摘要：

The development of convenient synthesis routes to substituted cyclopentenones remains an area of great interest to the organic chemist.1 The development of general preparations of 4,5-disubstituted 2-cyclopentenones (1) is especially intriguing due to the occurrance of this system in a variety of natural products and to its incompatibility with all but the mildest means of preparation as a result of its facile isomerization to the more stable 2,3-disubstituted isomers (2).

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