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39 it was illustrated how a second copper atom could stabilize the cycloaddition transition state as well as the following intermediate, explaining the observed second order dependence of copper on the rate. In the current study we will mainly discuss mononuclear copper acetylides, since the interest is to compare the reactivity of N-sulfonyl azides to the N-alkyl analogues (Figure Presented)
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39 it was illustrated how a second copper atom could stabilize the cycloaddition transition state as well as the following intermediate, explaining the observed second order dependence of copper on the rate. In the current study we will mainly discuss mononuclear copper acetylides, since the interest is to compare the reactivity of N-sulfonyl azides to the N-alkyl analogues (Figure Presented)
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-1). This further shows that stronger σ-donors favor dicoordinate copper(I) centers.
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-1). This further shows that stronger σ-donors favor dicoordinate copper(I) centers.
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