Dichloromethylene-dimethyliminium chloride
Dichloromethylene-dimethyliminium chloride (CAS: 33842-02-3), with the linear formula [Cl2C=N(CH3)2]+Cl-, is an organic compound of significant utility in chemical synthesis. It functions as a reactive iminium salt, often employed as a reagent for introducing specific functional groups into organic molecules. Its applications span the creation of complex heterocyclic compounds and other specialised organic intermediates. This compound is supplied by Tech Serve Solutions for research and development purposes.
- IUPAC
- (Dichloromethylene)dimethylammonium chloride,Phosgeniminium chloride,Vilsmeier reagent
- Synonyms
- (Dichloromethylene)dimethylammonium chloridePhosgeniminium chlorideVilsmeier reagent
![Dichloromethylene-dimethyliminium chloride ([Cl2C=N(CH3)2]+Cl-) — chemical structure, CAS 33842-02-3; Chemistry, fine chemical supplied by Tech Serve Solutions](/_next/image?url=https%3A%2F%2Fpub-f4d920c906024441a773a96f7098e551.r2.dev%2Fimages%2Fproducts%2F33842-02-3.png&w=3840&q=75)
Synthesis of Selenourea Derivatives
Dichloromethylene-dimethyliminium chloride serves as a reagent in the synthesis of selenourea compounds. This application highlights its utility in forming nitrogen- and selenium-containing heterocycles.
Preparation of Pyrrolidine Derivatives
The compound has been utilised in the preparation of complex organic molecules such as (R)-2-(2-chloroethyl)pyrrolidine-1-carboxylic acid ethyl ester. This demonstrates its role in constructing substituted heterocyclic systems.
Introduction of Amide Chloride Groups
Dichloromethylene-dimethyliminium chloride is effective for the introduction of an amide chloride group into activated substrates. This functionality is crucial for subsequent synthetic transformations in organic chemistry.
| Molecular weight | 162.45 |
|---|---|
| Linear formula | [Cl2C=N(CH3)2]+Cl- |
| Storage temperature | 2-8°C |
| Application | Dichloromethylene-dimethyliminium chloride was used as reagent in the synthesis of selenourea1 and (R)-2-(2-chloroethyl)pyrrolidine-1-carboxylic acid ethyl ester2. It was used for introducing amide chloride group into activated substrates3. |
| Melting point | 183-187 °C (dec.)(lit.) |


Hazard statements
- H314Causes severe skin burns and 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
- P310Immediately call a POISON CENTER or doctor
| Protective equipment | Eyeshields, Faceshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges |
|---|---|
| Transport (UN / ADR) | UN 3261 8 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | C |
| Risk statements (R) | 14-34-37 |
| Safety statements (S) | 26-36/37/39-45 |
| Supplemental hazards | Reacts violently with water. |
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 Dichloromethylene-dimethyliminium chloride used for?
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Dichloromethylene-dimethyliminium chloride is used as a reagent in chemical synthesis, particularly for introducing amide chloride groups, and in the preparation of compounds like selenourea derivatives and substituted pyrrolidines.
What are the CAS number and formula for Dichloromethylene-dimethyliminium chloride?
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The CAS number is 33842-02-3, and its linear formula is [Cl2C=N(CH3)2]+Cl-.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Dichloromethylene-dimethyliminium chloride as a research or technical grade chemical. We do not represent it as USP, BP, or EP grade. Specific purity information can be requested.
How should Dichloromethylene-dimethyliminium chloride be handled?
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This compound is classified as corrosive and can cause severe skin burns and eye damage, and may cause respiratory irritation. It also reacts violently with water. Appropriate personal protective equipment, including eyeshields, face shields, gloves, and respiratory protection, must be used. Handle in a well-ventilated area away from moisture.
How is this chemical packed, shipped, and exported?
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Dichloromethylene-dimethyliminium chloride is typically packed and shipped according to international regulations for hazardous materials. As a global supplier, Tech Serve Solutions handles the export of chemicals, ensuring compliance with all relevant transport and customs requirements.
How can I request a sample or quote for Dichloromethylene-dimethyliminium chloride?
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To request a sample or a quote, please contact the Tech Serve Solutions sales team via the website or direct contact details provided. Please specify the quantity and any other relevant details for your inquiry.
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