2-ethyl-1 -hydroxy-3-oxide

Anilino-4-methyl- -2-oxid E2, 662, 784 -Anilino-4-meth yl- -2-selenid K2, 784, 787 -Anihno-4-methyl- -2-sulfid E2, 662 -Benzoyl-4-methyl- -2-oxid E2, 382 -Benzyl-5,5-bis-[chlormethylJ- -2-oxid E2, 367 -Benzyl-5-chlormethyl-5-ethyl- -2-oxid E2, 367 -(Bis- 2-chlor-ethyl]-amino)-5,5-bis-[hydroxy-methyl]- -2-oxid XII/2, 415 2-(Bis-[2-chlor-ethyl]-amino)- -2-oxid XII/2, 415... 

Bis-[jodmethyl]-2-hydroxy- -2-oxid XII/2, 241 2-Brom-5-butyl-5-ethyl- -2-oxid XII/2, 285... 

Alkoxy- -2-oxid E2, 366 2-Hydroxy-4-(2-hydroxy-ethyl)- -2-oxid E2, 303 2-Hydroxy-4-(phosphomethyl)- -2-oxid E2, 303... 

Butyl-2-hydroxy- -2-oxid E2, 336 2-Chlor-3-ethyl- -2-oxid E2, 336 2-Chlor-3-methyl- -2-oxid E2, 336 2-Hydroxy-3-methyl- -2-oxid E2, 336... 

Benzyl-4-hydroxy-3-hydroxy-methyl- IV/ld, 217 (,S)-1 -(2-Hydroxy-2-pheny 1-ethyl)- -N-oxid E13/2, 1348 (kin. Racematspaltung/N-Oxygenie-rung) E16a, 415 (Amin-Oxidat.) Propan 1 - Acetoxy-2-dimethy lamino-... 

CLOROFOS (RUSSIAN) COMBOT EQUINE DANEX DEP (pesticide) DEPTHON DETF DI-METHOXY-2,2,2-TRICHLORO-l-HYDROXY-ETHYL-PHOSPHINE OXIDE 0,0-DLMETHYL-(l-HYDROXY-... 

Other workers have concentrated on the introduction of functionality into ring C of tabersonine (78). Danieli et al. (252) introduced the 17-hydroxy group by oxidation of tabersonine by means of phenylseleninic anhydride. Presumably, the Va,17-didehydrotabersonine initially produced suffers nucleophilic attack by water during workup, the stereochemistry of attack being controlled by the adjacent ethyl group. Oxidation of the product, 377, at C-16 by means of peracid also proceeds preferentially at the /3-face to give the V-oxide 378 of the desired diol. Reductive methylation and acetylation then complete the partial synthesis of vindorosine (43) (Scheme 24) (252). 

Amines, coco alkyl dihydroxyethyl, oxides Bis(2-hydroxyethyl) cocoamine oxide N,N-Bis(2-hydroxy-ethyl)cocamine oxide Coco di-(hydroxyethyl) amine oxide Dihydroxyethyl cocamine oxide EINECS 263-180-1 Ethanol, 2,2 -iminobis-, N-coco alkyl derivs., N-oxides 2,2 -lminobisethanol, N-coco alkyl, N-oxide. 

Deprotonation of a-ketal-oo-hydroxy and a-pyridinyl-co-hydroxy poly(ethyl-ene oxide) by Ph2CHK, followed by quenching with (NPCl2)3 results in the formation of the corresponding poly(ethylene oxide) stars based on the... 

The second approach for improving the processabihty of ICPs is to prepare their colloidal dispersions in water or an appropriate solvent The colloid dispersions of ICPs can be obtained by chemical or electrochemical oxidation of the monomer in the presence of a steric stabihzer [29-31].The key parameter for such synthesis is the choice of an appropriate steric stabihzer which adsorbs or grafts onto the polymer coUoidal particles to prevent their aggregation or precipitation. Several polymers such as polyfethylene oxide) [32], poly(vinyl pyrroHdone) [33,34], poly(vinyl alcohol) [35], ethyl hydroxy cellulose [36], poly(vinyl alcohol-co-acetate) [37], poly(vinyl methyl ether) [38,39] and block copolymer stabihzer [40] have been used as steric stabihzers to produce PPy coUoidal dispersions. Surfactants are also employed for the synthesis of ICP coUoidal dispersions [41,42]. Very recently, stable PPy dispersions were prepared by Lu et al. by polymerizing pyrrole in an aqueous medium containing different anionic salts such as sodium benzoate, potassium hydrogen phthalate, and sodium succinate [43]. These authors also reported that the conductivity of PPy dispersions was enhanced when sodium benzoate was used as dopant. Chemical oxidahve polymerization in the presence of PSS in aqueous medium produces coUoidal dispersions and improves processability [44]. CoUoidal dispersions... 

Methyl vinyl ketone can be produced by the reactions of acetone and formaldehyde to form 4-hydroxy-2-butanone, followed by dehydration to the product (267,268). Methyl vinyl ketone can also be produced by the Mannich reaction of acetone, formaldehyde, and diethylamine (269). Preparation via the oxidation of saturated alcohols or ketones such as 2-butanol and methyl ethyl ketone is also known (270), and older patents report the synthesis of methyl vinyl ketone by the hydration of vinylacetylene (271,272). 

Steroidal 17-cyanohydrins are relatively stable towards chromium trioxide in acetic acid (thus permitting oxidation of a 3-hydroxyl group ) and towards ethyl orthoformate in ethanolic hydrogen chloride (thus permitting enol ether formation of a 3-keto-A system ). Sodium and K-propanol reduction produces the 17j -hydroxy steroid, presumably by formation of the 17-ketone prior to reduction. ... 

In a typical Knof procedure, 3jS-hydroxyandrost-5-en-17-one acetate is epoxidized with perbenzoic acid (or m-chloroperbenzoic acid ) to a mixture of 5a,6a- and 5)5,6)5-epoxides (75) in 99 % yield. Subsequent oxidation with aqueous chromium trioxide in methyl ethyl ketone affords the 5a-hydroxy-6-ketone (76) in 89% yield. Baeyer-Villiger oxidation of the hydroxy ketone (76) with perbenzoic acid (or w-chloroperbenzoic acid ) gives keto acid (77) in 96% yield as a complex with benzoic acid. The benzoic acid can be removed by sublimation or, more conveniently, by treating the complex with benzoyl chloride and pyridine to give the easily isolated )5-lactone (70) in 40% yield. As described in section III-A, pyrolysis of j5-lactone (70) affords A -B-norsteroid (71). Knof used this reaction sequence to prepare 3)5-hydroxy-B-norandrost-5-en-17-one acetate, B-noran-... 

Tamaoku and colleagues presented an efficient enzymatic photometric determination of hydrogen peroxide ffiat is essentially a color reaction resulting from the oxidative condensation of A/-ethyl-A/-(2-hydroxy-3-sulfopropyl)aniline derivatives wiffi 4-aminoantipyrine in the presence of hydrogen peroxide and peroxidase (82CPB2492). A similar calorimetric detection of hydrogen peroxide has been patented (83GEP3301470). 

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