On August 17, 2021, Lv, Zhong published a patent.Category: benzoxazole The title of the patent was Benzoxazole derivatives and preparation thereof. And the patent contained the following:
The present invention relates to benzoxazole derivatives and preparation thereof, which have the advantages of simple method, high yield, environmental friendliness, high purity and low cost. In particular, the present invention relates to benzoxazole derivatives with the general structure I, wherein R1 = hydrogen, alkyl, halogen, cyano, nitro, carboxyl, aromatic compounds and their derivatives or condensed rings; R2 = hydrogen, alkyl, halogen, cyano, nitro, carboxyl, aromatic compounds and derivatives or condensed rings. The benzoxazole derivative was prepared by the following steps: heterocyclization of carboxylic acid substitution and the 2-aminophenol substitution to obtain the final product. The benzoxazole derivatives can be used in drug synthesis, organic electroluminescence materials, polymer materials and organic flexible materials. The experimental process involved the reaction of 7-Bromo-2-phenylbenzo[d]oxazole(cas: 1268137-13-8).Category: benzoxazole
The Article related to benzoxazole derivative preparation aminophenol carboxylic acid heterocyclization, Heterocyclic Compounds (More Than One Hetero Atom): Oxazoles, Isoxazoles and other aspects.Category: benzoxazole
Referemce:
Benzoxazole – Wikipedia,
Benzoxazole | C7H5NO – PubChem