O-Allyl 2,2,2-trichloroacetimidate
O-Allyl 2,2,2-trichloroacetimidate (CAS 51479-73-3) is an organic compound with the molecular formula C5H6Cl3NO and a molecular weight of 202.47 g/mol. This chemical serves as a valuable reagent in organic synthesis, primarily utilised for the protection of alcohol functionalities by converting them into allyl ethers. Its unique reactivity makes it useful in multi-step syntheses where base-sensitive groups are present.
- IUPAC
- 2,2,2-Trichloroacetimidic acid allyl ester
- Synonyms
- 51479-73-3C5H6Cl3NO2,2,2-Trichloroacetimidic acid allyl ester

Alcohol Protection
O-Allyl 2,2,2-trichloroacetimidate is employed as a reagent to efficiently protect alcohol groups as allyl ethers. This transformation is particularly useful in complex syntheses involving base-sensitive functionalities, allowing for selective reactions.
Organic Synthesis Building Block
As an organic building block, this compound facilitates the introduction of the allyl ether moiety. It is suitable for research and development in medicinal chemistry and material science requiring precise molecular construction.
Reagent for Derivatization
The compound acts as a derivatizing agent, enabling the formation of stable allyl ethers from alcohols. This application is crucial in synthetic strategies where temporary modification of hydroxyl groups is required.
| Molecular weight | 202.47 |
|---|---|
| Empirical formula | C5H6Cl3NO |
| Assay | 96% |
| Boiling point | 54-70 °C/7.5-11.25 mmHg |
| Density | 1.333 g/mL at 25 °C |
| Refractive index | n20/D 1.489 |
| Storage temperature | 2-8°C |
| Application | Reagent used for the protection of an alcohol as its allyl ether in the presence of base sensitive functionality.1 |


Hazard statements
- H302Harmful if swallowed
- H315Causes skin irritation
- H318Causes serious eye damage
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 73 °C / 163.4 °F |
| Transport (UN / ADR) | NA 1993 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22-37/38-41 |
| Safety statements (S) | 26-39 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is O-Allyl 2,2,2-trichloroacetimidate used for?
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This compound is used as a reagent for the protection of alcohols as their allyl ethers, particularly in the presence of base-sensitive functionalities. It serves as a valuable building block in organic synthesis.
What is the CAS number and formula for O-Allyl 2,2,2-trichloroacetimidate?
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The CAS number is 51479-73-3 and the empirical formula (Hill Notation) is C5H6Cl3NO.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies O-Allyl 2,2,2-trichloroacetimidate with a minimum assay of 96%. We do not represent this product as USP, BP, or EP grade.
How should O-Allyl 2,2,2-trichloroacetimidate be handled safely?
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This compound is classified as dangerous. It is harmful if swallowed, causes skin irritation, causes serious eye damage, and may cause respiratory irritation. Always handle with appropriate personal protective equipment, including eyeshields, face shields, and gloves. Use in a well-ventilated area or with a suitable respirator. Refer to the Safety Data Sheet for comprehensive handling instructions.
How is O-Allyl 2,2,2-trichloroacetimidate shipped and exported?
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Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals. We adhere to all relevant regulations for the safe and compliant packaging and shipment of O-Allyl 2,2,2-trichloroacetimidate worldwide.
How can I request a sample or quote for O-Allyl 2,2,2-trichloroacetimidate?
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Please contact our sales team through the website or by phone to request a sample or a formal quotation for O-Allyl 2,2,2-trichloroacetimidate.
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