Day: October 18, 2022

Recommanded Product: 19444-84-9On March 31, 2021, Kim, Jung-Hun; Jung, Sungyup; Lin, Kun-Yi Andrew; Rinklebe, Jorg; Kwon, Eilhann E. published an article in Bioresource Technology. The article was 《Comparative study on carbon dioxide-cofed catalytic pyrolysis of grass and woody biomass》. The article mentions the following:

This study investigated the mechanistic functions of CO2 on the pyrolysis of two different biomasses to elucidate the effect of CO2 on syngas formations during pyrolysis. To this end, CO2-assisted pyrolysis of cellulosic biomass (barnyard grass, Echinochloa) and lignin-rich woody biomass (retinispora, Chamaecyparis obtusa) were compared. The confirmed mechanistic effectiveness of CO2 on pyrolysis of biomass was gas phase reactions between CO2 and volatile matters from biomass pyrolysis. Lignin-rich biomass had more CO2 susceptibility, resulting in more enhanced CO formation via the gas phase reactions. To expedite the slow reaction rate of the gas phase reactions during biomass pyrolysis, earth-abundant catalysts (Co/SiO2 and Ni/SiO2) were employed for pyrolysis of two biomass substrates. With Co and Ni catalysts, the syngas formations were 2 and 3 times higher comparing to the pyrolysis of without catalyst. The cumulative formations of syngas from lignin-rich biomass was nearly doubled than that from cellulosic biomass. In the experimental materials used by the author, we found 3-Hydroxydihydrofuran-2(3H)-one(cas: 19444-84-9Recommanded Product: 19444-84-9)

3-Hydroxydihydrofuran-2(3H)-one(cas: 19444-84-9) may be employed as starting reagent in the synthesis of series of seco-pseudonucleoside synthons via aminolysis. It may be employed as starting reagent in the synthesis of enantiomerically pure orthogonally protected δ-azaproline, via Mitsunobu reaction.Recommanded Product: 19444-84-9

Referemce:
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem

Quality Control of 3-Hydroxydihydrofuran-2(3H)-oneOn May 1, 2019 ,《Guava-flavored whey beverage processed by cold plasma technology: Bioactive compounds, fatty acid profile and volatile compounds》 appeared in Food Chemistry. The author of the article were Silveira, Marcello R.; Coutinho, Nathalia M.; Esmerino, Erick A.; Moraes, Jeremias; Fernandes, Leonardo M.; Pimentel, Tatiana C.; Freitas, Monica Q.; Silva, Marcia C.; Raices, Renata S. L.; Senaka Ranadheera, C.; Borges, Fabio O.; Neto, Roberto P. C.; Tavares, Maria Ines B.; Fernandes, Fabiano A. N.; Fonteles, Thatyane V.; Nazzaro, Filomena; Rodrigues, Sueli; Cruz, Adriano G.. The article conveys some information:

The effect of cold plasma processing time and gas flow on bioactive compounds such as vitamin C, carotenoids and phenolic compounds, DPPH, angiotensin-converting-enzyme (ACE) inhibitory activity, fatty acids profile, and volatile compounds of guava-flavored whey beverage was investigated. For comparative purposes, a pasteurized beverage was also manufactured Cold plasma increased the concentration of bioactive and volatile compounds, and proportionated changes in the fatty acids profile. The milder conditions like lower flow rate and processing time, resulted in higher vitamin C and volatile compounds levels, and higher antioxidant activity, but with a lower carotenoids content and a less favorable fatty acids profile. More drastic conditions like higher flow rate and processing time resulted in products with lower vitamin C and volatile compounds levels, but with higher carotenoids content and ACE inhibitory activity. It can be concluded that the cold plasma processing can improve the properties of the guava-flavored whey beverages (increased concentration of bioactive and volatile compounds), while the effect on the fatty acid profile and ACE inhibitory activity is dependent on the process parameters (processing time and flow rate). In the experiment, the researchers used 3-Hydroxydihydrofuran-2(3H)-one(cas: 19444-84-9Quality Control of 3-Hydroxydihydrofuran-2(3H)-one)

3-Hydroxydihydrofuran-2(3H)-one(cas: 19444-84-9) may be employed as starting reagent in the synthesis of series of seco-pseudonucleoside synthons via aminolysis. It may be employed as starting reagent in the synthesis of enantiomerically pure orthogonally protected δ-azaproline, via Mitsunobu reaction.Quality Control of 3-Hydroxydihydrofuran-2(3H)-one

Referemce:
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem

Chen, Yuce; Cao, Xiaofeng; Chen, Xi; Li, Zhong; Xu, Xiaoyong published their research in Journal of Chemical Research in 2021. The article was titled 《The structure modification of seven-membered aza-brigded neonicotinoids in order to investigate their impact on honey bees》.Name: 2,5-Dimethoxytetrahydrofuran The article contains the following contents:

In order to explore the relationship between the structure and the toxicity to honey bees of seven-membered aza-bridged neonicotinoids, 16 novel seven-membered aza-bridged neonicotinoid analogs are synthesized by replacing the pyridine ring, and changing the substituents on the pyridine ring, the electron-withdrawing group NO2 and the imidazole ring of authors’ previously developed aza-bridged neonicotinoid 1-[(6-chloropyridin-3-yl)methyl]-10-(2,5-dimethylphenyl)-9-nitro-2,3,5,6,7,8-hexahydro-1H-5,8-epiminoimidazo azepine. The insecticidal bioactivities against cowpea aphid (Aphis craccivora) and the bee toxicities of these compounds are tested. Some of the title compounds present good insecticidal activities against cowpea aphid. The results also show that some of the title compounds exhibit lower bee toxicity than that of 1-[(6-chloropyridin-3-yl)methyl]-10-(2,5-dimethylphenyl)-9-nitro-2,3,5,6,7,8-hexahydro-1H-5,8-epiminoimidazo azepine and imidacloprid. This suggests that changing the substituents on the neonicotinoids can influence the toxicity toward honey bees of these analogs. The experimental process involved the reaction of 2,5-Dimethoxytetrahydrofuran(cas: 696-59-3Name: 2,5-Dimethoxytetrahydrofuran)

2,5-Dimethoxytetrahydrofuran(cas: 696-59-3) is a member of ether. Friedel Crafts reaction, for example, adds an alkyl or acyl group to aromatic ethers when they react with an alkyl or acyl halide in the presence of a Lewis acid as a catalyst.Name: 2,5-Dimethoxytetrahydrofuran

Referemce:
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem

Liu, Meiyan; Cui, Mingkuan; Zhang, Lei; Guo, Yongkang; Xu, Xiaoyang; Li, Wenlong; Li, Yuanhao; Zhen, Bin; Wu, Xiaoming; Liu, Xuguang published an article in 2022. The article was titled 《The rapid construction of bis-BN dipyrrolyl[a,j]anthracenes and a direct comparison with a carbonaceous analogue》, and you may find the article in Organic Chemistry Frontiers.Synthetic Route of C6H12O3 The information in the text is summarized as follows:

A series of bis-BN dipyrrolyl[a,j]anthracenes and one of their representative carbonaceous analogs have been synthesized in a short number of steps. Bis-BN dipyrrolyl[a,j]anthracenes are strongly fluorescent in solution Both the absorption and emission spectra of bis-BN dipyrrolyl[a,j]anthracenes are blue shifted compared to the carbonaceous analog. Moreover, organic light-emitting diodes based on these compounds were fabricated via a solution method. In particular, device II with 4b as an emitter presents a pure-blue emitting color with a high current efficiency (3.84 cd A-1) and CIE coordinates of (0.18, 0.21), whereas device VII based on the carbonaceous analog displays yellowish-green luminescence with lower efficiency. In addition to this study using 2,5-Dimethoxytetrahydrofuran, there are many other studies that have used 2,5-Dimethoxytetrahydrofuran(cas: 696-59-3Synthetic Route of C6H12O3) was used in this study.

2,5-Dimethoxytetrahydrofuran(cas: 696-59-3) is a member of ether. When aromatic ethers are exposed to halogen in the presence or absence of a catalyst, they undergo halogenation, such as bromination.Synthetic Route of C6H12O3

Referemce:
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem