Abstract
Bicyclic oxazines are attractive compounds and valuable synthetic intermediates as they can be easily obtained by hetero Diels-Alder reactions between cyclic dienes and nitroso dienophiles. In particular, the more strained case (i.e. the [2.2.1]-cycloadduct) represents an interesting powerful combination of stability and reactivity as it can be transformed into highly densely functionalized cyclopentene derivatives by a variety of ring-opening reactions. Aim of this article is to summarize the methods used by various chemists for opening of bicyclic oxazines by the formation of a new carbon-carbon bond, to give highly substituted ring systems containing multiple stereocenters. Particular emphasis will be given to regio- and stereoselective procedures, including the most recent developments on less strained [2.2.2]-cycloadduct. Keywords: Bicyclic oxazines, hetero Diels-Alder cycloadducts, acylnitroso cycloadducts, metal catalyzed ring opening, copper, rhodium, Grignard reagents, organoboronic derivatives, stereoselective synthesis, allylation, cross metathesis.
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.
