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CAS 78-39-7 Triethyl Orthoacetate Nicotine And Pyrethroid Intermediates For Dyes Pharmaceutical Industry

CAS 78-39-7 Triethyl Orthoacetate Nicotine And Pyrethroid Intermediates For Dyes Pharmaceutical Industry

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    CAS 78-39-7 Triethyl Orthoacetate

    ,

    CAS 78-39-7 Ethyl orthoacetate

    ,

    Triethyl Orthoacetate Nicotine Nicotine and Pyrethroid Intermediates

  • Purity
    99%
  • Other Names
    Ethyl Orthoacetate
  • Molecular Formula
    C8H18O3
  • CAS NO.
    78-39-7
  • EINECS NO.
    201-112-4
  • Molecular Weight
    162.23
  • Place of Origin
    China
  • Brand Name
    HMHT
  • Certification
    ISO9001
  • Model Number
    HMHT0159
  • Minimum Order Quantity
    10 Kilogram/Kilograms
  • Price
    USD (1-3)/ Kilogram
  • Packaging Details
    30KG plastic bucket ; 200 KG barrel ; 1-ton IBC tote or as per customers' requirement
  • Delivery Time
    Within 3 Weeks
  • Payment Terms
    L/C, D/P, T/T, Western Union, MoneyGram
  • Supply Ability
    3000 Metric Ton/Metric Tons per Year

CAS 78-39-7 Triethyl Orthoacetate Nicotine And Pyrethroid Intermediates For Dyes Pharmaceutical Industry

CAS 78-39-7 Triethyl Orthoacetate 1,1,1-Triethoxyethane Intermediate For Dyes And Pharmaceutical Industry

 

Basic Information

 

Model Number : HMHT0159
Other Names :Ethyl orthoacetate; Orthoacetic acid triethyl ester; Acetic acid orthoethylester
Molecular Formula : C8H18O3
Molecular Weight : 162.23
CAS NO. : 78-39-7
EINECS NO. : 201-112-4

 

Product Parameters

 

Item
Specification
Appearance
Colorless and transparent liquid with an odor similar to ethyl acetate
Inchi
InChI=1/C8H18O3/c1-5-9-8(4,10-6-2)11-7-3/h5-7H2,1-4H3
Density
0.885g/cm3
Boiling point
142°C at 760 mmHg
Flash point36
36°C
Refractive index
1.395

 

Packaging Types

 

30KG plastic bucket ; 200 KG barrel ; 1-ton IBC tote or as per customers' requirement

 

Storage Information

 

It can be sealed and packed in plastic-lined iron drums, and stored in a dry, well-ventilated environment at room temperature. Avoid mixing and transporting with acids and oxides. Keep away from fire and heat sources and avoid rain and exposure.

            

Applications

 

It is commonly used as raw material for trans-trisubstituted olefins and chiral allenes, as well as raw materials for dyes, pharmaceuticals, pesticides, photographic equipment and other industries. Especially in the isopentenol-orthoacetate method (Sagami method) and chloroacetaldehyde-orthoacetate method (Sagami-Curalay method) to synthesize permethrin, triethyl orthoacetate is The most important raw material for preparing permethrin.

 

Resolve resolution

 

Triethyl orthoacetate is reacted with ethanol using acetonitrile in the presence of hydrogen chloride to generate imidate, and then alcoholysis to obtain triethyl orthoacetate. The reaction equation is as follows:
The reaction process is divided into three steps. The first step is the production of imidate, and the reaction is carried out in toluene solution. Equal moles of acetonitrile and absolute ethanol are dissolved in toluene, and anhydrous hydrogen chloride is continuously introduced for about 2 hours at a temperature of -5~0℃, and then reacted at room temperature for 36~48 hours. The amount of hydrogen chloride introduced is 1.1 moles of acetonitrile. Times. The reaction produces a large amount of crystalline product, which is imidate.
The second step is the alcoholysis reaction. The amount of absolute ethanol added is 3 times the mole of acetonitrile. At 40°C, about 20 hours of alcoholysis, the reaction process uses thymol blue as an indicator and slowly adds ammonia until the liquid is slightly Until the red turns into a stable yellow, the pH value of the feed liquid is between 5-6.
In the third step, the product is separated, and the material liquid is poured into ice water with a certain amount of ammonia water, stirred and washed thoroughly to dissolve the by-product of ammonium chloride. Separate the water layer and separate the water layer. The oil layer is dried with anhydrous potassium carbonate and then distilled. First, the solvent is evaporated, and the fraction at 142~148℃ is the triethyl orthoacetate product. The yield is more than 72%. If the high temperature solvent is used, the yield is expected to increase to 80%.

 

Company Profile

 

CAS 78-39-7 Triethyl Orthoacetate Nicotine And Pyrethroid Intermediates For Dyes Pharmaceutical Industry 0

 

Wuxi High Mountain Hi-tech Development Co., Ltd is a professional industrial company engaged in special

chemical production, technology research & development, and import & export. The company focuses on 

the production, trade, and research & development of various chemical products.

Since establishment, the company has been concentrating on constructing an international marketing

network and optimizing supply chain management, where we have established a long-term strategic

cooperation relationship with numerous large enterprises at home and abroad. Relying on our wide business

channels and professional experience, we are more skillfully providing products of stable but differentiated

quality, along with flexible, highly efficient & considerate service to satisfy our partner at more competitive pricing.

 

Efficiently treating our customers as partners with sincerity, specialization and satisfaction is our managerial

principle. Attributed to the backup of a dedicated technical team, filled with wide and profound knowledge

and practice in chemicals and world trade for 20 years, the company owns rich experience in product quality

control, technical solution, chemical logistics organization, packaging optimization, port operation, etc., which

accounts for its first-class cost control management and ensures to maintain the overwhelming competitive

advantage over others. In line with the principle of sharing the preferential cost and joint development, the

company has formed an interesting community for years with its customers at home and abroad. Sincerely

to build up a pleasant mutual trust, cooperative, win-win, and value-added sustainable partnership is what

we are achieving to grow together with you!

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