Category: 1193-11-9

Gladvin, G. published the artcileStudy Of active constituents from methanolic extract of watermelon fruit extract a comparative analysis of hybrid and wild cultivar, Formula: C6H12O2, the publication is Research Journal of Pharmaceutical, Biological and Chemical Sciences (2020), 11(5), 117-123, database is CAplus.

Plants are rich in active bio-mols., and these mols. synthesized as secondary metabolites for a wide range of physiol. functions, including defense and food reserve. These plant phytochems. belong to a wide range of categories, including steroids, alkaloids, phenolic compounds, terpenes, saponin, and resin, etc. Watermelon is fruit for the richest source of various bio-active compounds, including vitamins and minerals. Over a period of time numerous hybrid cultivars were designed for com. and large scale cultivation of watermelon. The key question arises among scientific platform for the active phytochems. present in the watermelon hybrid cultivar over wild type. The present study was aimed to carry out a comparative anal. of the presence of various active biomols. in watermelon Citrulus Lanatus hybrid and wild type. We have extracted active phytochems. using multiple solvents, including methanol, acetyl acetate, and chloroform. The methanolic extract was further characterized for active phytochems. using GC-MS for both hybrid and wild type cultivar. Based on phytochem. anal. and preliminary activity anal., i.e., the antimicrobial and antioxidant methanolic extract does possess a comparatively higher biol. activity and hence active biomols. The GC-MS anal. shows a wide range of phytochems., including Alkaloids, Phenolic compounds, Saponin, Quinone, and Coumarin in methanolic extract On the contrary, methanolic extract of wild type cultivar does possess flavonoid, saponnin and steroid, phenolic acids and glyco-conjugates, flavonoids and glyco-conjugates, metabolites of phenylpropanoid pathway, such as gingerol, cinnamic acid, p-coumaric acid, etc.; organic acids such as citric acid, iso-citrate, fumarate, etc.; carotenoid such as beta-carotene metabolism products, curcuminoids; curcubitacin E, monosaccharaides and oligosaccharides, amino acids such as Citrulline, saturated mono and polyunsaturated fatty acids, and compound lipids such as Ceramide and Sphinganine; nucleotide bases such as guanosine, uridine, etc. The study shows watermelon hybrid cultivar are rich in diverse phytochem. over wild type cultivar precisely methanolic extract

Research Journal of Pharmaceutical, Biological and Chemical Sciences published new progress about 1193-11-9. 1193-11-9 belongs to dioxole, auxiliary class Dioxolanes, name is 2,2,4-Trimethyl-1,3-dioxolane, and the molecular formula is C6H12O2, Formula: C6H12O2.

Referemce:
https://en.wikipedia.org/wiki/1,3-Benzodioxole,
Dioxole | C3H4O2 – PubChem

Krutskii, L. N. published the artcileReaction of 2-chloro-1,3,2-dioxaphospholanes and -phosphorinanes with 1,3-dioxacyclanes, Category: dioxole, the publication is Zhurnal Obshchei Khimii (1983), 53(7), 1525-32, database is CAplus.

The title reaction proceeds primarily via rearrangement of the intermediately formed spiro phosphorus salts, e.g. I (from II and III) and cleavage of the 1,3,2-dioxaphosphacyclane ring to give products, e.g. IV. Reaction of V (R¹ = Me, Et, CH₂Cl; R² = H, CH₂Cl) with ClCH₂OR³ (R³ = Pr, Bu) gave [Cl(CH₂)₃O](R¹R²CHO)P(O)CH₂OR³.

Zhurnal Obshchei Khimii published new progress about 1193-11-9. 1193-11-9 belongs to dioxole, auxiliary class Dioxolanes, name is 2,2,4-Trimethyl-1,3-dioxolane, and the molecular formula is C6H12O2, Category: dioxole.

Referemce:
https://en.wikipedia.org/wiki/1,3-Benzodioxole,
Dioxole | C3H4O2 – PubChem

Artz, William E. published the artcileVolatiles in a fat-based fat substitute model compound, esterified propoxylated glycerol soyate, Synthetic Route of 1193-11-9, the publication is Journal of Food Lipids (2001), 8(3), 191-204, database is CAplus.

Static headspace and GC/IR-MS (capillary gas-liquid chromatog., with an IR detector and a mass spectrometer), were used to collect, sep., identify, and quantitate the volatile products in the EPG-08 soyate sample, (esterified propoxylated glycerol, which is a model fat substitute compound with 8 mol of propylene oxide per mol. of glycerol), EPG-00 soyate (essentially trans-esterified soybean oil with no added propylene oxide), and a 50:50 (volume:volume) mixture of the 2 oil samples. Each sample was heated at ∼192 °C for 12 h/day until the oil contained ≥20% triacylglycerol polymer. The EPG-08 soyate samples were heated for 36 h, whereas the EPG-00 soyate and the 50:50 mix samples were heated for 48 h^–. The major volatile decomposition products found included hexanal, heptanals, trans-2-heptenal, trans-2-octenal, and trans,trans-2,4-decadienal. All of the volatiles detected in the oil samples were found previously in heated soybean oil, with the exception of 2,2,4-trimethyl-1,3-dioxolane, 2-ethyl-4-methyl-1,4-dioxolane, and acetoxy-acetone found in the EPG-08 soyate samples. The presence of many of the volatiles found with headspace anal., were confirmed using solid phase microextraction-GC/IR-MS.

Journal of Food Lipids published new progress about 1193-11-9. 1193-11-9 belongs to dioxole, auxiliary class Dioxolanes, name is 2,2,4-Trimethyl-1,3-dioxolane, and the molecular formula is C6H12O2, Synthetic Route of 1193-11-9.

Referemce:
https://en.wikipedia.org/wiki/1,3-Benzodioxole,
Dioxole | C3H4O2 – PubChem

Eliel, Ernest L. published the artcileCarbon-13 NMR spectra of saturated heterocycles. VIII. Tetrahydrofurans and 1,3-dioxolanes, Related Products of dioxole, the publication is Organic Magnetic Resonance (1979), 12(8), 461-6, database is CAplus.

¹³C NMR spectra were obtained for 17 Me- and Et-substituted tetrahydrofurans and 58 alkyl- and aryl-substituted 1,3-dioxolanes. Additive substituent parameters calculated for compounds containing recurring substituents were compared with similar parameters in cyclopentanes and 6-membered rings. The additivity of the parameters is good considering the conformational flexibility of 5-membered ring systems.

Organic Magnetic Resonance published new progress about 1193-11-9. 1193-11-9 belongs to dioxole, auxiliary class Dioxolanes, name is 2,2,4-Trimethyl-1,3-dioxolane, and the molecular formula is C6H12O2, Related Products of dioxole.

Referemce:
https://en.wikipedia.org/wiki/1,3-Benzodioxole,
Dioxole | C3H4O2 – PubChem

Kapkowski, Maciej published the artcileMono- and bimetallic nano-Re systems doped Os, Mo, Ru, Ir as nanocatalytic platforms for the acetalization of polyalcohols into cyclic acetals and their applications as fuel additives, Formula: C6H12O2, the publication is Applied Catalysis, B: Environmental (2018), 154-167, database is CAplus.

We report here that the Re/SiO₂ catalyst can be a suitable low-cost catalyst for processing polyols into acetals in solvent-free conditions with a high conversion rate and selectivity up to 100% in mild conditions. During a complex investigation, we broadly tested the blending potential of the acetals that were formed by measuring properties such as d., viscosity, isentropic compressibility, isobaric thermal expansion, cetane number and other parameters of both the crude additives and the blends that were prepared with petroleum diesel oil. The results indicate that the investigated acetals can generally be used for blending with petroleum diesel oil in order to obtain the valuable biofuels that are in great demand in the contemporary transportation industry due to the regulatory restrictions that have been introduced in order to protect the environment.

Applied Catalysis, B: Environmental published new progress about 1193-11-9. 1193-11-9 belongs to dioxole, auxiliary class Dioxolanes, name is 2,2,4-Trimethyl-1,3-dioxolane, and the molecular formula is C6H12O2, Formula: C6H12O2.

Referemce:
https://en.wikipedia.org/wiki/1,3-Benzodioxole,
Dioxole | C3H4O2 – PubChem

Bruice, Thomas C. published the artcileA search for carboxyl-group catalysis in ketal hydrolysis, Recommanded Product: 2,2,4-Trimethyl-1,3-dioxolane, the publication is Journal of the American Chemical Society (1967), 89(14), 3568-76, database is CAplus.

The pH-rate profiles for the hydrolysis of 19 1,3-dioxanes and 1,3-dioxolanes, seven of which were carboxyl substituted, were determined The rates of hydrolysis were not sensitive to the concentration of formate and acetate buffers at constant pH showing the compounds were not susceptible to intermol. general acid catalyzed hydrolysis. The log of the pseudo-first-order rate constants (kobsd) for the hydrolysis of all dioxolanes and dioxanes not substituted by carboxyl groups when plotted vs. pH provided linear plots of slope ∼-1.0 indicating the mechanism of hydrolysis is specific acid catalysis. For the carboxyl-substituted dioxolanes and dioxanes, the pH-log kobsd profiles are characterized by the superimposition of a plateau rate upon the specific acid catalyzed region, followed in the low acid region by a descending leg of approx. slope of -1.0. The plateau and second descending leg have kinetically equivalent interpretations as participation by the undissociated carboxyl group in the hydrolysis or the specific acid catalyzed hydrolysis of the carboxylate anion form of the ketals. The latter mechanism is correct on the basis that the log krate values for the calculated constants for specific acid catalyzed hydrolysis of the undissociated ketals (K-CO2H) and dissociated ketals (K-CO2-) exhibit no pos. deviations from Hammett plots (σ*) constructed from the rate constants for specific acid catalysis of the hydrolysis of ketals not containing carboxyl groups. Literature reports of the participation of neighboring carboxyl groups in the hydrolysis of acetals are discussed. 32 references.

Journal of the American Chemical Society published new progress about 1193-11-9. 1193-11-9 belongs to dioxole, auxiliary class Dioxolanes, name is 2,2,4-Trimethyl-1,3-dioxolane, and the molecular formula is C6H12O2, Recommanded Product: 2,2,4-Trimethyl-1,3-dioxolane.

Referemce:
https://en.wikipedia.org/wiki/1,3-Benzodioxole,
Dioxole | C3H4O2 – PubChem

Alvarez-Martin, Alba published the artcileInvestigation of volatile organic compounds in museum storage areas, Application of 2,2,4-Trimethyl-1,3-dioxolane, the publication is Air Quality, Atmosphere & Health (2021), 14(11), 1797-1809, database is CAplus.

This study investigates the complex mixture of volatile organic compounds (VOCs) released by and accumulated within a collection of historic medicinal, pharmaceutical, and cosmetic artifacts housed at the National Museum of American History (Smithsonian Institution). In recent years, staff have become concerned, both for the safety of the objects and for personnel working in the collection, about strong unremediated odors accumulating within several storage cabinets. Museum staff also wondered if non-odorous off-gassing might need remediation. Solid-phase microextraction combined with gas chromatog.-mass spectrometry anal. (SPME-GC-MS) was used to identify VOCs present in the storage room housing the collection. Over 160 compounds were detected and identified overall. Among these, 49 appeared to be directly related to ingredients used in the manufacture of many collection items. The results of the study suggest that SPME-GC-MS can be a strong tool for the rapid screening of multicomponent museum collections exhibiting off-gassing problems, before the pursuit of other more tedious anal. approaches. Addnl., the study reveals valuable insight into the characteristic volatile emission of historic medicinal, pharmaceutical, and cosmetic artifacts, increasing understanding of, and decision-making for, similar collections of objects. Eventually, it is hoped that this information can be used to inform mitigation strategies for the capture and reduction of VOCs in collections storage areas.

Air Quality, Atmosphere & Health published new progress about 1193-11-9. 1193-11-9 belongs to dioxole, auxiliary class Dioxolanes, name is 2,2,4-Trimethyl-1,3-dioxolane, and the molecular formula is C6H12O2, Application of 2,2,4-Trimethyl-1,3-dioxolane.

Referemce:
https://en.wikipedia.org/wiki/1,3-Benzodioxole,
Dioxole | C3H4O2 – PubChem

Wang, Xianhua published the artcileComparative study of wet and dry torrefaction of corn stalk and the effect on biomass pyrolysis polygeneration, Application In Synthesis of 1193-11-9, the publication is Bioresource Technology (2018), 88-97, database is CAplus and MEDLINE.

Wet torrefaction (WT) possesses some advantages over dry torrefaction (DT). In this study, a comparative anal. of torrefied corn stalk from WT and DT was conducted along with an investigation of their pyrolysis properties under optimal conditions for biomass pyrolysis polygeneration. Compared with DT, WT removed 98% of the ash and retained twice the amount of hydrogen. The impacts of DT and WT on the biomass macromol. structure was also found to be different using two-dimensional perturbation correlation IR spectroscopy (2D-PCIS). WT preserved the active hydroxyl groups and rearranged the macromol. structure to allow cellulose to be more ordered, while DT removed these active hydroxyl groups and formed inter-crosslinking structures in macromols. Correspondingly, the bio-char yield after WT was lower than DT but the bio-char quality was upgraded due to high ash removal. Furthermore, higher bio-oil yield, higher sugar content, and higher H₂ generation, were obtained after WT.

Bioresource Technology published new progress about 1193-11-9. 1193-11-9 belongs to dioxole, auxiliary class Dioxolanes, name is 2,2,4-Trimethyl-1,3-dioxolane, and the molecular formula is C5H5BrN2, Application In Synthesis of 1193-11-9.

Referemce:
https://en.wikipedia.org/wiki/1,3-Benzodioxole,
Dioxole | C3H4O2 – PubChem

Scharf, Hans D. published the artcileSynthesis of furan derivatives from 4-benzoyloxy-1,3-dioxolane derivatives, Formula: C6H12O2, the publication is Angewandte Chemie (1976), 88(21), 718, database is CAplus.

Pyrolysis of dioxolanes I [R = H, R1 = Me, R2 = H, R1 = Et, R2 = Me, R1R2 = (CH2)3, (CH2)4; R = R1 = Me, R2 = H] at 230° 1.5 hr gave o-MeC6H4CO2H and 70-90% furans II. At 400°/10-3 Torr, 30-5% dioxolanes III were obtained but no II.

Angewandte Chemie published new progress about 1193-11-9. 1193-11-9 belongs to dioxole, auxiliary class Dioxolanes, name is 2,2,4-Trimethyl-1,3-dioxolane, and the molecular formula is C6H12O2, Formula: C6H12O2.

Referemce:
https://en.wikipedia.org/wiki/1,3-Benzodioxole,
Dioxole | C3H4O2 – PubChem

Kwiatkowski, Stefan published the artcileReactions of 1,3-dioxacyclanes with acid halides. A new synthesis for ω-halohydrin esters, Synthetic Route of 1193-11-9, the publication is Monatshefte fuer Chemie (1984), 115(6-7), 869-72, database is CAplus.

Dioxolanes I (R = R¹ = H, Me, Et; R² = H, R³ = H, Me, pentyl; R = R² = R³ = Me, R¹ = Ph) reacted with R⁴CH₂COBr (R⁴ = H, Cl) to give halohydrin esters BrCHR²CHR³O₂CCH₂R⁴ in 53-85% yield. Similarly, dioxanes II (R⁵ = Me, Et) and acyl halides R⁴CH₂COR⁶ (R⁴ = H, Cl; R⁶ = Cl, Br) gave 40-75% R⁶CH₂CH₂O₂CCH₂R⁴.

Monatshefte fuer Chemie published new progress about 1193-11-9. 1193-11-9 belongs to dioxole, auxiliary class Dioxolanes, name is 2,2,4-Trimethyl-1,3-dioxolane, and the molecular formula is C6H12O2, Synthetic Route of 1193-11-9.

Referemce:
https://en.wikipedia.org/wiki/1,3-Benzodioxole,
Dioxole | C3H4O2 – PubChem