Lipatova, T. E. published the artcileCatalytic activity of copper β-diketonates in the formation of urethanes, HPLC of Formula: 14284-06-1, the publication is Doklady Akademii Nauk SSSR (1975), 220(4), 873-6 [Phys chem], database is CAplus.
Of 11 Cu dicarbonyl chelates tested for catalytic activity in the reaction of PhNCO with MeOH the 3 most active were (RCOCH2COR1)2Cu with R, R1 = EtO, Me; Me3C, Me; and Me3C, Me3C. The effect of the ligand on the π character of the Cu-ligand bond was the main factor. A correlation between reaction rate and ligand basicity was also found.
Doklady Akademii Nauk SSSR published new progress about 14284-06-1. 14284-06-1 belongs to copper-catalyst, auxiliary class Copper, name is Copper(II) ethylacetoacetate, and the molecular formula is 0, HPLC of Formula: 14284-06-1.
Referemce:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4660968/,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”