Abstract

A new chiral fluorescent BINOL boronic acid 1 has been synthesized. The chiral recognition properties of 1 are drastically different from BINOL boronic acid c. Sensor 1 shows improved enantioselectivity as well as chemoselectivity toward sugar alcohols, such as d-sorbitol and d-mannitol.The enantioselectivity of sensor 1 toward d-sorbitol ( K R / K S ) is 1:35 (pH 9.0), and the chemoselectivity for d-sorbitol/ d-mannitol is 20:1.

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