盐酸二甲双胍合成

2型糖尿病的一线治疗药物

Pharmaceutical & Drug Manufacturing Global Industrial Scale $3.2 billion

概述

Metformin is the most widely prescribed oral antidiabetic drug and the first-line treatment for type 2 diabetes globally. The synthesis involves the reaction of dimethylamine hydrochloride with dicyandiamide (cyanoguanidine) at elevated temperatures. Despite being known since 1922, metformin's full mechanism of action is still being elucidated. Its low cost, proven safety profile, and potential benefits beyond diabetes (cancer prevention, anti-aging) make it one of the most important drugs in current medicine.

化学工艺

Dimethylamine hydrochloride is heated with dicyandiamide in toluene or xylene at 130-150 degrees C for several hours. The metformin hydrochloride product precipitates from solution and is collected by filtration, washed, and recrystallized from methanol-isopropanol to achieve pharmaceutical-grade purity.

(CH₃)₂NH·HCl + H₂N-C(=NH)-NH-CN →[130-150 degrees C] (CH₃)₂N-C(=NH)-NH-C(=NH)-NH₂·HCl

原材料

  • Dimethylamine hydrochloride ((CH₃)₂NH·HCl) — Reaction of methanol with ammonia (Amine reactant)
  • Dicyandiamide (C₂H₄N₄) — Calcium cyanamide process (Guanidine precursor)

最终产品

  • Metformin hydrochloride (C₄H₁₁N₅·HCl) — Oral antidiabetic drug (USP/EP grade, >99% purity)
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Environmental Impact

The synthesis is relatively clean with high atom economy. Toluene solvent is recycled. The main environmental concern is dimethylamine emissions, which are controlled by scrubbing systems. Wastewater contains low levels of organic nitrogen compounds requiring biological treatment.

安全注意事项

最新创新

Solvent-free mechanochemical synthesis using ball milling has been demonstrated at pilot scale, eliminating organic solvents entirely.
Extended-release formulations using novel polymer matrices improve patient compliance.

生产规模

40000

吨/年

$3.2 billion

市场价值

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Frequently Asked Questions

What industry uses 盐酸二甲双胍合成?
盐酸二甲双胍合成 is used in the pharmaceutical & drug manufacturing sector at global industrial scale scale.
What process is involved in 盐酸二甲双胍合成?
Dimethylamine hydrochloride is heated with dicyandiamide in toluene or xylene at 130-150 degrees C for several hours. The metformin hydrochloride product precipitates from solution and is collected by filtration, washed, and recrystallized from methanol-isopropanol to achieve pharmaceutical-grade pu
What is the economic significance of 盐酸二甲双胍合成?
盐酸二甲双胍合成 has a market value of $3.2 billion and annual production of 40,000 tons.
What is the environmental impact of 盐酸二甲双胍合成?
The synthesis is relatively clean with high atom economy. Toluene solvent is recycled. The main environmental concern is dimethylamine emissions, which are controlled by scrubbing systems. Wastewater contains low levels of organic nitrogen compounds requiring biological treatment.
What raw materials are used in 盐酸二甲双胍合成?
The main raw materials include: Dimethylamine hydrochloride ((CH₃)₂NH·HCl), Dicyandiamide (C₂H₄N₄).