Catechol → Zirconium Catecholate

Temperatur

100 °C

A solution of catechol (2.20 g, 20 mmol) and toluene (25 ml) was dehydrated by distilling 5 mL of the solution. Thereafter, 5.00 g (10.6 mmol) of zirconium(IV) isopropoxide was added to the solution while stirring. The mixed solution was refluxed for 1 hour, and then, while the distillation temperature was 100° 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-zirconium complex) was black in color. The yield amount was 3.07 g (10.0 mmol), and the yield percentage was 100%.

1. distillationby distilling 5 mL of the solution
2. temperatureThe mixed solution was refluxed for 1 hour
3. customwas 100° 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

ORD-Eintrag

ord-0cb4ccab636143edbe3653e2050fb660

Quelldatensatz

uspto-grants-2013_05

DOI

10.6084/m9.figshare.5104873.v1

Patentnummer

US08445118B2