Natural products Bamford-Stevens reaction

The aprotic Bamford-Stevens reaction has been utilized for the development of a methodology towards 1,2-carbonyl transposition in natural product synthesis. The example in Scheme 8 illustrates the regiocontrolled alkene formation for the synthesis of hirsutic acid. ... 

The groups of de Meijere and Kostikov utilized the Bamford-Stevens reaction whilst demonstrating the dirhodium(II) tetraacetate catalyzed (chlorovinyl)cyclopropanation of enol ethers and dienol ethers. The resulting vinylcyclopropanes 17 play an important role as precursors to cyclopentenes en route to cyclopentanoid natural products."... 

Chen s stereospecific total synthesis of cycloeudesmol 48 started with the hydrazone 46, which was converted to the allylic alcohol 47 by the Bamford-Stevens reaction followed by DMF trapping of the vinyl anion and sodium borohydride reduction. This allylic alcohol 47 was then taken on through a further ten steps to yield the natural product cycloeudesmol 48. 

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