The author of 《Enantioselective dearomative [3+2] cycloaddition of 2-nitrobenzofurans with aldehyde-derived Morita-Baylis-Hillman carbonates》 were Yang, Xin-He; Li, Jian-Ping; Wang, Dong-Chao; Xie, Ming-Sheng; Qu, Gui-Rong; Guo, Hai-Ming. And the article was published in Chemical Communications (Cambridge, United Kingdom) in 2019. COA of Formula: C8H8O3 The author mentioned the following in the article:
The phosphine-catalyzed asym. dearomative [3+2] cycloaddition of 2-nitrobenzofurans with aldehyde-derived Morita-Baylis-Hillman (MBH) carbonates or allenoate was developed. The reaction with MBH carbonates resulted in a series of cyclopentabenzofurans containing three contiguous stereocenters with good to high yields, diastereoselectivities and enantioselectivities. The use of allenoate also gave the target product with moderate enantioselectivity. In the experiment, the researchers used many compounds, for example, 2-Hydroxy-4-methoxybenzaldehyde(cas: 673-22-3COA of Formula: C8H8O3)
2-Hydroxy-4-methoxybenzaldehyde(cas: 673-22-3) is the main component of root bark essential oil of Periploca sepium Bunge. It is a potential tyrosinase inhibitor present in African medicinal plants. 2-Hydroxy-4-methoxybenzaldehyde was used in the synthesis of Schiff base ligand.COA of Formula: C8H8O3
Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem