In 2022,Wang, Zheng-Hai; Wang, Dong-Hui published an article in Organic Letters. The title of the article was 《Cu-Catalyzed Synthesis of Benzoxazole with Phenol and Cyclic Oxime》.Electric Literature of C7H8O2 The author mentioned the following in the article:
A Cu-catalyzed straightforward synthesis of benzoxazoles I [R = 5-iPr, 5-NHAc, 7-Bn, etc.; Ar = Ph, 1-naphthyl, 2-furyl, etc.] from free phenols and cyclic oxime esters was reported. The mild reaction conditions tolerate various electron-withdrawing and electron-donating functional groups on both substrates, affording benzoxazoles in moderate to good yields. With this protocol, large-scale syntheses of Ezutromid and Flunoxaprofe in one or two steps were demonstrated. A catalytic mechanism, which included Cu-catalyzed amination via inner-sphere electron transfer and consequent annulation, was proposed. In addition to this study using m-Methoxyphenol, there are many other studies that have used m-Methoxyphenol(cas: 150-19-6Electric Literature of C7H8O2) was used in this study.
m-Methoxyphenol(cas: 150-19-6) may be used in synthesis of:C(4) symmetric calix[4]resorcinarene, 2-nitroso-5-methoxyphenol, 6-methoxy-2(3H)-benzoxazoloneElectric Literature of C7H8O2
Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem