Abstract
5a-Amino-5aH,11H-chromeno[2,3-b]chromene-11a(12H)-carbonitriles were synthesized from malono-nitrile and o-quinone methides, generated in situ by the thermolysis of phenolic Mannich bases in the presence of 1,8-diazabicyclo[5.4.0]undec-7-ene. It was also shown that this heterocyclic system can be obtained from 2-amino-4H-chromene-3-carbonitriles and the aforementioned o-quinone methides.
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.
