Skip to Content
Merck
All Photos(2)

Documents

436178

Sigma-Aldrich

1-Ethylpiperidine hypophosphite

95%

Synonym(s):

1-Ethylpiperidinium phosphinate

Sign Into View Organizational & Contract Pricing
All Photos(2)

About This Item

Empirical Formula (Hill Notation):
C7H18NO2P
CAS Number:
145060-63-5
Molecular Weight:
179.20
MDL number:
MFCD00216621
UNSPSC Code:
12352100
PubChem Substance ID:
24867286
NACRES:
NA.22

Assay

95%

form

solid

mp

40-43 °C (lit.)

storage temp.

2-8°C

SMILES string

OPO.CCN1CCCCC1

InChI

1S/C7H15N.H3O2P/c1-2-8-6-4-3-5-7-8;1-3-2/h2-7H2,1H3;1-3H

InChI key

BNCZSWZTYPTERM-UHFFFAOYSA-N

General description

1-Ethylpiperidine hypophosphite promotes the carbon-carbon bond forming radical reactions in both aqueous and organic media. EPHP plays an important role of a good chain carrier during the radical addition of gem-dihalocompounds to electron-deficient olefins. It has been reported as a suitable radical reducing agent for organic halides.

Application

1-Ethylpiperidine hypophosphite (EPHP) may be used in the following studies:
  • As water-soluble chain carrier for the efficient radical cyclization in water for various hydrophobic substrates.
  • In the main radical-cyclisation step for the synthesis of the phytotoxic metabolite alboatrin and its epimer.
  • Preparation of bifunctional pentafluorophenyl/2,4,6-trichlorophenyl sulfonates.
  • Chemoselective radical reduction of the iodine atom in 1-deoxy-1-halo-1-iodo-alditols.
Reagent for:
Synthesis of spiroketals via intramolecular iodoetherification
A facile radical cyclization diverted to a rearrangement-cyclization with base
Radical deoxygenation
Synthesis of allylic H-phosphinates

Pictograms

FlameExclamation mark
GHS02,GHS07

Signal Word

Warning

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Eye Irrit. 2 - Flam. Sol. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

4.1B - Flammable solid hazardous materials

WGK

WGK 3

Flash Point(F)

132.8 °F - closed cup

Flash Point(C)

56 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

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

Visit the Document Library

Hypophosphite mediated carbon-carbon bond formation: A clean approach to radical methodology.
Graham SR, et al.
Tetrahedron Letters, 40(!2), 2415-2416 (1999)
Tributyltin hydride and 1-ethylpiperidine hypophosphite mediated intermolecular radical additions to 2, 4, 6-trichlorophenyl vinyl sulfonate.
Edetanlen-Elliot O, et al.
Tetrahedron Letters, 48(50), 8926-8929 (2007)
Chemoselective 1-ethylpiperidine hypophosphite (EPHP)-mediated intermolecular radical additions of 1-deoxy-1-halo-1-iodo-alditols to electron-deficient olefins.
Francisco CG, et al.
Tetrahedron Letters, 47(51), 9057-9060 (2006)
Hypophosphite mediated carbon-carbon bond formation: total synthesis of epialboatrin and structural revision of alboatrin.
Graham SR, et al.
Journal of the Chemical Society. Perkin Transactions 1, 21, 3071-3073 (1999)
Stereoselective synthesis of trisubstituted tetrahydrofurans by radical cyclisation reaction using a hypophosphite salt. Application to the total synthesis of (?)-dihydrosesamin.
Roy SC, et al.
Tetrahedron, 58(12), 2435-2439 (2002)
View All Related Papers

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service