《Synthesis of Heterobiaryl 4-Aryl Furans through a Base-Promoted Decarboxylative Propargylation/Cycloisomerization Annulation》 was written by Wang, Sasa; Song, Meimei; Li, Xiuguang; Huang, Yunhong; Zhao, Tingxiang; Wei, Zhuoji; Lan, Yanyun; Tan, Haibo. COA of Formula: C7H12O3 And the article was included in Organic Letters in 2020. The article conveys some information:
A transition-metal-free synthesis of heterobiaryl 4-aryl furans through a base-promoted decarboxylative propargylation/cycloisomerization annulation of ethynyl benzoxazinanones and readily accessible β-keto esters or 1,3-diketones has been developed. A series of novel heterobiaryl 4-aryl furans were accessed efficiently in the presence of base under mild reaction conditions. This protocol is significant for probing the reaction mechanism of ethynyl benzoxazinanones and even other propargylic compounds In the experimental materials used by the author, we found Ethyl 3-oxopentanoate(cas: 4949-44-4COA of Formula: C7H12O3)
Ethyl 3-oxopentanoate(cas: 4949-44-4) belongs to ketone compounds. They are most widely used as solvents, especially in industries manufacturing explosives, lacquers, paints, and textiles. Ketones are also used in tanning, as preservatives, and in hydraulic fluids.COA of Formula: C7H12O3
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics