Abstract
An efficient synthesis of spiro-oxindoles is accomplished by a one-pot three-component condensation of isatin, malononitrile or cyanoacetic ester and naphthol in the presence of L-proline as a catalyst. This method is of great value because of its shorter reaction times, high yield, and easy processing. An efficient one-pot procedure allows the synthesis of various spiro-oxindole derivatives with fused 4H-chromenes catalysed by L-proline in high yields under mild conditions.
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.
