Abstract
Copper is one of the most abundant metals on Earth, and although it is mainly used in other fields, copper catalysis is also widely used in preparative organic syntheses. As copper production has recently exceeded a yearly amount of 20 million tons, using minerals instead of pure copper compounds can lower the need for such processes and can lead to more economical and environmentally friendly procedures. Such a method is the subject of our present study in which the preparation of 2-substituted benzoxazoles and benzothiazoles is presented from inexpensive starting materials in a simple setup, in the presence of naturally occurring copper-containing minerals. A total of 7 readily available minerals were tested in our model reaction and the reaction was feasible with all of them. With our method, a wide variety of benzoxazoles and benzothiazoles were prepared in good yields and high purity. The reaction could be carried out regardless of the origin of the minerals.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
