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View article: How Big is the Pinacol Boronic Ester as a Substituent?
How Big is the Pinacol Boronic Ester as a Substituent? Open
The synthetically versatile pinacol boronic ester group (Bpin) is generally thought of as a bulky moiety because of the two adjacent quaternary sp 3 ‐hydribized carbon atoms in its diol backbone. However, recent diastereoselective reaction…