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    • Preparation and Properties of 2-Methyleneoxetanes 

      Dollinge, Lisa M.; Ndakala, Albert J.; Hashemzadeh, Mehrnoosh; Wang, Gan; Wang, Ying; Martinez, Isamir; Arcari, Joel T.; Galluzzo, David J.; Howell, Amy R. (© 1999 American Chemical SocietySchool of Physical Sciences, 1999-08)
      The methylenation of â-lactones 5 with dimethyltitanocene provides a versatile, reliable, and highly chemoselective entry to 2-methyleneoxetanes 7. The conversion proceeds selectively in the presence of alkenes, unprotected ...