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2,2-Dimethoxypropane CAS 77-76-9

Factory Supply 2,2-Dimethoxypropane CAS 77-76-9 with Best Price

  • Appearance: Colorless liquid
  • Purity: 99. 0%min
  • Stock: In stock
  • Sample: Available
  • Zhishang Chemical: 2,2-Dimethoxypropane Supplier & Manufacturer

Basic Info

What is 2,2-Dimethoxypropane?

2,2-Dimethoxypropane (DMP) Appearance is colorless and transparent liquid, purity blue 99% (GC), moisture <0.5%, relative density 0.8490-0.8520, refractive index 1.3760-1.3790, slightly soluble in water, soluble in Most organic solvents, this product is flammable, irritating, and belongs to hazardous chemicals.

2,2-Dimethoxypropane (DMP) is a key hydroxyl protecting agent, dehydrating agent, condensing agent, cyclizing agent, etc. in the newly developed semi-synthetic process of antibiotics, and its protective performance is better than that of common thionyl chloride, Methoxybenzaldehyde, etc. As an excellent protective agent, DMP can replace imported similar products, and use it to protect new antibiotics produced. The product has good quality, high drug efficacy, small side effects, fast absorption and low cost. It is widely used in the synthesis of medicines, pesticides, spices, etc.

2,2-Dimethoxypropane can be used not only for the preparation of acetals, acetonides, isopropylidene derivatives, the preparation of methyl esters of amino acids and enol ethers, but also for phosphate esters and dimethylboronic acid Preparation of esters.

2,2-Dimethoxypropane Uses

It can be used as hydroxyl protection and dehydrating agent, condensation agent, cyclization agent, etc. It is widely used in the synthesis of medicine, pesticide, spices, etc.

  • 2,2-Dimethoxypropane (DMP) is a key hydroxyl protecting agent, dehydrating agent, condensing agent, cyclizing agent, etc. in the newly developed semi-synthetic process of antibiotics, and its protective performance is better than that of common thionyl chloride, Methoxybenzaldehyde, etc.
  • As an excellent protective agent, DMP can replace imported similar products, and use it to protect new antibiotics produced. The product has good quality, high drug efficacy, small side effects, fast absorption and low cost. It is widely used in the synthesis of medicines, pesticides, spices, etc.
  • 2,2-Dimethoxypropane is an organic compound that is used as a protective agent in the synthesis of structurally related alkaloids such as narcisine and lycorine from bromobenzene.
  • 2,2-Dimethoxypropane was used as a dehydrating agent. It is also an intermediate in the synthesis of various carotenoids such as vitamin E, vitamin A and astaxanthin. Used as a reagent for the preparation of 1,2-diol, acetonide, isopropylidene derivatives of sugars, nucleosides, amino acid methyl esters and enol ethers.

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Preparation of 2,2-Dimethoxypropane

A kind of 2,2-dimethoxypropane preparation method, comprises the following steps:

Send methanol and acetone with a molar ratio of 4:1 into the middle tank of raw materials, pump them to the vaporization kettle, raise the temperature to 90°C, and vaporize under the condition of 0.01Mpa, and the vaporized mixed gas is cooled by the tower top condenser , a part is refluxed to the rectification tower, and the other part is further condensed to -20°C, and then reacted through a reaction bed filled with cation exchange resin, and the reaction liquid flows through the microporous molecular sieve for adsorption, and then flows back into the above-mentioned vaporization kettle to continue vaporization. When the content of 2,2-dimethoxypropane in the kettle is >30%, start to concentrate, and the unreacted methanol and acetone extracted from the top of the tower will be reused in the middle tank of raw materials; when the DMP content in the kettle is >65%, the The material is transported to the semi-finished product tank of 2,2-dimethoxypropane;

Transport the 2,2-dimethoxypropane semi-finished product to the rectification kettle, raise the temperature to 90°C, and firstly separate the unreacted methanol and acetone to the intermediate tank of raw materials for reuse; at the same time, carry out dehydration treatment, after the waste water is collected Send it to the distillation still to recover methanol and acetone. When the 2,2-dimethoxypropane content in the still is >99.0%, take out 2,2-dimethoxypropane and put it into the finished product tank, then put it into barrels and put it into storage.

Performance test: 2,2-dimethoxypropane: purity ≥ 99.8%.

Reference

  1. Ammonium alginate – WikiPedia
  2. Ammonium alginate – PubChem

2,2-Dimethoxypropane Supplier and Manufacturer

As a sebacic acid supplier and manufacturer with a strict standard product quality system certificate, Zhishang Chemical has long been providing the best sebacic acid raw materials to customers all over the world.

Over the years, relying on professional team experience and customer-centric team concept to meet customer needs in a timely manner, our company enjoys a high reputation in the world. At present, our company has served more than 6,000 customers and has established long-term cooperative relations with customers from many countries.

If you have a demand for sebacic acid and related products, please contact our service staff Zhishang Chemical – White directly, and we will provide you with high-quality products at the best price.

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