Abstract
A novel method for oxazine ring formation has been established using the reaction of kojic acid and aromatic aldehydes with methyl carbamate in the presence of p-toluenesulfonic acid in aqueous media to afford 4-aryl-6-hydroxymethyl-1,4-dihydropyrano[3,2-e][1,3] oxazine-2,8-diones in excellent yields. The present method does not involve any hazardous organic solvent. Therefore, this procedure could be classified as green chemistry.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: 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.