In general, if the atoms that make up the ring contain heteroatoms, such rings become heterocycles, and organic compounds containing heterocycles are called heterocyclic compounds. An article called Lewis acid-catalyzed [4+2] annulation between propargylic alcohols with benzo[d]isoxazoles, published in 2017, which mentions a compound: 271-95-4, Name is 1,2-Benzisoxazole, Molecular C7H5NO, Quality Control of 1,2-Benzisoxazole.
An unprecedented copper(II) trifluoromethanesulfonate-catalyzed [4+2] cascade annulation of propargylic alcs. with benzo[d]isoxazoles proceeded through a sequential ring opening/Meyer-Schuster rearrangement/intermol. cyclization. This protocol tolerated a broad variety of functional groups, offers a versatile, modular and atom-economical access to a new class of fascinating quinoline derivatives in good yields under mild conditions. The transformation could be scaled up to a gram scale efficiently, thus highlighting the synthetic utility of this methodol.
This literature about this compound(271-95-4)Quality Control of 1,2-Benzisoxazolehas given us a lot of inspiration, and I hope that the research on this compound(1,2-Benzisoxazole) can be further advanced. Maybe we can get more compounds in a similar way.
Reference:
Highly efficient and robust molecular ruthenium catalysts for water oxidation,
Catalysts | Special Issue : Ruthenium Catalysts – MDPI