Liao, Zhehui published the artcileCopper-Catalyzed Asymmetric Synthesis of Bicyclo[3.n.1]alkenones, Category: benzoxazole, the publication is Journal of Organic Chemistry (2021), 86(7), 5388-5400, database is CAplus and MEDLINE.
A series of highly strained bicyclo[3.n.1]alkenones such as I (R = Me, Et, i-Pr) have been successfully constructed in good to excellent enantioselectivities and moderate to good yields by copper-catalyzed formal [3+3] cycloaddition reaction of 2-oxocycloalkanecarboxylates and aryl vinyl ketones or arylethenyl vinyl ketones via nonracemic oxoalkyl-substituted oxocycloalkanecarboxylates such as II (R = Me, Et, i-Pr). The cycloadducts were selectively converted into various valuable bicyclic ring systems holding considerable potential for the construction of natural and bioactive compounds containing a [3.n.1] moiety.
Journal of Organic Chemistry published new progress about 1239015-11-2. 1239015-11-2 belongs to benzoxazole, auxiliary class TOX Ligands, name is (3aS,3a’S,3a”S,8aR,8a’R,8a”R)-2,2′,2″-(Propane-1,2,2-triyl)tris(8,8a-dihydro-3aH-indeno[1,2-d]oxazole), and the molecular formula is C33H29N3O3, Category: benzoxazole.
Referemce:
https://en.wikipedia.org/wiki/Benzoxazole,
Benzoxazole | C7H5NO – PubChem