Mechanochemical Bis-Spirocyclopropanation Reaction and Ring Rearrangement to 1-Oxaspiro[4.5]decadienones
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Bis-spirocyclopropanation is a very important reaction, which has been less explored. Herein, we describe a bis-spirocyclopropanation reaction from p-quinone methides and readily available active methylene compounds under mechanochemical liquid-assisted grindi... ...
