Predict the Major Organic Product Formed After Alkene Metathesis in the Presence

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The Answer is In an alkene metathesis reaction, two alkenes are split and rearranged. In this starting material, both alkenes are part of the same molecule, so a ring closing metathesis occurs. The by-product is ethylene gas, which drives the reaction to completion.

In an alkene metathesis reaction, two alkenes are split and rearranged. In this starting material, both alkenes are part of the same molecule, so a ring closing metathesis occurs. The by-product is ethylene gas, which drives the reaction to completion. The resulting product is a cyclopentene ring with a methoxy substituent. Let's check that this matches the <sup>13</sup>C NMR data. The molecule is symmetric, with a plane of symmetry bisecting the alkene and methoxy group. The two alkene carbons are represented by the peak at 128 ppm. The remaining ring carbons are represented by the peak at 40 ppm. The carbons directly bonded to the oxygen are represented by the peaks at 57 and 77 ppm.

The resulting product is a cyclopentene ring with a methoxy substituent. Let's check that this matches the ¹³C NMR data. The molecule is symmetric, with a plane of symmetry bisecting the alkene and methoxy group. The two alkene carbons are represented by the peak at 128 ppm. The remaining ring carbons are represented by the peak at 40 ppm. The carbons directly bonded to the oxygen are represented by the peaks at 57 and 77 ppm.

Predict the Major Organic Product Formed After Alkene Metathesis in the Presence

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Predict the Major Organic Product Formed After Alkene Metathesis in the Presence

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