Fig. 1.
a Synthetic route of 1-chloro-3-benzophenone-5,5-dimethylhydantoin (Cl-BPDMH); b FTIR spectra of BP-Br, DMH, BPDMH, Cl-BPDMH; 1H-NMR spectra of c BPDMH and d Cl-BPDMH
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