Tag: 210.2265

Analysis of volatile constituents from cocoa extract (Theobroma cacao. L) by using stir bar sorptive extraction-thermal desorption/gas chromatography-mass spectrometry was written by Mao, Deshou;Su, Yong;Qu, Rongfen;Li, Zhiyu;Liu, Qiang. And the article was included in Xiangliao Xiangjing Huazhuangpin in 2012.Reference of 68527-74-2 This article mentions the following:

The volatile constituents of Cocoa extract were identified by using stir bar sorptive extraction-thermal desorption/gas chromatog.-mass spectrometry (SBSE-TDU/GC-MS). With the MS library search and retention index comparison, 73 compounds were confirmed with PDMS twister, and the main constituents included isovaleric acid (25.28%), isovaleraldehyde propylene glycol acetal (14.57%), benzyl acetate (10.60%), 1,2-propylene glycol (9.17%), phenethyl alc. (9.00%), dibenzyl ketone (5.00%), phenethyl phenylacetate (4.50%), isoamyl isovalerate (3.63%), 2,3,5-trimethylpyrazine (2.34%), 2-methoxy-3-Me pyrazine (2.29%), 2-isopropyl-5-methyl-2-hexenal (1.53%), Et linoleate (1.25%) and acetic acid (1.10%), while with EG-silicone twister, 59 chems. were determined, which included the following main compounds: 2,3,5-trimethylpyrazin (63.59%), acetic acid (12.06%), isovaleraldehyde propylene glycol acetal (4.96%), benzyl acetate (3.92%), palmitic acid (1.89%), guaiacol (1.41%), isovaleric acid (1.08%), dibenzyl ketone (1.08%) and glycerin (1.01%). The research provided technol. supports for exploitation and quality control of cocoa extract In the experiment, the researchers used many compounds, for example, 2-Methoxy-4-(4-methyl-1,3-dioxolan-2-yl)phenol (cas: 68527-74-2Reference of 68527-74-2).

2-Methoxy-4-(4-methyl-1,3-dioxolan-2-yl)phenol (cas: 68527-74-2) belongs to dioxole derivatives. Dioxoles, particularly fluorinated dioxoles, are used as co-monomers to make polymers that find use in forming protective coatings for chemical resistance. 1,3-Benzodioxole can be synthesized from catechol with disubstituted halomethanes.Reference of 68527-74-2

Referemce:
1,3-Benzodioxole – Wikipedia,
Dioxole | C3H4O2 – PubChem

Identification of 1,3-dioxolanes in coffee-like flavorings was written by Tateo, Fernando;Bononi, Monica;Lubian, Elisabetta;Martello, Silvia. And the article was included in Journal of High Resolution Chromatography in 1998.Safety of 2-Methoxy-4-(4-methyl-1,3-dioxolan-2-yl)phenol This article mentions the following:

Com. available coffee-like flavoring preparations, identifying certain dioxolane structures of particular interest were concerned. The research was carried out by GC/MS, and spectral characterization was performed of the compounds in question, and especially of the acetals and ketals produced from compounds with carbonyl functions and 1,2-propylene glycol. Some determinations by chiral gas chromatog. and by isotope ratio mass spectrometry (IRMS) were useful in improving the anal. characterization of certain dioxolanes. In the experiment, the researchers used many compounds, for example, 2-Methoxy-4-(4-methyl-1,3-dioxolan-2-yl)phenol (cas: 68527-74-2Safety of 2-Methoxy-4-(4-methyl-1,3-dioxolan-2-yl)phenol).

2-Methoxy-4-(4-methyl-1,3-dioxolan-2-yl)phenol (cas: 68527-74-2) belongs to dioxole derivatives. Dioxoles, particularly fluorinated dioxoles, are used as co-monomers to make polymers that find use in forming protective coatings for chemical resistance. 1,3-Benzodioxole can be synthesized from catechol with disubstituted halomethanes.Safety of 2-Methoxy-4-(4-methyl-1,3-dioxolan-2-yl)phenol

Referemce:
1,3-Benzodioxole – Wikipedia,
Dioxole | C3H4O2 – PubChem

Metal-containing TUD-1 mesoporous silicates as versatile solid acid catalysts for the conversion of bio-based compounds into valuable chemicals was written by Li, Li;Cani, Damiano;Pescarmona, Paolo P.. And the article was included in Inorganica Chimica Acta in 2015.Category: dioxole This article mentions the following:

Three-dimensional mesoporous silicates of the TUD-1 family were synthesized with different metals (Zr, Hf and Sn) incorporated in the framework of the material. The mesoporosity of the prepared TUD-1s was confirmed by x-ray diffraction (x-ray diffraction), nitrogen physisorption and TEM. The incorporation of the metals in the silicate structure was investigated by FT-IR and UV-Vis spectroscopy. All three TUD-1 materials present a combination of Lewis and mild Bronsted acid sites, as determined by TPD-FT-IR of pyridine adsorption. The metal-containing TUD-1 materials were tested as solid acid catalysts for the conversion of three bio-based compounds into valuable chem. products. In the conversion of dihydroxyacetone into Et lactate, complete selectivity towards the desired lactate product was achieved with Zr-, Hf- and Sn-TUD-1. The three heterogeneous catalysts displayed similar activity, with Hf-TUD-1 reaching the highest conversion and metal-based turnover number Sn-TUD-1 also displayed high activity and selectivity in two acetalization reactions, i.e. the synthesis of solketal from acetone and glycerol and the reaction of vanillin with propylene glycol. The catalytic performance of these TUD-1 materials is ascribed to the high accessibility of their active sites and to the suitable combination of acid sites. The catalysts were successfully reused in consecutive runs and did not suffer from leaching. In the experiment, the researchers used many compounds, for example, 2-Methoxy-4-(4-methyl-1,3-dioxolan-2-yl)phenol (cas: 68527-74-2Category: dioxole).

2-Methoxy-4-(4-methyl-1,3-dioxolan-2-yl)phenol (cas: 68527-74-2) belongs to dioxole derivatives. Dioxoles, particularly fluorinated dioxoles, are used as co-monomers to make polymers that find use in forming protective coatings for chemical resistance. 1,3-Benzodioxole can be synthesized from catechol with disubstituted halomethanes.Category: dioxole

Referemce:
1,3-Benzodioxole – Wikipedia,
Dioxole | C3H4O2 – PubChem