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A rapid and facile TLC staining method is reported for the qualitative analysis of boronic acids and related boron-containing derivatives. A red colouration is observed when boron is present due to the formation of a boron–curcumin complex. The structure of the phenylboronic acid–curcumin complex was confirmed using single crystal X-ray diffraction data.
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Lawrence et al. (2012) studied this question.
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