Diethyl ethynylphosphonate

Name: Diethyl ethynylphosphonate
Brand: ChemScene
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CAS No. 4851-51-8
Cat. No. CS-0615476
Purity≥95%
MDL No.None

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Type	HazMat Fee
Excepted Quantity	$0.00
FedEx Limited Quantities Ground	$0.00
Hazmat Ground shipping	$50.00+
Inaccessible (Haz class 6.1 or 9), Domestic	$68.00+
Accessible (Haz class 3, 4, 5 or 8), Domestic	$158.00+
Inaccessible (Haz class 6.1 or 9), International	$108.00+
Accessible (Haz class 3, 4, 5 or 8), International	$238.00+

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Structure of 4851-51-8

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Description

Diethyl ethynylphosphonate serves as a pivotal building block in synthetic organic chemistry, enabling efficient access to alkynylphosphonate derivatives. This reagent features a terminal alkyne linked directly to a phosphonate group, offering high reactivity in transition-metal-catalyzed coupling reactions and facilitating the construction of complex phosphorus-containing architectures under mild conditions.

Application

Diethyl ethynylphosphonate serves as a versatile building block in synthetic organic chemistry, enabling efficient access to alkynylated phosphonate motifs. It functions as a key reagent in Sonogashira coupling reactions and acts as a precursor for α-alkynylphosphonic acids. The molecule exhibits good bench stability, mild handling requirements, and compatibility with various functional groups, facilitating its use in complex molecule synthesis and heterocycle construction.

General Information

CAS No. 4851-51-8
Cat. No. CS-0615476
Purity ≥95%
MDL No. None
Storage 4°C, stored under nitrogen
Shipping Room temperature in continental US; may vary elsewhere.
Molecular Formula C₆H₁₁O₃P
Molecular Weight 162.12
Synonym(s) None
SMILES O=P(OCC)(C#C)OCC

Computational Chemistry Data

TPSA 35.53
LogP 1.8432
H_Acceptors 3
H_Donors 0
Rotatable_Bonds 4

Safety Information

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GHS Pictogram :	GHS No : GHS07
Signal Word : Warning	UN#: N/A
Class : N/A	Packing Group : N/A
Hazard Statements : H302-H315-H319-H335
Precautionary Statements : P261-P264-P270-P271-P280-P302+P352-P304+P340-P330-P362+P364-P405-P501

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Other Classifications

Building Blocks Skeleton Fatty chain compounds

General Reagents Wittig Reagents

Key Words

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Diethyl ethynylphosphonate

CAS No. 4851-51-8

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