Chiraldextm g-ta
WebChiraldexTM毛细管柱 其它-气相色谱柱 ... 例如：G-TA 代表γ-三氟乙酰化环糊精固定相。适合于分析：非芳香族对映异构体包括饱和醇、胺类、羧基酸类、环氧化物、二醇、多羟 … WebApr 1, 1996 · Finally, the desired bisoxazoline 19 ([Ct]D24 -59.3(c 1.9, CHCI3)) was obtained in 28% yield by treatment with triphenylphosphine, carbon tetrachloride and …
Chiraldextm g-ta
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http://www.analyticalcolumns.com/capillarycolumns/alltech/astecchiraldex.html WebThe resulting MCF-immobilized was then warmed to room temperature over 14 h. BOX-Cu(I) catalyst provided 95 % ee for the trans [b] Yield of isolated product. isomer and 92 % ee for the cis isomer, and 80 % yield [c] Determined by GC (ChiraldexTM G-TA, 50 m M 0.25 mm for the asymmetric cyclopropanation of styrene.
WebWe are currently evaluating the use of a 2,6 – di-O-pentyl-3-propionyl- -cyclodextrin (ChiraldexTM G-PN) for 4 common cathinone derivatives (Methedrone, Mephedrone, Methylone and Ethylone) since this stationary phase has proved useful for separations of compounds within the Emde sythetic route of methylamphetamine. 2 WebOct 1, 1996 · Chiral amine and thiol analogues of secondary alcohols were tested as substrates for the Candida antarctica lipase B with emphasis on lipase enantioselectivity …
WebBuy Supelco 73034AST Astec® CHIRALDEX® G-TA Capillary GC Column, L x I.D. 40-Meters x 0.25mm, df 0.12um. To provide a better shopping experience, our website uses cookies. Continuing use of the site implies consent. ×. For questions or assistance call 512.836.1167. Login Register ; Store Locator. Quick Order ... WebDescription générale. Astec ® CHIRALDEX G-TA is the first choice in the Group 1 CSPs (Surface Interactions, Complex Derivatives). This phase has been shown to be the most broadly-selective phase for the pharmaceutical industry, especially for the analysis of chiral intermediates and drug studies in various stages of clinical trials.
WebJun 11, 2024 · The oxidation of several racemic 2-methyl-l-alkanolsby the alcohol oxidase from Candida boidinii, Hansenula sp., Pichia pastoris, and Torulopsis methanothermo …
WebAstec CHIRALDEXTM G-BP Capillary GC Column: Astec CHIRALDEXTM B-TA Capillary GC Column: Astec CYCLOBONDTM I 2000 DNP Chiral HPLC Guard: Astec C18 HPLC Guard Column: Astec CYCLOBONDTM I 2000 AC Chiral HPLC Guard: Astec CYCLOBONDTM I 2000 AC Chiral HPLC Column: Astec CHIRALDEXTM G-PN … flagstaff sandwich shopWebSep 10, 2012 · The conversion and enantiomeric excess of the remaining substrate was analyzed by gas chromatography (GC) on an Agilent 6890 instrument equipped with a FID detector and an ASTEK ChiraldexTM G-TA (γ-cyclodextrin, trifluoroacetyl) capillary column (30 m × 0.25 mm) with He as the carrier gas (25 mL/min). canon pixma g1010 driver download windows 10WebGeneral description. Astec ® CHIRALDEX G-TA is the first choice in the Group 1 CSPs (Surface Interactions, Complex Derivatives). This phase has been shown to be the most … canon pixma g1010 software downloadWebG-TA has its highest selectivity for oxygen-containing analytes like alcohols, diols and polyols as the free alcohol and as an acyl derivative; amines as acyl derivatives; amino alcohols, halogens (Cl>Br>F), amino acids, hydroxy acids, lactones, furans and pyrans. It is also highly selective for halogenated compounds. Astec® CHIRALDEX® G-TA ... flagstaff santa workshophttp://www.sh-puy.com/Productshow_624.html flagstaff sams club gasWebEnantiomers of C-3 secondary alcohols, 3-hydroxybutanoates, and cyclic 1,3-dithioacetals were separated by chiral GLC using CP-Chirasil-Dex CB and Chiraldex G-TA columns. … canon pixma g2000 driver free downloadWebThe suffix describes the nature of the derivatization i.e., G-TA refers to Gamma Trifluororacetylated phase. The most striking characteristic of these phases is that they … canon pixma fehler 5100