| Customization: | Available |
|---|---|
| CAS No.: | 616-38-6 |
| Formula: | C3h6o3 |
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Instead of phosgene as carbonylation agent
Phosgene has high reactivity, but its highly toxic and highly corrosive byproducts make it face great environmental pressure, so it will be gradually eliminated. DMC has a similar nucleophile reaction center. When the carbonyl group of DMC is attacked by nucleophile, the acyl-oxygen bond is broken to form the carbonyl compound, and the by-product is methanol. Therefore, DMC can replace phosgene as a safe reaction reagent to synthesize carbonic acid derivatives, such as carbamate pesticides, polycarbonate, isocyanate, etc. Among them, polycarbonate will be the field with the greatest demand for DMC. It is predicted that more than 80% of DMC will be used for the production of polycarbonate in 2005.
Instead of dimethyl sulfate as methylating agent
Due to similar reasons as phosgene, dimethyl sulfate also faces elimination pressure, and when the methyl carbon of DMC is attacked by nucleophile, its alkyl-oxygen bond breaks and methylated products are also generated. Moreover, the reaction yield and process with DMC is higher and simpler than that with dimethyl sulfate. The main applications include synthetic organic intermediates, pharmaceutical products, pesticide products and so on.
Low toxicity solvent
DMC has excellent solubility, its melting and boiling point range is narrow, the surface tension is large, the viscosity is low, the dielectric constant is small, at the same time has a high evaporation temperature and fast evaporation speed, so it can be used as a low toxic solvent in the coating industry and medicine industry. It can be seen that DMC not only has low toxicity, but also has the characteristics of high flash point, low steam pressure and high lower explosive limit in the air, so it is a green solvent integrating cleanliness and safety.
FAQ
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