Ti(IV) doping: An effective strategy to boost Lewis acidic performance of ZnO catalyst in fluorescein dye synthesis was written by Jadhav, Nirajkumar H.;Shinde, Dnyaneshwar R.;Sakate, Sachin S.;Rasal, Nishant K.;Pawar, Ramdas A.. And the article was included in Catalysis Communications in 2019.Formula: C20H10Cl2O5 This article mentions the following:
Zn1-xTixO NPs were efficiently synthesized using a simple solution free mechanochem. method. The synthesized ZnO and Ti(IV)-doped ZnO catalysts are exhibited polycrystallinity, a hexagonal crystal structure, and roughly spherical agglomerates. The surface areas of the Zn1-xTixO catalysts were pos. correlated with the doping percentage of Ti(IV), which also enhanced the Lewis acidity of the NPs. The catalysts exhibited excellent activity during the synthesis of fluorescein dyes. This methodol. was also extended to sulfone-fluorescein dye synthesis. In the experiment, the researchers used many compounds, for example, 2′,7′-Dichloro-3′,6′-dihydroxy-3H-spiro[isobenzofuran-1,9′-xanthen]-3-one (cas: 76-54-0Formula: C20H10Cl2O5).
2′,7′-Dichloro-3′,6′-dihydroxy-3H-spiro[isobenzofuran-1,9′-xanthen]-3-one (cas: 76-54-0) belongs to benzofurans derivatives. Benzofuran is the “”parent”” of many related compounds with more complex structures. For example, psoralen is a benzofuran derivative that occurs in several plants. They are also prone to polymerisation in the presence of concentrated mineral acids and Lewis acids.Formula: C20H10Cl2O5
Referemce:
Benzofuran – Wikipedia,
Benzofuran | C8H6O – PubChem