Читать книгу Recent Advances in Polyphenol Research - Группа авторов - Страница 24

The multistate of chemical species followed by anthocyanins is not restricted to this family of compounds. Besides those of natural origin such as anthocyanidins and deoxyanthocyanidins, anthocyanins have been a source of bio‐inspiration for the synthesis of new derivatives that permit us to achieve complexity at the bottom, through this multistate of chemical species. The multistate of chemical species can be operated by pH changes, light, temperature, and host‐guest chemistry. The light response is particularly challenging, since there are two photochromic systems: (i) the ring opening of the hemiketal to produce cis‐chalcone, and (ii) cis‐trans isomerization of the chalcones. The multistate response can be modulated by host‐guest chemistry, increasing the potentialities of the system as photochromic materials, or in the domain of the health sciences.