Date published: 2025-12-5

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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 1 to 10 of 49 total

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Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

Dibutyl butylphosphonate

78-46-6sc-252685
5 ml
$219.00
(0)

Dibutyl butylphosphonate serves as a versatile Wadsworth-Emmons reagent, facilitating the formation of alkenes through its unique phosphonate ester structure. Its reactivity is characterized by the generation of stabilized carbanions, which enhance nucleophilic attack on carbonyl compounds. The compound's steric bulk influences selectivity in reactions, while its ability to engage in both E and Z isomerization pathways allows for diverse synthetic applications. Additionally, its solubility properties can affect reaction conditions and product yields.

Diethyl (methylthiomethyl)phosphonate

28460-01-7sc-255089
25 g
$200.00
(0)

Diethyl (methylthiomethyl)phosphonate serves as a versatile Wadsworth-Emmons reagent, characterized by its ability to facilitate the formation of alkenes through a unique phosphonate-mediated mechanism. The presence of the methylthio group introduces steric and electronic effects that influence reaction selectivity and enhance nucleophilicity. This compound's distinct molecular interactions allow for rapid formation of phosphonate intermediates, streamlining synthetic routes and improving overall yields in various coupling reactions.

Diethyl (2-oxo-2-phenylethyl)phosphonate

3453-00-7sc-234629
1 g
$34.00
(0)

Diethyl (2-oxo-2-phenylethyl)phosphonate acts as a potent Wadsworth-Emmons reagent, notable for its ability to generate alkenes via a phosphonate ester mechanism. The presence of the phenyl group enhances the electrophilic character of the carbonyl, promoting selective nucleophilic attack. Its unique reactivity profile allows for efficient formation of stable intermediates, facilitating smooth reaction kinetics and enabling diverse synthetic transformations with high regioselectivity.

Triethyl 4-phosphonocrotonate, mixture of isomers

10236-14-3sc-224322
10 g
$90.00
(0)

Triethyl 4-phosphonocrotonate, a versatile Wadsworth-Emmons reagent, showcases remarkable reactivity through its unique isomeric forms. The compound's phosphonate moiety enhances its nucleophilicity, allowing for efficient formation of carbon-carbon double bonds. Its distinct steric and electronic properties facilitate selective reactions, leading to the generation of diverse alkenes. The compound's ability to stabilize transition states contributes to its favorable reaction kinetics, making it a valuable tool in synthetic organic chemistry.

Diethyl 4-aminobenzylphosphonate

20074-79-7sc-234648
5 g
$120.00
(0)

Diethyl 4-aminobenzylphosphonate serves as an effective Wadsworth-Emmons reagent, characterized by its ability to engage in nucleophilic attack due to the presence of the phosphonate group. This compound exhibits unique reactivity patterns, enabling the formation of various alkenes through selective elimination pathways. Its electronic structure allows for enhanced stabilization of intermediates, promoting efficient reaction rates and facilitating the synthesis of complex organic frameworks.

Dimethyl 2-oxoheptylphosphonate

36969-89-8sc-255103
1 g
$36.00
(0)

Dimethyl 2-oxoheptylphosphonate functions as a versatile Wadsworth-Emmons reagent, notable for its ability to generate stabilized carbanions through the phosphonate moiety. This compound's unique steric and electronic properties facilitate selective reactions, leading to the formation of diverse alkenes. Its reactivity is influenced by the carbonyl group, which enhances the electrophilic character, allowing for rapid and efficient coupling with aldehydes and ketones in synthetic pathways.

Triethyl phosphonoacetate-1-13C

61203-67-6sc-258289
sc-258289A
250 mg
1 g
$120.00
$476.00
(0)

Triethyl phosphonoacetate-1-13C serves as a distinctive Wadsworth-Emmons reagent, characterized by its ability to form stable carbanions via the phosphonate group. The incorporation of the 13C isotope allows for advanced NMR studies, providing insights into reaction mechanisms. Its unique steric hindrance and electronic distribution promote regioselectivity in alkene formation, while the presence of the acetate moiety enhances nucleophilicity, facilitating efficient coupling with carbonyl compounds.

Diethylphosphonoacetic acid

3095-95-2sc-252717
5 ml
$25.00
(0)

Diethylphosphonoacetic acid acts as a versatile Wadsworth-Emmons reagent, notable for its capacity to generate highly reactive phosphonate intermediates. The presence of the diethyl group enhances solubility and stability, allowing for smoother reaction kinetics. Its acidic nature facilitates deprotonation, leading to the formation of nucleophilic species that readily engage in carbon-carbon bond formation. Additionally, the compound's unique electronic properties influence selectivity in subsequent reactions, making it a valuable tool in synthetic organic chemistry.

Diethyl chloromethylphosphonate

3167-63-3sc-239726
1 ml
$91.00
(0)

Diethyl chloromethylphosphonate serves as a potent Wadsworth-Emmons reagent, characterized by its ability to form phosphonate esters through nucleophilic substitution. The chloromethyl group enhances electrophilicity, promoting rapid reaction with nucleophiles. Its unique steric and electronic properties facilitate selective reactions, allowing for the formation of complex carbon frameworks. The compound's reactivity is further influenced by the presence of the phosphonate moiety, which stabilizes intermediates and enhances overall reaction efficiency.

Diethyl 2-phenylethyl phosphonate

54553-21-8sc-234644
10 g
$105.00
(0)

Diethyl 2-phenylethyl phosphonate acts as an effective Wadsworth-Emmons reagent, notable for its ability to generate alkenes via the elimination of phosphonate esters. The presence of the phenylethyl group introduces unique steric hindrance, which can influence regioselectivity in reactions. Its phosphonate structure allows for efficient formation of stable intermediates, while the electron-donating nature of the phenyl group enhances nucleophilic attack, leading to diverse synthetic pathways.