Day: November 28, 2022

Hartman, Guy J. published the artcileEffect of water activity on the major volatiles produced in a model system approximating cooked meat, Application In Synthesis of 1193-11-9, the publication is Journal of Food Science (1984), 49(2), 607-13, database is CAplus.

The effects of water activity (a_w) on the major volatiles produced from a meat flavor model system containing monosodium-L-glutamate  [142-47-2], L-ascorbic acid  [50-81-7], thiamin-HCl  [67-03-8], and cystine  [56-89-3] were investigated. Quant. and qual. differences in volatiles produced between high and low a_w systems (heated at 135°) were found. Qual. changes were observed to occur at about a_w 0.4. Compounds identified in high and low a_w systems fell into classes which are associated with boiling and roasting cooking techniques (resp.) of known naturally occurring compounds

Journal of Food Science 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 In Synthesis of 1193-11-9.

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

Hartman, Guy J. published the artcileVolatile products formed from a flavor model system at high and low moisture levels, Category: dioxole, the publication is Lebensmittel-Wissenschaft und -Technologie (1984), 17(4), 222-5, database is CAplus.

Volatiles formed from heating a model system containing MSG  [142-47-2], L-ascorbic acid  [50-81-7], thiamin-HCl  [67-03-8], and cystine  [7732-18-5] were examined in water and propylene glycol  [57-55-6] systems. Qual. differences in compounds formed in the systems were observed

Lebensmittel-Wissenschaft und -Technologie 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

Colladon, Marco published the artcileTailoring Pt(II) chiral catalyst design for asymmetric Baeyer-Villiger oxidation of cyclic ketones with hydrogen peroxide, Name: (R)-5,5′-Bis(diphenylphosphino)-2,2,2′,2′-tetrafluoro-4,4′-bi-1,3-benzodioxole, the publication is Synlett (2006), 3515-3520, database is CAplus.

Asym. Baeyer-Villiger oxidation of cyclic ketones with hydrogen peroxide mediated by a series of new chiral Pt(II) complexes afforded lactone products in good yields and moderate enantioselectivities.

Synlett published new progress about 503538-69-0. 503538-69-0 belongs to dioxole, auxiliary class (Atropisomeric Bisphosphine Ligands, name is (R)-5,5′-Bis(diphenylphosphino)-2,2,2′,2′-tetrafluoro-4,4′-bi-1,3-benzodioxole, and the molecular formula is C38H24F4O4P2, Name: (R)-5,5′-Bis(diphenylphosphino)-2,2,2′,2′-tetrafluoro-4,4′-bi-1,3-benzodioxole.

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

Takahashi, Hajime published the artcileNew flavonoids isolated from infected sugarbeet roots, Application of 9-Hydroxy-6-phenyl-8H-[1,3]dioxolo[4,5-g]chromen-8-one, the publication is Bulletin of the Chemical Society of Japan (1987), 60(6), 2261-2, database is CAplus.

New flavonoid compounds 3,5-dihydroxy-6,7-methylenedioxyflavanone, 2′,5-dihydroxy-6,7-methylenedioxyisoflavone, and 5-hydroxy-6,7-methylenedioxyflavone were isolated from sugar beet roots infected with Rhizoctonia solani.

Bulletin of the Chemical Society of Japan published new progress about 110204-45-0. 110204-45-0 belongs to dioxole, auxiliary class Flavonoids, name is 9-Hydroxy-6-phenyl-8H-[1,3]dioxolo[4,5-g]chromen-8-one, and the molecular formula is C24H12, Application of 9-Hydroxy-6-phenyl-8H-[1,3]dioxolo[4,5-g]chromen-8-one.

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

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

Hattori, Gaku published the artcileCopper-catalyzed enantioselective propargylic amination of propargylic esters with amines: copper-allenylidene complexes as key intermediates, Related Products of dioxole, the publication is Journal of the American Chemical Society (2010), 132(30), 10592-10608, database is CAplus and MEDLINE.

Propargyl alcs. and acetates RCH(OX)CCH (R = aryl, heterocyclyl, alkyl, alkenyl; X = H, MeCO), having terminal acetylene moiety, undergo asym. substitution of the hydroxy-function for amine nucleophiles, catalyzed by copper(I) complexes with C₂-sym. chiral diphosphine ligands. The scope and limitations of the copper-catalyzed propargylic amination of various propargylic esters with amines are presented, where optically active diphosphines such as Cl-MeO-BIPHEP and BINAP work as good chiral ligands. A variety of secondary amines are available as nucleophiles for this catalytic reaction to give the corresponding propargylic amines with a high enantioselectivity. The results of some stoichiometric and catalytic reactions indicate that the catalytic amination proceeds via copper-allenylidene complexes formed in situ, where the attack of amines to the electrophilic γ-carbon atom in the allenylidene complex is an important step for the stereoselection. Investigation of the relative rate constants for the reaction of several para-substituted propargylic acetates with N-methylanilines reveals that the formation of the copper-allenylidene complexes is involved in the rate-determining step. The result of the d. functional theory calculation on a model reaction also supports the proposed reaction pathway involving copper-allenylidene complexes as key intermediates. The catalytic procedure presented here provides a versatile and direct method for the preparation of a variety of chiral propargylic amines.

Journal of the American Chemical Society published new progress about 503538-69-0. 503538-69-0 belongs to dioxole, auxiliary class (Atropisomeric Bisphosphine Ligands, name is (R)-5,5′-Bis(diphenylphosphino)-2,2,2′,2′-tetrafluoro-4,4′-bi-1,3-benzodioxole, and the molecular formula is C38H24F4O4P2, Related Products of dioxole.

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

Patel, Rajani published the artcileGas chromatography-mass spectrometry analysis of chemical components of two different stages of root part of moolak (Raphanus sativus Linn.), SDS of cas: 177-10-6, the publication is International Journal of Research in Ayurveda & Pharmacy (2021), 12(2), 11-14, database is CAplus.

Moolak or Radish (Raphanus sativus Linn.) is grown all over the world. Radish is eaten raw as salad due to its pungent flavor. Tender radish root is consumed with leafy vegetable and radish in its starting stage of bolting is consumed as stew. After late bolting stage, only new leaves produced in inflorescence axis and seeds are consumed as edible substance and mature seeds are used for medicinal purpose like Kushtha (Skin disease). Formulations of Moolak seed is already mentioned in Ayurvedic literatures. Here we are taking tender and early bolt stage of radish where tender is balmoolak and Bolt is vriddha moolak. This study shows the differences in chem. composition of two stages of moolak to know about their medicinal properties, because medicinal properties of herbs are due to phytoconstituents. GC-MS (Gas chromatog.-mass spectrometry) technique is used to identify bioactive compounds in methanolic extract of Raphanus sativus. Tender radish (balmoolak) has shown total 38 peaks and Bolt radish (vriddhamoolak) showed total 41 peaks of phytoconstituents. 15 compounds are common among both samples.

International Journal of Research in Ayurveda & Pharmacy published new progress about 177-10-6. 177-10-6 belongs to dioxole, auxiliary class Dioxolane,Spiro, name is 1,4-Dioxaspiro[4.5]decane, and the molecular formula is C8H14O2, SDS of cas: 177-10-6.

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

Deng, Gui-sheng published the artcileAcetalization of carbonyl compounds with diols catalyzed by InCl₃.4H₂O, Formula: C8H14O2, the publication is Hunan Shifan Daxue Ziran Kexue Xuebao (2012), 35(4), 35-39, database is CAplus.

Acetalization of aromatic and aliphatic aldehydes with diols catalyzed by InCl₃.4H₂O was carried out in refluxing benzene to give the corresponding acetals in 76%-85% yields. And ketone acetals were obtained in 75%-82% yields in the same method.

Hunan Shifan Daxue Ziran Kexue Xuebao published new progress about 177-10-6. 177-10-6 belongs to dioxole, auxiliary class Dioxolane,Spiro, name is 1,4-Dioxaspiro[4.5]decane, and the molecular formula is C8H14O2, Formula: C8H14O2.

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