Cationic Palladium(II)-Catalyzed Highly Enantioselective Tandem Reactions of ortho-Boronate-Substituted Cinnamic Ketones and Internal Alkynes: A Convenient Synthesis of Optically Active Indenes was written by Zhou, Feng;Yang, Miao;Lu, Xiyan. And the article was included in Organic Letters in 2009.COA of Formula: C14H19BO4 The following contents are mentioned in the article:
Cationic palladium(II)-catalyzed tandem reactions of ortho-boronate-substituted cinnamic ketones and internal alkynes to yield optically active indenes, e.g., I, were developed in high yields and good enantioselectivities. This study involved multiple reactions and reactants, such as 5-Methoxy-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzaldehyde (cas: 1132669-90-9COA of Formula: C14H19BO4).
5-Methoxy-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzaldehyde (cas: 1132669-90-9) belongs to ethers. Esters perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Polyesters are important plastics, with monomers linked by ester moieties. Cyclic esters are called lactones, regardless of whether they are derived from an organic or inorganic acid. One example of an organic lactone is γ-valerolactone.COA of Formula: C14H19BO4
Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem