41results about How to "The reaction process is mild and easy to control" patented technology

The invention provides a method for preparing organic lactone. The method is characterized in that carbon materials are used as catalyst, the carbon materials may be graphite, graphene, carbon nano tube, active carbon and so on; organic ketone is used as substrate, oxygen or air is used as oxygen source, organic aldehydes materials are used as reductant, and organic solvent is added into reaction system. The method has the following advantages: the preparation for the catalyst is simple; the reaction condition is mild, secure, credible and environmental friendly; the selectivity and the yield of the obtained target products are about 100%; and the catalyst can be used repeatedly. The method solves the problem that the traditional preparation technology for lactone has poor security and low yield, and has good industrial application prospect.

The invention provides a new method for efficiently and highly selectively synthesizing 2'-iodo[1,1'-biaryl]-2-organophosphonate compounds containing different functional groups, which uses cheap transition metal copper The salt is used as a catalyst, and the compound containing P(O)-OH and bisaryltrifluoromethanesulfonic acid periodiodium salt is used as a reaction substrate, and an organic solvent and a base are added to the reaction system. The advantages of the method are: the catalyst is cheap and easy to obtain; the substrate has high applicability; the reaction conditions are mild, safe and reliable; the selectivity of the obtained target product is close to 100%, and the yield is as high as more than 90%. The method solves the shortcomings of the traditional synthesis of 2'-iodo[1,1'-biaryl]-2-organophosphonate compounds, such as poor reaction selectivity, cumbersome reaction steps, low yield, and the need to use environmentally harmful reagents. , has good industrial application prospects. The present invention also provides corresponding 2'-iodo[1,1'-biaryl]-2-organophosphonate derivatives substituted with different functional groups.

The invention provides a method for efficiently and high-selectively compounding chiral R- / S- diaryl methyl substituted chiral organic phosphonate derivatives containing different substituting functional groups. Cesium carbonate is taken as a catalyst; chiral P(O)-H compound and 4-aryl methylene-2,6-di-tert-butyl-2,5-cyclohexadiene-1-ketone compounds are taken as reaction substrates; an organic solvent is added into a reaction system. The method has the advantages that the catalyst is low-cost and can be easily acquired; the substrates are high in applicability; the reaction conditions are mild, safe and reliable; the three-dimensional enantioselectivity of the acquired target product is above 99% and the yield is above 80%. The method can overcome the defects of low enantioselectivity, complex reaction steps, and the like, of the traditional reaction for compounding chiral R- / S- diaryl methyl substituted chiral organic phosphonate derivatives, can avoid the traditional chiral resolution method and has an excellent industrial application prospect. The invention also provides the corresponding chiral R- / S- diaryl methyl substituted chiral organic phosphonate derivatives containing different substituting functional groups.

The invention provides a high-efficiency and high-selectivity synthetic method for organic phosphate derivatives containing different substituted functional groups. The method uses tetrabutylammoniumiodide as a catalyst and uses a P(O)-OH-containing compound and a methyl-containing aromatic hydrocarbon compound as reaction substrates, and an organic solvent and an oxidant are added in the reaction system. The method has the advantages that the catalyst is cheap and easy to obtain, the substrate applicability is high, the reaction conditions are mild, safe and reliable, the selectivity of an obtained target product is close to 100%, and the yield is up to 90% or more. The method solves shortages in traditional organic phosphate ester compound synthetic methods that reaction selectivity ispoor, reaction steps are complicated, the yield is low, environmentally-harmful agents are used and the like, and has better industrial application prospects. The invention also provides the corresponding organic phosphate derivatives containing the different substituted functional groups.

The invention provides a method for efficiently and highly selectively synthesizing 2-iodine-1-phosphoryl substituted alkane compounds containing different functional groups. N ‑Iodosuccinimide (NIS) is used as an accelerator, P(O)‑OH-containing compounds and olefins are used as reaction substrates, and an organic solvent is added to the reaction system. The advantages of this method are: the accelerator is cheap and easy to obtain; the substrate has high applicability; the reaction conditions are mild, safe and reliable; the selectivity of the obtained target product is close to 100%, and the yield is as high as 90%. This method develops a new way to synthesize substituted 2-iodo-1-phosphoryl substituted alkane compounds containing different functional groups, and solves the problems of poor reaction selectivity, cumbersome reaction steps, It has the disadvantages of low yield and the need to use harmful reagents to the environment, and has good industrial application prospects. The present invention also provides corresponding 2-iodo-1-phosphoryl substituted alkane derivatives substituted with different functional groups.

The invention provides a method for preparing organic lactone. The method is characterized in that: cubic cobaltosic oxide is taken as a catalyst, and the catalyst is prepared with a hydrothermal method; and organic ketone is taken as a substrate, oxygen or air is taken as an oxygen source, an organic lactone substance is taken as a reducing agent, and an organic solvent is added into a reaction system. The method has the advantages that: the catalyst is easy to prepare; reaction conditions are mild, and the method is safe, reliable and environmentally-friendly; the selectivity and yield of an obtained target product are close to 100 percent; and the catalyst can be used for repeatedly. Due to the adoption of the method, the problems of poor safety, low yield and the like existing in the conventional lactone preparation process are solved, and the method has a good industrial application prospect.

The invention provides a method for efficiently and highly selectively synthesizing o-diaryl phosphoryl-substituted phenolic derivatives containing different functional groups, which uses water as a catalyst to synthesize diaryl derivatives containing P(O)-H bonds The phosphorus oxy compound and the 4,4-dimethoxy-2,5-cyclohexadiene-1-ketone compound are used as reaction substrates, and an organic solvent is added to the reaction system. The method has the advantages that the catalyst is cheap and easy to obtain; the substrate has high applicability; the reaction condition is mild, safe and reliable; the yield of the obtained target product is as high as more than 90%. The method solves the shortcomings of traditional synthesis of o-diaryl phosphoryl substituted phenol derivatives such as poor reaction selectivity, cumbersome reaction steps, low yield, and the need to use harmful reagents to the environment, and has good industrial application prospects. The present invention also provides corresponding o-diaryl phosphoryl substituted phenol derivatives containing different functional groups.

The invention provides a method for efficiently and selectively synthesizing diaryl methyl substituted organic phosphonate derivatives containing different substitute functional groups. The method uses cesium carbonate as a catalyst, and uses a P (O)-H compound and 4-arylmethylene-2, 6-di-tert-butyl 2, 5-cyclohexadiene-1-ketone compounds as reactants; an organic solvent is added into a reaction system. The method has the advantages that the catalyst is cheap and easy to obtain; the reactants are high in applicability; the reaction is mild in conditions, safe and reliable; the selectivity of the obtained target product is close to 100%, and the yield is as high as 90% or above. The method solves the problems that the conventional synthetic diaryl methyl substituted organic phosphonate derivatives are poor in reaction selectivity, tedious in reaction steps and low in yield, needs to use environmentally harmful reagents, and the like; the method has a good industrial application prospect.The invention also provides the corresponding diaryl methyl substituted organic phosphonate derivatives containing the different substitute functional groups.

The invention discloses a size-controllable Schiff base-type polymer nano-particle, which is prepared through a Schiff base reaction to 2,6-diaminopyridine and formalin, wherein molar ratio of the 2,6-diaminopyridine to formaldehyde in the formalin is 1:2-18. The invention also provides a preparation method of the size-controllable Schiff base-type polymer nano-particle with the 2,6-diaminopyridine and formalin as raw materials. The particle size of the size-controllable Schiff base-type polymer nano-particle can reach 120 nm to lowest. The preparation method is simple and environment-friendly and is carried out entirely in deionized water, has mild and easy-to-control reaction conditions, saves production cost and is easy to carry out in industrial production.