Photo Racemization and Polymerization of (R)-1,1′-Bi(2-naphthol)
Abstract(R)-1,1’-Bi(2-naphthol) ((R)-BINOL) in an acetonitrile solution lost optical activity upon irradiation with an Hg–Xe lamp. HPLC resolution of the product indicated that (R)-BINOL was racemized upon irradiation, and SEC analysis suggested that a polymeric product was formed in the course of racemization. It is proposed that polymerization of BINOL can occur before it is racemized and that a unit in a polymer derived from BINOL may lose its optical activity afterwards due to in-chain racemization and/or reduction. The polymeric products seem to consist not only of BINOL residues but also of residues derived from acetonitrile as well as those derived through reduction of BINOL. View Full-Text
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Zhang, Z.; Wang, Y.; Nakano, T. Photo Racemization and Polymerization of (R)-1,1′-Bi(2-naphthol). Molecules 2016, 21, 1541.
Zhang Z, Wang Y, Nakano T. Photo Racemization and Polymerization of (R)-1,1′-Bi(2-naphthol). Molecules. 2016; 21(11):1541.Chicago/Turabian Style
Zhang, Zhaoming; Wang, Yue; Nakano, Tamaki. 2016. "Photo Racemization and Polymerization of (R)-1,1′-Bi(2-naphthol)." Molecules 21, no. 11: 1541.
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