Mechanisms Deduced from Stereochemical Analyses

Common Mechanisms Deduced from Stereochemical Analyses 

One example of a stereochemical analysis that gives clear insight into the mechanism of electrophilic attack involves the reaction shown in Eq. 12.58. With early transition metals, the addition of X2 commonly gives retention of configuration. The X atom is delivered to the ligand from the frontside in a concerted four-centered transition state. 

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Common Mechanisms Deduced from Stereochemical Analyses... 

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