Pd-catalyzed sequential reactions via allene intermediate for the synthesis of polycyclic frameworks containing 2,3-dihydrofuran units.
نویسندگان
چکیده
A stepwise process involving Sonogashira coupling, propargyl allenyl isomerization, and consecutive [4 + 2] cyclization has been realized, leading to an efficient synthesis of polycyclic compounds containing a 2,3-dihydrofuran unit. Most attractive for synthetic interest is the finding that up to four stereogenic centers could be generated in one step with high stereoselectivity.
منابع مشابه
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ورودعنوان ژورنال:
- Organic letters
دوره 10 15 شماره
صفحات -
تاریخ انتشار 2008