Simultaneous Synthesis of Both Rings of Chromenes via a Benzannulation/o-Quinone Methide Formation/Electrocyclization Cascade
نویسندگان
چکیده
منابع مشابه
Simultaneous synthesis of both rings of chromenes via a benzannulation/o-quinone methide formation/electrocyclization cascade.
A new route to the chromene ring system has been developed which involves the reaction of an α,β-unsaturated Fischer carbene complex of chromium with a propargyl ether bearing an alkenyl group on the propargylic carbon. This transformation involves a cascade of reactions that begins with a benzannulation reaction and is followed by the formation of an o-quinone methide, and finally results in t...
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ژورنال
عنوان ژورنال: Journal of the American Chemical Society
سال: 2011
ISSN: 0002-7863,1520-5126
DOI: 10.1021/ja210655g