Metal bismuth compounds, preparation method and application thereof
A technology of bismuth compounds and metals, applied in the direction of bismuth organic compounds, etc., can solve problems such as inability to form new bismuth compounds
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0024] Compound I and its synthesis
[0025] Synthetic steps are as follows (following operations are carried out in glove box):
[0026] 1) Dissolve 0.8 mmol of the ligand compound in 2 ml of benzene and 3 ml of THF, add 0.2 mmol (0.0505 g) of NaH, and wait until no hydrogen escapes to obtain solution A;
[0027] 2) Weigh 0.805 mmol of bismuth trihalide and dissolve it in 3 ml of THF to obtain solution B;
[0028] 3) Add solution A to solution B, stir for 20-30 minutes, and react to obtain metal bismuth compound;
[0029] 4) The solvent is removed in a vacuum, and then extracted with toluene, and the product is obtained after removing the toluene from the extract, with a yield of 70%.
Embodiment 2
[0031] Compound II and its synthesis
[0032] The synthesis steps are as follows:
[0033] 1)N 2 Under protection, under ice-water bath conditions (the following additions are also carried out under ice-water bath conditions), 3.05 mmol of Na (0.0700 g) was added to 10 ml of alcohol, and the reaction was completed until hydrogen escaped;
[0034] 2)N 2 After quickly adding 1 mmol of bismuth trichloride (0.3153 grams) under protection, the solution immediately becomes a milky white suspension;
[0035] 3)N 2 Under protection, quickly add 1 mmol of ligand compound;
[0036] 4) After reacting overnight, the temperature was slowly raised to room temperature. After the reaction, the solvent was removed in a vacuum, and then extracted with toluene. The product was obtained after removing the toluene from the extract with a yield of 80%.
[0037] Metal bismuth compounds in the following examples were all prepared according to the operation steps described in Example 1 or 2.
Embodiment 3
[0039] Add 0.286 mmol Bi compound (R 1 =R 2 =t-Bu, R'=Et 2 NCH 2 CH 2 , X=Cl) and 28.6 mmoles of propylene oxide, stirred for 5 minutes and passed into CO 2 to 2.5 MPa, placed in an oil bath reactor with magnetic stirring at 120°C for reaction, after 2 hours of reaction, place the reaction kettle in a mixture of ice and water to cool the reaction liquid in the kettle. The reaction result is: the yield of propylene carbonate is 50.7%, and the selectivity of propylene carbonate is 100%.
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com