Figure 1: Cross-metathesis to make cis-alkenyl halides. | Nature

Figure 1: Cross-metathesis to make cis-alkenyl halides.

From: No double bond left behind

Figure 1

a, In cross-metathesis, carbon–carbon double bonds (C = C bonds) are redistributed between two molecules. Dots indicate carbon atoms; R1 and R2 represent any chemical group. b, Hoveyda and colleagues1 report that a molybdenum catalyst allows alkenes (red) to react with 1,2-dihaloethene reagents (blue) to produce cis-alkenyl halides as the main products; for simplicity, side products are not shown. Et, ethyl group; Ph, phenyl group.

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