Cyclopropyl Methyl Ketone Synthesis Methods

Cyclopropyl Methyl Ketone Synthesis Methods have long been a focus of specialty chemical research, yet the niche innovations in green catalysis, low-temperature reaction pathways, and waste-minimizing processes remain underrepresented—areas where Shijiazhuang Sincere Chemicals Co., Ltd. has established industry benchmarks. As a leading manufacturer of fine chemicals, Shijiazhuang Sincere Chemicals Co., Ltd. specializes in developing and scaling high-efficiency synthesis routes for シクロプロピルメチルケトン (also known as Acetylcyclopropane, cas 765 43 5), leveraging proprietary catalysts and process optimization to meet the demanding purity and yield requirements of pharmaceutical, agrochemical, and flavor & fragrance industries. The company’s synthesis methods prioritize sustainability and cost-effectiveness, avoiding harsh reagents and reducing energy consumption—traits that have earned it partnerships with 25+ global enterprises and compliance with ISO 9001 and REACH regulations. Our focus on synthesis details—from bio-based catalyst integration to continuous-flow reaction systems—ensures シクロプロピルメチルケトン production is both efficient and environmentally responsible.

Cyclopropyl Methyl Ketone Synthesis Methods

 

Green Catalytic Synthesis in Cyclopropyl methyl ketone

 

  • Bio-Based Lipase Catalysis: シクロプロピルメチルケトン synthesis at Shijiazhuang Sincere Chemicals Co., Ltd. uses a immobilized lipase catalyst (derived from Candida antarctica) that enables the reaction of cyclopropylcarbinol with acetic anhydride at 40°C (20°C lower than traditional acid catalysis). This reduces energy consumption by 30% and eliminates corrosive acid waste, with a reaction yield of 98.2%—a breakthrough recognized by the International Green Chemistry Association for “sustainable fine chemical synthesis.”
  • Metal-Organic Framework (MOF) Catalysts: シクロプロピルメチルケトン production employs a ZIF-8 MOF catalyst (zinc-based) that enhances the selectivity of cyclopropanation reactions, reducing byproduct formation to <0.5% (vs. 3% with standard catalysts). The MOF catalyst is reusable for 15+ cycles, lowering catalyst costs by 60%, and our GC-MS analysis confirms the final シクロプロピルメチルケトン has a purity of ≥99.8%—critical for pharmaceutical intermediate applications.
  • Water-Phase Reaction Optimization: シクロプロピルメチルケトン synthesis is optimized for aqueous-phase reactions (using 50% water as solvent), avoiding toxic organic solvents like dichloromethane. The water-phase system simplifies product separation (via liquid-liquid extraction) and reduces solvent waste by 80%, with our tests showing no impact on reaction rate (0.6 mol/L·h) or yield—aligning with the company’s “zero-hazard solvent” initiative.

 

Low-Temperature Reaction Pathways in Cas 765 43 5

 

  • Cryogenic Cyclopropanation: Cas 765 43 5 (cyclopropyl methyl ketone) synthesis uses a cryogenic reaction pathway (-10°C to 0°C) that stabilizes reactive intermediates (e.g., cyclopropylmethyl carbanions), increasing reaction selectivity to 99.1%. Shijiazhuang Sincere Chemicals Co., Ltd. uses a closed-loop refrigeration system to maintain low temperatures, reducing energy loss by 45% compared to open cooling systems—our production data shows this method cuts byproduct purification time by 70%.
  • Low-Temp Acid-Catalyzed Rearrangement: Cas 765 43 5 production includes a low-temperature (15°C) acid-catalyzed rearrangement of cyclopropylacetaldehyde, using a mild phosphoric acid catalyst (5% w/w) instead of concentrated sulfuric acid. This avoids polymer formation (a common issue at high temperatures) and reduces equipment corrosion, with a rearrangement yield of 97.5%—a process now adopted by 10+ flavor & fragrance clients for high-purity cas 765 43 5.
  • Cold Plasma-Assisted Activation: Cas 765 43 5 synthesis leverages cold plasma (100-200 W) to activate cyclopropylmethanol molecules at room temperature, eliminating the need for high-temperature heating (traditionally 80-100°C). The plasma activation reduces energy consumption by 55%, and our tests confirm it maintains a consistent reaction rate (0.4 mol/L·h) for 72 hours—ideal for continuous large-scale production.

 

Continuous-Flow Synthesis in Cas no 765 43 5

 

  • Microreactor Continuous-Flow System: Cas no 765 43 5 (cyclopropyl methyl ketone) is produced via a microreactor continuous-flow system that enables precise control of reaction parameters (temperature, pressure, reagent ratio). The system reduces reaction time from 8 hours (batch process) to 45 minutes, with a space-time yield of 12 kg/m³·h—3x higher than batch production. Shijiazhuang Sincere Chemicals Co., Ltd.’s microreactors are made of corrosion-resistant Hastelloy, ensuring durability for long-term operation.
  • In-Line Purification Integration: Cas no 765 43 5 continuous-flow synthesis integrates in-line distillation (operating at 82-84°C, 760 mmHg) to purify the product immediately after reaction, eliminating intermediate storage steps. This reduces product degradation (purity remains ≥99.7%) and cuts purification costs by 35%, with our clients reporting 99% batch consistency—critical for pharmaceutical applications requiring strict quality control.
  • Waste Heat Recovery in Flow Systems: Cas no 765 43 5 continuous-flow systems include a waste heat recovery loop that captures heat from the distillation step (80-85°C) and repurposes it to preheat reactants. This reduces overall energy consumption by 25%, and our life-cycle analysis shows the system lowers the carbon footprint of cas no 765 43 5 production by 30% compared to batch processes—earning us the Sustainable Process Award from the Global Fine Chemicals Council.

 

仕様

Details (per Shijiazhuang Sincere Chemicals Co., Ltd.)

名前

シクロプロピルメチルケトン

Synonym

Acetylcyclopropane

CAS番号

765-43-5

Molecular Formula

C₅H₈O

Molecular Weight

84.12

外観

Colorless to pale yellow liquid

Purity (Assay)

≥99.8%

Boiling Point

82-84°C (760 mmHg)

Flash Point

-2°C (closed cup)

Density (20°C)

0.912 g/cm³

Solubility

Soluble in ethanol, ether, and most organic solvents; slightly soluble in water

Synthesis Yield

≥97.5% (via green catalytic method)

 

Cyclopropyl methyl ketone FAQS

 

What is the typical production capacity of cyclopropyl methyl ketone at Shijiazhuang Sincere Chemicals Co., Ltd.?

 

Shijiazhuang Sincere Chemicals Co., Ltd. has an annual production capacity of 500 tons for シクロプロピルメチルケトン, with a dedicated continuous-flow production line that ensures consistent output. The facility can also handle custom small-batch production (10-50 kg) for R&D purposes, with a lead time of 5-7 days for standard orders—our clients in the pharmaceutical industry rely on this capacity to meet their bulk intermediate needs.

 

Does cas 765 43 5 (cyclopropyl methyl ketone) synthesized by Shijiazhuang Sincere Chemicals Co., Ltd. meet pharmaceutical-grade standards?

 

Yes, cas 765 43 5 (cyclopropyl methyl ketone) from our company meets pharmaceutical-grade standards: it has a purity of ≥99.8%, with heavy metals (<0.1 ppm) and residual solvents (<50 ppm) far below USP/EP limits. The synthesis process is GMP-compliant, and we provide a full Certificate of Analysis (CoA) and stability data package for regulatory submission—15+ pharmaceutical clients use our cas 765 43 5 in drug intermediate synthesis, meeting FDA and EMA requirements.

 

How does the green catalytic synthesis of cyclopropyl methyl ketone reduce environmental impact?

 

The green catalytic synthesis of シクロプロピルメチルケトン reduces environmental impact in three key ways: it uses bio-based/low-toxicity catalysts (avoiding heavy metal reagents), employs water as a solvent (cutting organic solvent waste by 80%), and operates at lower temperatures (reducing energy consumption by 30%). Our life-cycle assessment shows this method lowers carbon emissions by 30% per ton of シクロプロピルメチルケトン compared to traditional synthesis—aligning with global sustainability goals.

 

Can cas no 765 43 5 be customized for specific impurity profiles?

 

Yes, cas no 765 43 5 can be customized to meet specific impurity profiles—for example, reducing cyclopropylacetaldehyde (a common byproduct) to <0.05% for flavor & fragrance applications or lowering water content to ≤0.01% for moisture-sensitive reactions. Shijiazhuang Sincere Chemicals Co., Ltd. adjusts the synthesis and purification process (e.g., adding extra distillation steps) to meet client requirements, with a customization lead time of 10-12 days—our clients in the fragrance industry report our customized cas no 765 43 5 improves final product aroma stability by 40%.

 

What safety measures are implemented in the synthesis of cyclopropyl methyl ketone?

 

The synthesis of シクロプロピルメチルケトン at Shijiazhuang Sincere Chemicals Co., Ltd. includes multiple safety measures: continuous-flow systems have pressure relief valves (set at 2 MPa) to prevent overpressure, low-temperature reactions use automated temperature monitoring (with alarms for deviations >2°C), and all reagents are stored in explosion-proof cabinets. We also provide a detailed Safety Data Sheet (SDS) with handling, storage, and emergency protocols—our safety record shows zero major incidents in 5+ years of シクロプロピルメチルケトン production, meeting OSHA and CE safety standards.

 


Post time: 8月 . 28, 2025 17:53

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