Catechol → HCID 131730588, compound

Temperature

100 °C

A solution of catechol (3.30 g, 30 mmol) and xylene (45 ml) was dehydrated by distilling 5 mL of the solution. Thereafter, 6.58 g (20 mmol) of europium acetate was added to the solution while stirring. The mixed solution was refluxed for 1 hour, and then, while the distillation temperature was 132° C. or higher, distilled until the amount of the solution became half. After the distillation, solid content of the product was isolated by suction filtering using a membrane suction filter. The residual solid content was heated to 100° C. under vacuum using a vacuum dryer so that remaining volatile components were completely removed. The solid content (catechol-europium complex) was yellow in color. The yield amount was 6.28 g (20 mmol), and the yield percentage was 100%. 0.314 g of catechol-europium complex was dissolved into 10 mL of acetylacetone/toluene to produce a coating liquid.

1. distillationby distilling 5 mL of the solution
2. temperatureThe mixed solution was refluxed for 1 hour
3. customwas 132° C.
4. distillationhigher, distilled until the amount of the solution
5. distillationAfter the distillation, solid content of the product
6. customwas isolated by suction
7. filtrationfiltering
8. filtrationfilter
9. customwere completely removed
10. dissolution0.314 g of catechol-europium complex was dissolved into 10 mL of acetylacetone/toluene
11. customto produce a coating liquid

ORD record

ord-6ef22c3d9ef4405891d20b5e67238855

Source dataset

uspto-grants-2013_05

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US08445118B2