Synthesis of 2-Chromanone-fused [3.2.0] Bicycles through a Phosphine-mediated Tandem [3+2] Cyclization/Intramolecular Wittig Reaction
Keyword(s):
A phosphine-mediated tandem [3+2] cyclization/intramolecular Wittig reaction of 3-aroylcoumarin with alkynone is described. The high efficiency of tandem process allows the synthesis of 2-chromanone-fused bicyclo[3.2.0]heptenones in moderate to high yields...
1993 ◽
Vol 58
(17)
◽
pp. 4564-4566
◽
2005 ◽
Vol 2005
(11)
◽
pp. 733-735
◽
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