Oxi nates

First-order plot of oxy nate disappearance in MTO. (From Ref 24.)... 

Fig. 3-46. Separation of mineral acids and oxy non-metal anions. — Separator column Ion Pac AS4A eluent 0.00075 mol/L NaHC03 + 0.002 mol/L Na2C03 flow rate 2 mL/min detection suppressed conductivity injection 50 pL solute concentrations 3 ppm fluoride, 4 ppm chloride, 10 ppm nitrite, 10 ppm bromide, 20 ppm nitrate, 10 ppm selenite, 10 ppm orthophosphate, 25 ppm sulfate, 20 ppm sele-nate, and 25 ppm arsenate.

Hetero Diels-Alder-Biocatalysis approach for the synthesis of (S)-3- 2-[(methyl-sulfonyl) oxy]ethoxy -4-(triphenylmeth-oxy)-l-butanol methanesulfo-nate successful application of an enzyme resolution process Multi-kilo resolution of XU305, a key intermediate to the platelet glycoprotein Ilb/IIIa receptor antagonist roxifiban via kinetic and dynamic enzymatic resolution... 

Phosphate-derived a-oxy carbanions can rearrange into a-hydroxy phospho-nates. This class of rearrangement is known to proceed with retention of configuration at the carbanion terminus [27]. The enantioselective version of this rearrangement has been developed using a chiral lithium amide as base [Eq. (24)] [28]. The reaction of benzyl dimethyl phosphate 51 with amide (1 ,1 )-11 in THE gave the hydroxy phosphonate (R)-52 in 30% yield, and in enantioenriched form (52% optical purity). In contrast, when s-BuLi/(-)-l was used as a base in ether at -78°C, the enantiopurity of the phosphonate 52 was very low (8% optical purity, 65 % yield). 

Synonyms 1-0-(Dihydroxymethylsilyl)-p-D-mannopyranuronic acid Siloxanes and silicones, a-D-mannopyranuronoyl-oxy methyl, hydroxy-term i nated... 

Synonyms Ciodrin Ciovap Cyodrin Cypona E.C. 3-((Dimethoxyphosphinyl)oxy)-2-butenoic acid 1-phenylethyl ester (9,(9-Dimethyl (9-(l-methyl-2-carboxy-a-phenyl-ethyl)vinyl phosphate Decrotox Dimethyl-c/.s-l-methyl-2-(l-phenylethoxycarbo-nyl)vinyl phosphate Dimethyl phosphate of a-methylbenzyl 3-hydroxy-c/.s-crotonate Duo-kill Duravos ENT 24717 l-Methylbenzyl-3-(dimethoxyphosphinyloxo)isocroto-nate a-Methylbenzyl-3-(dimethoxyphosphinyloxy)-c/ -crotonate a-Methylbenzyl 3-hydroxycrotonate dimethyl phosphate Pantozol 1 c/.s-2-(l-Phenylethoxy)carbonyl-l-methylvinyl dimethyl phosphate SD 4294 Shell SD 4294 Volfazol. 

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