Used for organic synthesis. Used as a pesticide stabilizer, diesel engine oil antifreeze, etc. 2-methyl-2,4-pentanediol has permeability and good dispersibility towards inorganic substances. In addition to being used as a solvent, it is also used as a dry cleaning agent, automotive brake oil, printing ink, pigment dispersant, wood preservative, etc. Used as a solvent, spice, medical disinfectant, penetrating agent for fabrics, and auxiliary agent for papermaking and leather processing.

1 is obtained by condensation of acetone to obtain diacetone alcohol, which is then hydrogenated in the liquid phase.
2. Refining method: Dissolve 2-methyl-2,4-pentanediol in 1% sodium hydroxide, heat at 140 ℃ for 1 hour, and perform vacuum distillation below 140 ℃.
Three new copper based ester hydrogenation catalytic systems, a fixed bed continuous hydrogenation process with high space velocity, low pressure, and low hydrogen ester ratio, have formed the technology of adipic acid esterification hydrogenation to prepare hexanediol. This process has low energy consumption, no pollution, and an esterification rate of up to 98%. HDO is an environmentally friendly chemical raw material that can be mixed with organic chemicals in any proportion, without corrosion, and can generate a series of new fine chemicals, known as the new cornerstone of organic synthesis. Solid strong acid resin was used instead of inorganic acid as a catalyst to esterify adipic acid to prepare dimethyl adipate. After the reaction, the catalyst was quickly separated by filtration. In addition, copper based catalysts can be used for the catalytic hydrogenation of dimethyl adipate and dimethyl glutarate to prepare diols. The optimal reaction temperature in a fixed bed can be controlled at 200 ℃~220 ℃, the lowest reaction pressure can be reduced to 5MPa, the liquid space velocity is 0.3/h-0.5/h, the hydrogen ester molar ratio is 130-150, and the yield is stable at over 97%. The above indicators are superior to existing reports, especially the significant reduction in reaction pressure and hydrogen ester molar ratio, which can significantly reduce the investment and operating costs of production equipment, and reduce operational difficulty.