Reactions of 3-hydroxyvinyl selenones with alkoxides. Oxetane formation and fragmentation reactions

~%

~%

~%

~%

~83%

~%

~79%

~%

~%

~%

~%

~%

~%

~%

~%

~%

~60%

~%

~99%

~%

~57%

~%

~%

~%

~89%

~44%

~%

~%

~%

~63%

~68%

~%

~%

~86%

~%

~%

~%

~%

~%

~%

~%

~%

~%

~84%

~%