexes as catalysts for Heck cross-coupling reactions
  • Preparation of palladium catalysts for asymmetric hydrogenation of a-keto phosphonates
  • Hydrophosphorylation of alkenes, dienes and enynes in the presence of rhodium catalysts
Air-stable preligand for Pd-catalyzed Kumada-type cross-couplings.

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H312,H319

Hazard Classifications

Acute Tox. 4 Dermal - Eye Irrit. 2

Storage Class Code

11 - Combustible Solids

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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Lutz Ackermann et al.
Organic letters, 8(16), 3457-3460 (2006-07-28)
[reaction: see text] Air-stable and easily accessible PinP(O)H enables highly efficient palladium-catalyzed Kumada cross-coupling reactions of aryl tosylates. The in situ generated catalyst proved applicable not only to electron-rich and electron-poor carbocyclic tosylates but also to heterocyclic tosylates, such as

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