Tag: 360.3595

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.Application of 36886-76-7 This article mentions the following:

Zn_1-xTi_xO 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 Zn_1-xTi_xO 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, 3′,6′-Dimethoxy-3H-spiro[isobenzofuran-1,9′-xanthen]-3-one (cas: 36886-76-7Application of 36886-76-7).

3′,6′-Dimethoxy-3H-spiro[isobenzofuran-1,9′-xanthen]-3-one (cas: 36886-76-7) belongs to benzofurans derivatives. Benzofuran derivatives have shown many biological activities, including antifungal and antimicrobial properties, and acting as antagonists of H3 receptors and angiotensin II. Benzofurans are stable towards alkali and readily polymerize on treatment with sulfuric acid, due to which they are useful for the preparation of low cost chemically relatively inert resins.Application of 36886-76-7

Referemce:
Benzofuran – Wikipedia,
Benzofuran | C8H6O – PubChem

Visible-light-triggered direct benzoyloxylation of electron-rich arenes at room temperature without chelation assistance was written by Rao, Honghua;Wang, Ping;Li, Chao-Jun. And the article was included in European Journal of Organic Chemistry in 2012.Recommanded Product: 3′,6′-Dimethoxy-3H-spiro[isobenzofuran-1,9′-xanthen]-3-one This article mentions the following:

A Ru(II) photocatalytic method was developed for the direct mono-benzoyloxylation of electron-rich aromatic and heteroaromatic systems even with an excess amount of benzoyl peroxide. The reaction was conducted at room temperature under visible light. The direct Ar(C-H) benzoyloxylations occur without the assistance of any directing groups and can also tolerate various functional groups that already showed diverse reactivities in transition-metal catalysis. In the experiment, the researchers used many compounds, for example, 3′,6′-Dimethoxy-3H-spiro[isobenzofuran-1,9′-xanthen]-3-one (cas: 36886-76-7Recommanded Product: 3′,6′-Dimethoxy-3H-spiro[isobenzofuran-1,9′-xanthen]-3-one).

3′,6′-Dimethoxy-3H-spiro[isobenzofuran-1,9′-xanthen]-3-one (cas: 36886-76-7) belongs to benzofurans derivatives. Benzofuran derivatives are one of the most important oxygen-containing heterocycles. Benzofurans are stable towards alkali and readily polymerize on treatment with sulfuric acid, due to which they are useful for the preparation of low cost chemically relatively inert resins.Recommanded Product: 3′,6′-Dimethoxy-3H-spiro[isobenzofuran-1,9′-xanthen]-3-one

Referemce:
Benzofuran – Wikipedia,
Benzofuran | C8H6O – PubChem

Supplemental studies on the relationship between structure and spectrum of fluorescein was written by Chen, Sheng-Chih;Nakamura, Hiroshi;Tamura, Zenzo. And the article was included in Chemical & Pharmaceutical Bulletin in 1979.Synthetic Route of C22H16O5 This article mentions the following:

The relationship between the structure and spectrum of fluorescein I in aqueous solution was investigated by comparing the absorption and fluorescence properties of I with those of monomethylfluorescein, dimethylfluorescein, and fluorescein Me ester (II). Fluorescein was predominantly present in its univalent cation, neutral lactonoid (III), univalent anion and bivalent anion (IV) forms at pH < 1, pH 3, pH 5-6 and pH > 8, resp. All form except III were fluorescent and IV fluoresced most intensely. The neutral quinonoid form was not detected in aqueous solution, contrary to results of previous authors. In the experiment, the researchers used many compounds, for example, 3′,6′-Dimethoxy-3H-spiro[isobenzofuran-1,9′-xanthen]-3-one (cas: 36886-76-7Synthetic Route of C22H16O5).

3′,6′-Dimethoxy-3H-spiro[isobenzofuran-1,9′-xanthen]-3-one (cas: 36886-76-7) belongs to benzofurans derivatives. Benzofuran derivatives are one of the most important oxygen-containing heterocycles. Substituted benzofurans find applications such as fluorescent sensors, oxidants, in drug discovery, and in another field of chemistry and agriculture.Synthetic Route of C22H16O5

Referemce:
Benzofuran – Wikipedia,
Benzofuran | C8H6O – PubChem

Fluoran derivatives. IV. Electronic absorption and emission spectra of mono- and disubstituted derivatives of 3,3-diphenylphthalide and fluoran was written by Gronowska, Janina;Rakowska, Tersa;Walerys, Henryk. And the article was included in Roczniki Chemii in 1973.Name: 3′,6′-Dimethoxy-3H-spiro[isobenzofuran-1,9′-xanthen]-3-one This article mentions the following:

The effect of Me, OMe, and OH groups on the electronic absorption spectra in 96% EtOH and absorption and emission spectra in 80% H2SO4 was determined for I (R = H, Me; R1 = H, Me, OMe, OH) and II (R,R1 = H, Me, OMe, OH). I were prepared by condensation of the corresponding aroylbenzoic acids with a substituted phenol in the presence of anhydrous ZnCl2 at 95-105°; demethylation and formation of phenolic products was observed at higher temperatures In the experiment, the researchers used many compounds, for example, 3′,6′-Dimethoxy-3H-spiro[isobenzofuran-1,9′-xanthen]-3-one (cas: 36886-76-7Name: 3′,6′-Dimethoxy-3H-spiro[isobenzofuran-1,9′-xanthen]-3-one).

3′,6′-Dimethoxy-3H-spiro[isobenzofuran-1,9′-xanthen]-3-one (cas: 36886-76-7) belongs to benzofurans derivatives. Benzofurans are compounds with a planar structure having 10 pi electrons that include the lone pair on oxygen atom, which makes it more susceptible to electrophilic attack. Benzofurans are stable towards alkali and readily polymerize on treatment with sulfuric acid, due to which they are useful for the preparation of low cost chemically relatively inert resins.Name: 3′,6′-Dimethoxy-3H-spiro[isobenzofuran-1,9′-xanthen]-3-one

Referemce:
Benzofuran – Wikipedia,
Benzofuran | C8H6O – PubChem

Polarization and color-change with the adsorption of surface-active substances. III was written by Weitz, Ernst;Schmidt, Fritz;Singer, Josef. And the article was included in Zeitschrift fuer Elektrochemie und Angewandte Physikalische Chemie in 1940.Safety of 3′,6′-Dimethoxy-3H-spiro[isobenzofuran-1,9′-xanthen]-3-one This article mentions the following:

Ph₃COMe is adsorbed with a yellow color by silica gel (I) or by acid-washed Al₂O₃ (II) from its colorless benzene solution, and decolorized by alc. [Me₂NC₆H₄]₃COMe is adsorbed from its colorless benzene solution by I and by Brockmann’s Al₂O₃ (III) with an intense blue-violet color. Ph₃COCOMe is adsorbed by I with an intense brown-tinged yellow, by III with a pale yellow. Dimethylaniline phthalein (IV), colorless in benzene solution, gives an intense green-blue adsorbate on I, III, Al(OH)₃, kaolin, AlPO₄ and Ca₃(PO₄)₂. If acetone vapors are poured over the blue adsorbate on kaolin, the color vanishes and returns when the vapor is dispersed. The colorless compound is malachite green lactone, the colored substance malachite green betaine. Powdered IV is adsorbed as the colored betaine by the adsorbents above, and the colored adsorbate is formed when the fused lactone is stirred with clay or kieselguhr, but not with KCl. The lactone form of rhodamine B is polarized to the colored (intensely red) form by all those substances that cause a similar transformation in IV, and in addition by CaCO₃, MgO, paraformaldehyde and starch, from benzene solution, and also by rubbing with KCl, Na₂SO₄.10H₂O, Na₂CO₃.10H₂O, Na₂S₂O₃.5H₂O, paraformaldehyde, sugar or urea. Also tabulated is the color of the benzene solution, of the adsorbate on I, II and III, and the ease of elution with alc. for p-hydroxydiphenylphthalide, phenolphthalein, phenolphthalein di-Me ether, tetrabromophenolphthalein, fluorescein (in ether), fluorescein diacetate, fluorescein mono-Me ether, fluoroescein di-Me ether, benzylidene acetone, benzylideneacetophenone, cinnamylideneacetone, cinnamylideneacetophenone, anisylideneacetophenone and ω-nitrophenylethylene. The lactone-betaine tautomerism of thymol blue indicator is strikingly affected by temperature change. The unsaturated hydrocarbon 1,8-diphenyloctatetraene is adsorbed by I with a green color. In the experiment, the researchers used many compounds, for example, 3′,6′-Dimethoxy-3H-spiro[isobenzofuran-1,9′-xanthen]-3-one (cas: 36886-76-7Safety of 3′,6′-Dimethoxy-3H-spiro[isobenzofuran-1,9′-xanthen]-3-one).

3′,6′-Dimethoxy-3H-spiro[isobenzofuran-1,9′-xanthen]-3-one (cas: 36886-76-7) belongs to benzofurans derivatives. Benzofuran derivatives are one of the most important oxygen-containing heterocycles. They are also prone to polymerisation in the presence of concentrated mineral acids and Lewis acids.Safety of 3′,6′-Dimethoxy-3H-spiro[isobenzofuran-1,9′-xanthen]-3-one

Referemce:
Benzofuran – Wikipedia,
Benzofuran | C8H6O – PubChem

Facile and Large-scale Fabrication of Biodegradable Thermochromic Fibers Based on Poly(lactic acid) was written by Chen, Xiao-Xiong;Yu, Jin-Chao;Chen, Kang;Ji, Peng;Chen, Xiang-Ling;Pan, Zhi-Juan. And the article was included in Chinese Journal of Polymer Science in 2022.SDS of cas: 36886-76-7 This article mentions the following:

To investigate the feasibility of developing biobased and biodegradable thermochromic fibers, poly(lactic acid) (PLA) fibers with visual temperature indicator functionality were fabricated using a scalable melt spinning technique (spinning speed 800 m/min), where PLA and thermochromic microcapsules were used as fiber-forming polymers and color indicators, resp. The effect of thermochromic microcapsules on the mech. properties and reversible color-changing function of PLA fibers was systematically investigated to achieve high tenacity and sensitive color-changing function. The difference in the fiber performance was connected to changes in the multilayer structure. The results show that PLA fibers exhibit excellent tenacity of 3.7-4.7 cN/dtex and reversible and stable thermochromic behavior over 31°C. The high fraction of mesophase within TPLA-1 fiber plays an important role in its tenacity. Meanwhile, the low-concentration of microcapsules (∼1 weight%) with good dispersion could act as a nucleating agent inside the PLA matrix and contribute to the formation of microcrystals in the amorphous between primary lamellae, which is also beneficial to maintain the tenacity of the fibers. The agglomeration of high-concentration microcapsules within PLA fibers hampered the formation of mesophase, resulting in a decrease in fiber tenacity. Aside from the content of microcapsules, the agglomeration of high-concentration microcapsules (>5 weight%) is the main reason that limits the substantial increase in fiber color depth. This study opens up new possibilities for degradable thermochromic fibers produced using standard industrial spinning technol. In the experiment, the researchers used many compounds, for example, 3′,6′-Dimethoxy-3H-spiro[isobenzofuran-1,9′-xanthen]-3-one (cas: 36886-76-7SDS of cas: 36886-76-7).

3′,6′-Dimethoxy-3H-spiro[isobenzofuran-1,9′-xanthen]-3-one (cas: 36886-76-7) belongs to benzofurans derivatives. Benzofuran derivatives have shown many biological activities, including antifungal and antimicrobial properties, and acting as antagonists of H3 receptors and angiotensin II. Benzofurans have also made significant and distinctive contributions to biology. They exhibit several biological activities that range from antioxidant, antitubercular, antiplasmodial, insecticidal.SDS of cas: 36886-76-7

Referemce:
Benzofuran – Wikipedia,
Benzofuran | C8H6O – PubChem