Organic phosphine-functionalized pyridine-based ionic liquid and preparation method thereof

An ionic liquid and pyridine technology, applied in the field of organic phosphine functionalized pyridine ionic liquids and their preparation, can solve the problems of unreported synthesis of pyridine ionic liquids, shorten the reaction time, be easier to purify, and improve the reaction effect of speed
CN103374034AInactive Publication Date: 2013-10-30NINGBO UNIV
4 Cites 6 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
NINGBO UNIV
Publication Date
2013-10-30
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
Patent Text Reader

Abstract

The invention relates to organic phosphine-functionalized pyridine-based ionic liquid and a preparation method thereof. The preparation method is characterized by comprising the following steps of: mixing pyridine compounds with bromo-alkyl diphenyl phosphine oxide, bromo-alkyl phenyl ethyl phosphonate or bromo-alkyl diethyl phosphonate at a molar ratio of 1:(1-1.2), adding organic solvents, putting the mixture into a microwave reacting device, carrying out stirring for reaction for 60-150 minutes at the microwave power of 350-500 W and the reaction temperature of 80-110 DEG C to obtain crude products, and removing unreacted raw materials, so as to obtain the organic phosphine-functionalized pyridine-based ionic liquid. According to the method, the novel organic phosphine-functionalized pyridine-based ionic liquid is provided and simultaneously is synthesized by utilizing microwave heating, the reaction time is greatly shortened, and the reaction rate is improved; the raw material utilization ratio is relatively high, no by-product is produced, and the synthesized ionic liquid is easy to purify and has the characteristics of high efficiency, speediness and low cost.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a pyridine ionic liquid and a preparation method thereof, in particular to an organic phosphine functionalized pyridine ionic liquid and a preparation method thereof. Background technique

[0002] Ionic liquids are salts that are liquid at low temperatures (<100°C). This kind of salt that can maintain a liquid state at low temperature is different from traditional organic solvents. It has many excellent properties: low vapor pressure, non-volatile, non-toxic, non-flammable and explosive, difficult to oxidize, and has high thermal stability. Compatible with organic solvents, etc. In the past ten years, ionic liquids have been widely used in the research and development of organic synthesis, electrochemistry, chemical separation and preparation of polymer materials.

[0003] The study of ionic liquids is a relatively new field of research. At present, the preparation of ionic liquids mostly adopts the traditional heating me...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More