Abstract
3-(Trimethylsilyl)propyne iminium salts 6a-c and 2-(trimethylsilyl)ethynyl-1,3-benzothiazolium triflate 12 are suitable dienophiles for Diels-Alder reactions with buta-1,3-dienes, cyclopentadiene, cyclohexa-1,3-diene, and anthracene. Tri-tert-butylazete reacts with propyne iminium salts 6a,b to form Dewarpyridines 15a,b. Thermal isomerization of 15b generates the sterically overcrowded pentasubstituted pyridine 16 which features a boat-shaped pyridine ring with the highest deviation from planarity so far reported.
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.
