Undecylene chloride

To a solution 5 g of L-dehydrotestosterone in 25 ml of benzene was added 3 ml of pyridine and 7.1 ml undecylene chloride. The mixture was heated for 2 heurs at 70°C. After cooling pyridine hydrochloride was filtered off. The filtrat was purified via chromatography on neutral aluminum oxide. Benzenic eluate was concentrated to obtain 1-dehydrotestosteron 17-undecylenate (boldenone undecylenate) as an oil 7,max 243-244 nm. 

Internal stabilization is a novel method of enhancing the thermal stability of vinyl polymers. Braun, who proposes this term, reports that metal salts of unsaturated carbonic acids are suitable comonomers acting as internal stabilizers. For example, a copolymer of vinyl chloride with only 0.3 mole % of lead undecylenate has a significantly longer and better thermal stability than externally lead-stabilized PVC. 

Considerably better results are obtained with copolymers of vinyl chloride and lead undecylenate. The lead salt of undecylenic acid, (CH2=CH—(CH2)g—COO)2Pb, can be copolymerized by free radicals in bulk or in methanol solution. The composition of the resulting polymer has been determined by infrared spectroscopy (4). Figure 5 shows an infrared spectrum of a film of homopolymeric PVC and of a copolymer obtained from vinyl chloride and lead undecylenate. At wavenumbers... 

All copolymers were purified carefully from unreacted lead undecylenate by extraction with suitable solvents. Figure 6 shows the results of dehydrochlorination of some samples at 170 °C. As can be seen, the rate of dehydrochlorination is not only distinctly lower compared with that of PVC, but there is, initially, also a certain period during which no hydrogen chloride is evolved. Although the sample, prepared with 6 wt. % lead salt in the monomer mixture, contains only about 0.3 mole % lead salt in the polymer, it exhibits a remarkable thermal stability at 170 °C. almost no dehydrochlorination occurs within the first 2 hours. This is, therefore, a genuine case of internal stabilization, which finds expression also in the color of the polymer. Discoloration of the samples is substantially less than that of unstabilized PVC the polymer containing 1 mole % lead salt is still nearly colorless after 2 hours of heat treatment. 

Figure 6. Dehydrochlorination of copolymers of vinyl chloride and lead undecylenate at 170°C. under nitrogen. Values on curves designate the amounts (wt. %) of lead salt in monomer mixtures used to prepare copolymers...

Table II. Composition and Stability of Copolymers from Vinyl Chloride and 2 wt. % of Undecylenic Acid Salts0...

Figure 8. Dehudrochlorination of copolymers of vinyl chloride and undecylenic acid salts (2 wt. % in monomer mixtures used for preparation) at 170° C. under nitrogen...

Figure 9. Infrared spectra of copolymer of vinyl chloride ana 0.3 mole % lead undecylenate before and after heat treatment (KBr briquet sample)...

CH2 = CH(CH2)8CHO, ChH20O, Mr 168.28, bp0,4kPa 103 °C, c%1 0.8496, < 1.4464, was identified, e.g., in coriander leaf extract [20]. It is a colorless liquid with a fatty-green, slightly metallic, heavy-flowery odor. The aldehyde can be synthesized from undecylenic acid, for example, by hydrogenation of the acid chloride (Rosen-mund reduction) or by reaction with formic acid in the vapor phase in the presence of titanium dioxide. In perfumery, 10-undecenal is one of the aldehydes essential for creating the aldehydic note. ... 

Definition Potassium salt of condensation prod, of undecylenic acid chloride and hydrolyzed collagen Properties Anionic Toxicology TSCA listed... 

Synonyms Protein hydrolysates, reaction prods, with 10-undecenoyl chloride, compds. with triethanolamine TEA-undecylenoyl hydrolyzed animal protein Triethanolamine undecylenoyl hydrolyzed animal protein Definition Triethanolamine salt of the condensation prod, of undecylenic acid chloride and hydrolyzed collagen... 

Stearalkonium chloride TEA-sorbate Tea tree (Melaleuca alternifolia) extract Tetrabutyl ammonium bromide Thiabendazole 2,2 -Thiobis (4-chlorophenol) 2,2 -Thiobis (4,6-dichlorophenol) Tormentil (Potentilla erecta) extract Jriacetin Undecylenamide DEA Undecylenamide MEA Undecylenamidopropyl betaine Undecylenamidopropyl trimonium methosulfate Undecyleneth-6 Willow (Salix alba) bark extract Zinc acetate Zinc borate Zinc phenolsulfonate Zinc sulfate Zinc undecylenate... 

Corn oil PEG-6 esters C12-15 pareth-12 Dicetyidimonium chloride Dimethicone copolyol undecylenate Dimethiconol Dioctyl adipate Dioctyl succinate Dipalmitoylethyl hydroxyethylmonium methosulfate Dipropylene glycol salicylate Dog rose (Rosa canina) hips oil Ethylene/acrylic acid copolymer Ethyl linoleate p-Glucan Glycereth-7 benzoate Glyceryl caprylate... 

PEG-30 soy sterol PEG-40 soy sterol PEG-9 stearamide carboxylic acid PEG-2 stearamine PEG-5 stearamine PEG-10 stearamine PEG-15 stearamine PEG-50 stearamine PEG stearate PEG-2 stearate PEG-2 stearate SE PEG-3 stearate PEG-4 stearate PEG-5 stearate PEG-6 stearate PEG-7 stearate PEG-8 stearate PEG-9 stearate PEG-10 stearate PEG-12 stearate PEG-14 stearate PEG-18 stearate PEG-20 stearate PEG-23 stearate PEG-25 stearate PEG-32 stearate PEG-35 stearate PEG-36 stearate PEG-40 stearate PEG-45 stearate PEG-50 stearate PEG-55 stearate PEG-90 stearate PEG-100 stearate PEG-150 stearate PEG-2 stearmonium chloride PEG-4 tallate PEG-5 tallate PEG-6 tallate PEG-8 tallate PEG-9 tallate PEG-10 tallate PEG-12 tallate PEG-14 tallate PEG-15 tallate PEG-16 tallate PEG-20 tallate PEG-660 tallate PEG-5 tallow amide PEG-8 tallow amide PEG-50 tallow amide PEG-7 tallowamine PEG-11 tallowamine PEG-50 tallowamine PEG-3 tallow aminopropylamine PEG-10 tallow aminopropylamine PEG-15 tallow aminopropylamine PEG-2 tallowate PEG-20 tallowate PEG-15 tallow polyamine PEG-5 tricaprylyl citrate PEG-66 trihydroxystearin PEG-200 trihydroxystearin PEG-5 trimethylolpropane trimyristate PEG-6 undecylenate... 

N-Benzyldimethylamine Benzyltriethyl ammonium chloride Benzyl trimethyl ammonium chloride Bis (2-ethylhexyl) maleate Bis (glycidoxypropyl) tetramethyidisiloxane 3-[Bis (2-hydroxyethyl) amino] propyltriethoxysilane N,N -Bis (2-hydroxypropyl)-2-methylpiperazine Bis-(N-methylbenzamide) ethoxymethyl silane Bisphenol A ethoxylate diacrylate Bis-(3-(triethoxysilyl) propyl) tetrasulfane Bis (trimethoxysilylpropyl) ethylene diamine Bis (trimethylsilyl) urea 1-Butoxyethoxy-2-propanol Butoxytriglycol t-Butyl alcohol n-Butyl chloroformate n-Butyldimethylchlorosilane Butyl lactate t-Butyl mercaptan Butyl myristate t-Butyl perbenzoate Butyl sulfide Calcium undecylenate C8-10 alcohols C14-15 alcohols... 

Acenaphthene n-Amyl alcohol Arachidic acid Arachidyl alcohol Benzidine dihydrochloride 2-Butyl octanoic acid Butyloctanol Calcium sulfate Cetylarachidol Cocamine Cocopropylenediamine Cyclodextrin p-Cyclodextrin 1,10-Decanediol 2-Decyl tetradecanoic acid Dihydroxyethyl cocamine oxide Dodecylhexadecanol 2-Hexyl decanoic acid Hydroxypropyl-o-cyclodextrin Hydroxypropyl-P-cyclodextrin Hydroxypropyl-y-cyclodextrin 12-Hydroxystearyl alcohol Isobutyl oleate Kelp Lead phthalate, basic Methoxyethanol 2-Methoxy-5-nitroaniline Methoxy tripropylene glycol acrylate Methylene chloride 2-Octyl dodecanoic acid Oleamine PEG-25 castor oil PEG-30 castor oil PEG-36 castor oil PEG-40 castor oil PEG-200 castor oil PEG-5 hydrogenated castor oil PEG-25 hydrogenated castor oil Polyamide Polysorbate 85 Pyridine Quartz Sodium isopropyl naphthalene sulfonate Soybean (Glycine soja) meal Sucrose Sulfur Tallow amine N-Tallow-1,3-diaminopropane dioleate p-Toluene sulfonic acid Tri methyl amine Tungstic acid Undecylenic acid Vinyl compounds and polymers plastics additive... 

Calcium undecylenate L-Camphor Cetalkonium chloride Cetearalkonium bromide Cetrimonium bromide Cetrimonium chloride Cetylpyridinium chloride Chlorhexidine Chlorhexidine diacetate Chlorhexidine digluconate Chlorhexidine dihydrochloride Chloroacetamide Chlorobutanol Chlorophene Chloroxylenol Chlorphenesin Climbazole o-Cymen-5-ol Diazolidinyl urea Dilauryl thiodipropionate Dimethyl hydantoin-formaldehyde polymer Dimethylhydroxymethylpyrazole Dimethyl oxazolidine DM DM hydantoin Edetic acid Ethyl benzoate Ethylparaben Ethyl vanillate Fluorosalan Formaldehyde Formic acid Glutaral Grapefruit (Citrus grandis) seed extract Hexamethylenetetramine Hexamidine... 

N-Hydroxysuccinic acid Imidazolidinyl urea Isopropylparaben Lauralkonium bromide Laurtrimonium bromide Laurtrimonium chloride Magnesium benzoate Magnesium propionate Magnesium salicylate MEA-benzoate MEA o-phenylphenate MEA-salicylate MEA-undecylenate Methenammonium chloride Methyl benzoate... 

Sodium sulfite Sodium undecylenate Sorbic acid Soytrimonium chloride Stearalkonium chloride... 

The use of bilayer coatings was reported from Kapnissi et al. [31], where a permanently adsorbed coating of a cationic polymer salt [poly(diaIlymethylammo-nium chloride)] was covered with a dynamically adsorbed polymeric surfactant [poly (sodium undecylenic sulfate)]. In contrast to the stable coatings, the adsorbed layers can be easily prepared. Traditionally, polymeric surfactants have been used in MEKC [38] and the separation principle can therefore be transferred to o-CEC. However, several other types of dynamically attached pseudo-stationary phases (PSPs) exist, such as cyclodextrins [39], dendrimers [40], proteins [41], liposomes [42], ionenes [43], siloxanes [44] micelles [3, 38] and microemulsions [45]. Comparisons between MEEKC and MEKC are often made, as their separation basis is similar [46-48]. In MEKC, surfactant molecules form micelles and solutes dissolve in them, which facilitates separation. Solutes can penetrate a microemulsion droplet more easily than a more rigid micelle and the loadability of a droplet compared with a micelle is much higher. 

UDMH (Unsymmetrical dimethyl hydrazine) - 219, 303, 306, 309, 312, 315, 366 Ucon products 102, 156, 283, 366, 820 Udylite 61 - 845 Ultraformer feed - 215 Ultrasonic cleaning solutions - 884 Ultraviolet light - 94 Ultrawet detergent - 185, 215 Undecyl alcohol - 93, 226 Undecylenic acid - 629 Undertaker s restorative - 845 Union oils and fluids - 283, 820 Unvis hydraulic fluid - 366 Uran 156, 215 Uranium 732 Uranium chloride - 597, 740 Uranium extraction - 215 Uranium fluoride - 215 Uranium ore - 598, 719 Uranium SX units - 215 Uranium sulfate-sulfuric acid - 384 Uranyl ammonium phosphate - 740 Uranyl nitrate - 598, 740 Uranyl sulfate - 740... 

L-a Glycerophosphorylcholine cadmium chloride complex was prepared by hydrolyzing egg lecithin which was isolated from egg yolk. 1-Dodecyne, undecylenic acid, 11-bromo undecanoic acid, nonanoic acid, lithium acety-lide ethylenediamine complex, dimethylaminopyridine (DMAP), and dicyclo-hexylcarbodiimide (DCC) were purchased from Aldrich Chemical Co. Milwaukee, WI. Tridecyne was obtained from Farchan Laboratories, Gainesville, FL, and 1,2-dihexanoyl and 1,2-dipalmitoyl PC were purchased from Avanti Polar Lipids, Birmingham, AL. Mixed bed resin AG 501-X8(D) was procured from Bio-Rad Laboratories, Richmond, CA. Chloroform was distilled freshly over phosphorus pentoxide just before the use. Other solvents were used as received. The water was triply distilled and deionized. 

By using RCM with the Grubbs catalyst, synthesis of cyclic poly(e-caprolactone) [poly(e-CL)] was reported by Xie et al. [75]. They used 10-undecen-l-ol as initiator to polymerize the e-CL with Sn(Oct)2 as catalyst. The hydroxyl chain end of the poly (e-CL) was further functionalized by the reaction with undecylenic acid chloride to give a divinyl poly(e-CL). The cyclization was carried out in a one-pot reaction at a polymer concentration of 5.0 x 10 " mol/L however, the efficiency of the cyclization was relatively low as their SEC traces showed a large amount of multiblock condensation by-products (Scheme 23). 

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