An expedient radical based approach to difluorophosphonate analogues of thionucleosides
摘要:
An expedient approach to difluorophosphonate analogues of thionucleosides of general structure 1 is described; the key step is a radical xanthate transfer chain reaction on diethyl 1,1-difluoro-3-butenylphosphonate. (C) 1998 Elsevier Science Ltd. All rights reserved.
A divergent approach to highly substituted benzothiepinones and to 2,3-dihydrothieno[2,3-b]thiopyran-4-ones
摘要:
The radical addition-transfer of S-(2-fluoro-phenacyl)xanthates can be used to construct rapidly benzothiepinones, including libraries of complex aza-bridged derivatives, and highly functionalized 2,3-dihydrothieno[2,3-b]thiopyran-4-ones. (C) 2010 Elsevier Ltd. All rights reserved.