Date published: 2026-3-19

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Wadsworth-Emmons Reagents

Santa Cruz Biotechnology now offers a broad range of Wadsworth-Emmons Reagents for use in various applications. Wadsworth-Emmons reagents are essential tools in organic chemistry, particularly for the synthesis of alkenes through the Wadsworth-Emmons reaction, a modification of the Horner-Wadsworth-Emmons (HWE) olefination. These reagents are phosphonate esters that react with aldehydes or ketones to form trans-alkenes, which are crucial intermediates in the synthesis of complex organic molecules. The reaction is highly valued for its ability to produce alkenes with excellent stereoselectivity, making it indispensable for constructing carbon-carbon double bonds in a controlled and predictable manner. In scientific research, Wadsworth-Emmons reagents are employed to synthesize a wide variety of natural products and polymers, enabling the exploration of new chemical entities and the development of innovative materials. These reagents allow chemists to fine-tune reaction conditions to achieve desired outcomes, thereby facilitating the study of reaction mechanisms and the optimization of synthetic pathways. The availability of high-purity Wadsworth-Emmons reagents from Santa Cruz Biotechnology ensures that researchers can conduct their experiments with confidence, achieving reproducible and reliable results that are critical for advancing scientific knowledge. By providing a comprehensive selection of these reagents, Santa Cruz Biotechnology supports the scientific community in their efforts to explore the vast potential of organic synthesis and develop new methodologies for chemical innovation. View detailed information on our available Wadsworth-Emmons Reagents by clicking on the product name.

Items 11 to 20 of 49 total

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Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

Diethyl methylphosphonate

683-08-9sc-252711
5 g
$50.00
(0)

Diethyl methylphosphonate acts as a potent Wadsworth-Emmons reagent, enabling the synthesis of alkenes via the dephosphonylation process. Its unique structure allows for selective reactivity, where the methylphosphonate moiety can engage in nucleophilic substitution reactions. The steric and electronic properties of the diethyl group influence the reaction kinetics, promoting efficient formation of carbon-carbon bonds. This reagent's ability to stabilize transition states enhances its utility in complex organic transformations.

Bis(2,2,2-trifluoroethyl) methylphosphonate

757-95-9sc-234033
5 g
$128.00
(0)

Bis(2,2,2-trifluoroethyl) methylphosphonate serves as an effective Wadsworth-Emmons reagent, facilitating the formation of alkenes through a distinctive dephosphonylation mechanism. The trifluoroethyl groups impart significant electron-withdrawing effects, enhancing the electrophilicity of the phosphorus center. This results in accelerated reaction rates and improved selectivity in nucleophilic attacks. Its unique steric profile allows for precise control over reaction pathways, making it a valuable tool in synthetic organic chemistry.

Diethyl (2-oxopropyl)phosphonate

1067-71-6sc-234630
sc-234630A
5 g
25 g
$100.00
$431.00
(0)

Diethyl (2-oxopropyl)phosphonate acts as a versatile Wadsworth-Emmons reagent, promoting the synthesis of alkenes via a unique phosphonate elimination pathway. The presence of the 2-oxopropyl moiety enhances the reagent's reactivity by stabilizing transition states through favorable molecular interactions. This compound exhibits notable kinetic properties, allowing for rapid formation of products under mild conditions, while its steric configuration aids in directing selectivity during reactions.

Methyl diethylphosphonoacetate

1067-74-9sc-250370
10 g
$60.00
(0)

Methyl diethylphosphonoacetate acts as a versatile Wadsworth-Emmons reagent, promoting the synthesis of alkenes via a phosphonate-mediated pathway. Its unique structure allows for effective nucleophilic attack, leading to the formation of stable intermediates. The presence of the methyl group enhances steric accessibility, influencing reaction rates and selectivity. Additionally, the compound's electronic properties facilitate a range of coupling reactions, making it a valuable tool in synthetic organic chemistry.

Diethyl allylphosphonate

1067-87-4sc-227837
5 g
$79.00
(0)

Diethyl allylphosphonate serves as a distinctive Wadsworth-Emmons reagent, enabling the formation of alkenes through a phosphonate-based mechanism. Its allyl group introduces unique stereoelectronic effects, enhancing reactivity and selectivity in nucleophilic additions. The compound's ability to stabilize transition states contributes to its efficiency in forming carbon-carbon bonds. Furthermore, its solubility characteristics facilitate smooth reaction conditions, promoting diverse synthetic pathways in organic chemistry.

Diethyl benzylphosphonate

1080-32-6sc-227839
25 g
$66.00
(0)

Diethyl benzylphosphonate acts as a versatile Wadsworth-Emmons reagent, facilitating the synthesis of alkenes via a phosphonate-mediated pathway. The presence of the benzyl group enhances the electrophilic character of the phosphorus center, promoting efficient nucleophilic attack. Its unique steric and electronic properties allow for selective reactions, while the compound's stability under various conditions supports a range of synthetic transformations, making it a valuable tool in organic synthesis.

Diethyl 4-methoxybenzylphosphonate

1145-93-3sc-227834
25 g
$134.00
(0)

Diethyl 4-methoxybenzylphosphonate serves as an effective Wadsworth-Emmons reagent, enabling the formation of alkenes through a phosphonate-based mechanism. The methoxy substituent enhances the electron density on the aromatic ring, influencing the reactivity and selectivity of the phosphorus atom. This compound exhibits remarkable stability and can engage in diverse reaction pathways, allowing for the generation of complex molecular architectures with precision in organic synthesis.

Tetraethyl methylenediphosphonate

1660-94-2sc-253663
5 ml
$86.00
(0)

Tetraethyl methylenediphosphonate acts as a versatile Wadsworth-Emmons reagent, facilitating the synthesis of alkenes via a unique phosphonate mechanism. Its dual phosphonate groups enhance nucleophilicity, promoting efficient carbon-carbon bond formation. The compound's ability to stabilize transition states contributes to its favorable reaction kinetics, while its steric properties allow for selective reactions, making it a valuable tool in constructing intricate organic frameworks.

Triethyl 2-fluoro-2-phosphonoacetate

2356-16-3sc-253747
1 g
$48.00
(0)

Triethyl 2-fluoro-2-phosphonoacetate serves as a distinctive Wadsworth-Emmons reagent, characterized by its ability to generate alkenes through a phosphonate-based pathway. The presence of a fluorine atom enhances electrophilic character, facilitating nucleophilic attack and subsequent carbon-carbon bond formation. Its unique steric and electronic properties allow for regioselective reactions, while the compound's stability in various solvents supports diverse synthetic applications, making it a noteworthy reagent in organic synthesis.

Diethyl cyanomethylphosphonate

2537-48-6sc-239729
10 g
$62.00
(0)

Diethyl cyanomethylphosphonate acts as a versatile Wadsworth-Emmons reagent, notable for its ability to form alkenes via a phosphonate mechanism. The presence of a cyano group enhances its reactivity, promoting efficient nucleophilic attacks. This compound exhibits unique kinetic properties, allowing for rapid reaction rates under mild conditions. Its distinct electronic structure contributes to selective regio- and stereochemistry, making it a valuable tool in synthetic organic chemistry.