Diisopropyl-ethyl Dimethyl

Dioxane 2-Butanol n-Butanol t-Butanol Acetic acid Acetonitrile Carbon disulfide Carbon tetrachloride Chloroform n-Decanol Diethyl ether Diisopropyl ether Dimethyl sulfoxide Ethanol Ethyl acetate Fluoroform Formic acid... 

Oberhaupt scheint die Reduktion in Gegenwart einer Base schneller und unter milderen Bedingungen abzulaufen. Neben N,N-Dimethyl-anilin23, das jedoch ebenfalls reduziert wird, wird Diisopropyl-ethyl-amin in Aceton empfohlen24 z.B. ... 

Class III. Acetone, alkyl alcohols, methyl ethyl ketone, butyl acetate, dibutyl ether, diethyl ether, diisopropyl ether, dimethyl ether, ethyl acetate, ethylene glycol, diacetone alcohol, methyl isobutyl ketone, A-methylpyrrolidone, paraffin hydrocarbons (except methane), pinenes. 

Cinnamic acid, 2,4-diisopropyl-, ethyl ester. See Ethyl diisopropylcinnamate Cinnamic acid-1,5-dimethyl-1-vinyl-4-hexenyl ester Cinnamic acid-1,5-dimethyl-1-vinyl-4-hexen-1-yl ester. See Linalyl cinnamate Cinnamic acid, o-hydroxy-, 5-lactone. See Coumarin... 

Acetoxy-2,4-dimethyl-m-dioxane Diethyl succinate Di-(2-hydroxyethyl) butynediol Diisobutyryl peroxide Diisopropyl oxalate Dimethyl adipate Dimethyl isosorbide Ethyl acetoacetate ethylene ketal Suberic acid... 

Diacetylene fatty acids were purchased from GFS. N-(2-Hydroxyethyl)-10,12-pentacosadiynamide (10) was synthesized by literatnre methods (77). 1-Amino-10,12-pentacosadiyne (11) was synthesized in fom steps from 10,12-pentacosadiynoic acid the acid in anhydrous tetrahydrofuran (THF) at 0 °C was reduced to the alcohol through treatment with hthinm alnminnm hydride (LAH, 2.5 equivalents) in diethyl ether for two hours, the alcohol was then converted to the mesylate by treatment with mesyl chloride (6 eqnivalents) in methylene chloride with diisopropyl ethyl amine over 30 minntes, the mesylate was displaced by sodium azide (1.5 equivalents) in dimethyl formamide (DMF) at 70 °C over one hour and the azide, in THF, was reduced to the amine with LAH (2 equivalents) in diethyl ether at 0 °C over one hour. N-(10,12-pentacosadiynyl)-glutamic acid (12) was prepared from 11 as follows 11 was reacted with glutaric anhydride (2 equivalents) in DMF, in the presence of diisopropylethylamine (3 equivalents), at 70 °C for 1 hour and the crade product recrystallized from a mixture of chloroform and hexanes. The identity of products were confirmed by H and C NMR. 

Carbon Monoxide Process. This process involves the insertion of carbon monoxide [630-08-0] into a chloroacetate. According to the hterature (34) in the first step ethyl chloroacetate [105-39-5] reacts with carbon monoxide in ethanol [64-17-5] in the presence of dicobalt octacarbonyl [15226-74-1], Co2(CO)g, at typical temperature of 100°C under a pressure of 1800 kPa (18 bars) and at pH 5.7. Upon completion of the reaction the sodium chloride formed is separated along with the catalyst. The ethanol, as well as the low boiling point components, is distilled and the nonconverted ethyl chloroacetate recovered through distillation in a further column. The cmde diethyl malonate obtained is further purified by redistillation. This process also apphes for dimethyl malonate and diisopropyl malonate. 

A lower degree of regioselectivity is observed with 1,4-diisopropylbenzene, which yields a mixture containing 60-80% of ethyl 3,6-diisopropyl-l//-azepine-l-carboxylate, whereas with p-xylene the ratio of 3,6- to 2,5-dimethyl-l//-azepine formed is 1 2.80... 

Dimethyl ether Ethyl methyl ether Diehyl ether Dipropyl ether Diisopropyl ether Dibutyl ether 1,2-Dimethoxy ethane... 

RH Ethyl linoleate 3-Heptene, 2,6-dimethyl- Benzene, 1,4-diisopropyl- Cumene... 

According to the latter approach, reducing sugars 128 were reacted with triethylammonium dimethyl boranophosphate in the presence of bis(2-oxo-3-oxazolidinyl)phosphinic chloride as condensing reagent, 3-nitro- 1,2,4-triazole as nucleophilic catalyst and A,A-diisopropyl-A-ethyl-amine to provide boranophosphate triester derivatives 129 as anomeric... 

Methyoxy-1 -methyl-C N,N-Dibutyl-4-hydroxy-T N,N-Diethyl-4-hydroxy-T N,N-Diisopropyl-4-hydroxy-T N,N-Dimethyl-4-hydroxy-T N,N-Dimethyl-5-hydroxy-T N,N-Dipropyl-4-hydroxy-T N-Ethyl-4-hydroxy-N-methyl-T... 

A mixture of l-deoxy-3,4-0-isopropylidene-l-phenylthio-L-erythrulose (1 6.0 g, 24 mmol) [57] and N,tV-dimethylformamide dimethyl acetal (4.25 g, 36 mmol) was stirred for 2 h at 70°C. The liberated methanol and the excess of the reagent were evaporated under reduced pressure and the dark oily residue was purified on a silica gel column with ethyl acetate as eluent to yield 2 (6.21 g, 85%) as a yellow solid mp 93°C (from diisopropyl ether). 

Acetyl-1,6-diisopropyl-4,7-dimethyl-1, 6-naphthyridine-2,5(l//,6/f)-dione 8-Acetyl-7-(2-dimethylaminovinyl)-6-propyl-1, 6-naphthyridin-5 (6/7)-one 3-Acetyl-4,7-dimethyl-1,6-dipropyl-1, 6-naphthyridine-2,5(l//,6/f)-dione 3-Acetyl-7-ethyl-4,8-dimethyl- 1,6-dipropyl-1, 6-naphthyridine-2,5(l//,6/f)-dione 3-Acetyl-4-hydroxy-1,6,7-trimethyl-1, 6-naphthyridine-2,5(l//,6/f)-dione 3-Acetyl-2-methyl-1,6-naphthyridine 8-Acetyl-7-methyl-1,6-naphthyridin-5(6H)-one... 

Ac, acetyl AIBN, azobis(isobutanonitrile) All, allyl AR, aryl Bn, benzyl f-BOC, ferf-butoxycarbonyl Bu, Butyl Bz, benzoyl CAN, ceric ammonium nitrate Cbz, benzyloxycarbonyl m-CPBA, m-chloroperoxybenzoic acid DAST, diethylaminosulfur trifluoride DBU, l,8-diazabicyclo[5.4.0]undec-7-ene DCC, /V. /V - d i eye I oh e x y I c ar bo -diimide DCM, dichloromethyl DCMME, dichloromethyl methyl ether DDQ, 2,3-dichloro-5,6-dicyano-l,4-benzoquinone DEAD, diethyl azodicarboxylate l-(+)-DET, L-(+)-diethyl tartrate l-DIPT, L-diisopropyl tartrate d-DIPT, D-diisopropyl tartrate DMAP, 4-dimethylaminopyridine DME, 1,2-dimethoxyethane DMF, /V./V-dimethylformamide DMP, 2,2-dimethoxypropane Et, ethyl Im, imidazole KHMDS, potassium hexamethyldisilazane Me, methyl Me2SO, dimethyl sulfoxide MOM, methoxymethyl MOMC1, methoxymethyl chloride Ms, methylsulfonyl MS, molecular sieves NBS, N-bromosuccinimide NIS, /V-iodosuccinimide NMO, /V-methylmorpho-line N-oxide PCC, pyridinium chlorochromate Ph, phenyl PMB, / -methoxvbenzyl PPTs, pyridiniump-toluenesulfonate i-Pr, isopropyl Py, pyridine rt, room temperature TBAF, tetrabutylammonium fluoride TBS, ferf-butyl dimethylsilyl TBDMSC1, f-butylchlorodimethylsilane Tf, trifhioromethylsulfonyl Tf20, trifluoromethylsulfonic anhydride TFA, trifluoroacetic acid THF, tetrahydrofuran TMS, trimethylsilyl TPAP, tetra-n-propylammonium perruthenate / -TsOH. / -toluenesulfonic acid... 

Chemical name" Ethyl dimethylamido Isopropyl methyl- Pinacolyl methyl- O-cyclohexyl methyl- iS -(2-diisopropyl- Isopropyl O-ethyl 5 -(2-dimethyl-... 

Pentafulven 6,6-Bis-[dimethyl-amino]-2-cyan- V/2c, 582 Piperidin 1-Phenylazo- X/3, 719 Pyrazin 2-Cyan-3,6-diisopropyl-E9b/2, 336 (Cl - CN) Pyrazolidin 3-Imino-l-(2-phenyl-ethyl)- X/2, 63... 

Throughout the Tables, the following abbreviations are used A, acetone AcOH, acetic acid B, benzene Bu, 1-butanol C, cyclohexane Ch, chloroform D, 1,4-dioxane Dch, dichloromethane Dip, diisopropyl ether E, ethanol EA, ethyl acetate Et, ether Ip, 2-propanol M, methanol Me2SO, dimethyl sulfoxide P, 1-propanol Pe, petroleum ether Py, pyridine Tch, tetrachloromethane T, toluene and W, water. 

Ac AIBN 9-BBN Bn Boc Bu Bz CAN Cbz CD CSA DABCO DAST DBN DBU DCC DDQ DEAD DHP DIAD DIBAL-H DMAP DME DMF DMP DMSO DNB EE Ee Eq Et Fmoc GLC HLADH HMDS HMPA HOBt HPLC Im acetyl 2,2/-azobisisobutyronitrile 9-borabicyclo[3.3.1]nonane benzyl f-butoxycarbonyl butyl benzoyl ceric ammonium nitrate benzyloxycarbonyl circular dichroism camphorsulfonic acid 1.4- diazabicyclo[2.2.2]octane A,A-Diethylaminosulfur trifluoride 1.5- diazabicyclo[4.3.0]non-5-ene l,8-diazabicyclo[5.4.0]undec-7-ene A,A -dicyclohexylcarbodiimide 2.3- dichloro-5,6-dicyano-1,4-benzoquinone diethyl azodicarboxylate 3.4- dihydro-2//-pyrane diisopropyl azodicarboxylate diisobutylaluminum hydride 4-A,A -dimethylaminopyridine 1,2-dimethoxyethane A,A -dimethylformamide Dess -Martin periodinane [1,1,1 -tris(acetyloxy)-1,1 -dihydro-1,2-benziodoxol-3-( IH) -one] dimethyl sulfoxide 3.5- dinitrobenzoyl 2-ethoxyethyl enantiomeric excess molar equivalent ethyl 9-fluorenylmethoxycarbonyl gas-liquid chromatography horse liver alcohol dehydrogenase 1,1,1,3,3,3 -hexamethyldisilazane hexamethylphosphoric triamide 1 -hydroxybenzotriazole high-performance liquid chromatography 1-imidazolyl or imidazole... 

Abarbi et al. (OOJOC4618) reacted 3-bromopropene and 2-bromomethylacrylic acid ethyl ester with the Grignard reagent derived from 1,5-dimethyl-3//-5-iodo-2-phenylpyrazol-3-one and diisopropyl magnesium, and obtained the corresponding 4-allyl-1,5-dimethyl-2-phenyl-1,2-dihydropyrazol-3-one and 2-(l, 5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-17/-pyrazol-4-ylmethyl)acrylic acid ethyl ester, respectively. 

Preparation of the lower dialkyl sulfides by the following general procedure has been described by McAllan and his co-workers 286 Sodium sulfide nonahydrate (1.5 moles) is dissolved in water (250 ml) in a three-necked flask fitted with a reflux condenser, dropping funnel, and stirrer, then the alkyl halide (2 moles) is added slowly with vigorous stirring. When the very exothermic reaction ceases, the mixture is heated under reflux for a further 3 h and the sulfide is distilled over in steam, separated, washed with water, 10% sodium hydroxide solution, and again water, dried over calcium chloride, and distilled. In this way were obtained dimethyl (b.p. 37.3°), diethyl (b.p. 92°),287 diisopropyl (b.p. 119.8°), dipropyl (b.p. 142.8°),288 and bis-(2-cyanovinyl) sulfide (m.p. 142-143°, from ethyl acetate-cyclohexane).289... 

In the case of the reaction of aldehyde with ethanol, the per cent conversion into acetal in a mixture of five moles of alcohol with one mole of aldehyde is, for acetaldehyde, 78 per cent for dimethyl-acetaldehyde, 71 per cent and for trimethylacetaldchyde 56 per cent. Similarly, when the ketone is allowed to react with ethyl orthoformate to form the ketal, the order of decreasing amount of ketal formed is dimethyl ketone, methylethyl ketone, diisopropyl ketone, methyl butyl ketone, ethyl leri-butyl ketone, butyl isopropyl ketone and di-butyl ketone. Thus one is led to expect that the... 

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