2- ethyl phenyl methyl

It has been claimed that the incorporation of 5—1055 of an aliphatic or aromatic abietate (eg ethyl, methyl, phenyl or benzyl ahietates) in single- or double-base propellants reduced the temp of burning and eliminated the muzzle flash... 

If solutes dissolve only in nonpolar or weakly polar solvents, the decision tree suggests that we try reversed-phase chromatography. Our choices include bonded phases containing octadecyl (CJg), octyl, butyl, ethyl, methyl, phenyl, and cyano groups. 

We have a specific interest in the self-assembled structures formed by poly(ferrocenylsilane) block copolymers, such as poly(ferrocenyldimethylsilane-Z -dimethyl-siloxane) (PFS-PDMS) and (ferrocenyldimethylsilane-Z>-isoprene) (PFS-PI). The PFS block contains an iron atom in the main chain repeat unit. These polymers are particularly promising for novel applications, since they can be used as charge-transport materials and, by pyrolysis, as precursors to ferromagnetic ceramics [4-6], Moreover, they can by synthesized with a very narrow molar mass distribution, with excellent control over chain length and composition [7], An important feature of PFS is that the polymers bearing two methyl groups on the silane unit are crystalline, whereas polymers with two different substituents on each silane (methyl, ethyl methyl, phenyl) are atactic and remain amorphous. This feature of the polymer composition has a strong influence on the type of self assembled structures that these poly-... 

Die aus Methanphosphonsaure-difluorid und ot-D-Glucopyranosiden herstellbaren, am P-Atom epimeren l,3,2-Dioxaphosphorinan-2-oxide konnen getrennt und sukzessive mit Phenyl- bzw. Ethyl-magnesiumbromid in R- und S-Ethyl-methyl-phenyl-phosphanoxid umgewandelt werden (5%)232 ... 

So erhalt man z. B. Ethyl-methyl-phenyl-phosphansulfid (Sdp. 108—11070,2 Torr [0,026 kPa]) in 83% Ausbeute bei der Umsetzung von Ethyl-methyl-thiophosphinsaure-chlorid mit Benzol und Aluminiumtrichlorid521 ... 

Dipipcridino-phenyl- E2, 482 Di-2-propinyloxy-ethyl- E2, 196 Dipropyl-(4-methoxy-N-lfaethyl-amlino)- E2, 296 Dipropyl-propyloxy- E2, 212 Divinyl-phenyl- E2 874 Ethoxy-ethyl-methoxycarbonylmethyl- E2, 21 Ethoxy-ethyl-phenyl- E2, 23 Ethoxy-hydroxy-methyl- E2, 130, 131 Ethoxy-hydroxy-phenyl- E2, 131, 185, 187, 190, 422 Ethoxy-(2-propinyloxy)-trifluormethyl- E2, 196 Ethyl-ethylthio-(l-methyl-3-oxo-butyl)- E2, 223 Ethyl-methyl-phenyl- -tosylimid E2, 11.3 Ethyl-pbenyl-propyloxy- E2, 281 F.thyl-phenyl-propylthio- E2, 225. Hydroxy-(2-isopropyl-5-methvl-cyclohexvloxv)-methyl- E2, 392... 

Arsan Ethyl-methyl-phenyl- -sulfid XIII/8, 384... 

Ethyl-methyl-phenyl- XI/1, 36 Methyl-(l-phenyl-ethyl)- -Hydro-chlorid E16d, 734 (N-CHO-Spaltung)... 

Ethyl-methyl-phenyl- (hexafluoro-phosphat) Ell, 424 (S-Alkylier.)... 

The ease of cleaving of Pb—C bonds by Na in liq NH3 is ordered allyl > benzyl s-butyl > n-butyl > ethyl > methyl > phenyl > p-dimethylaminophenyl, consistent with a mechanism involving nucleophilic attack of Na at the carbon atom having the lowest electron density . 

The preparation of methyl-phenyl-pyrazolone illustrates one of the synthetic uses of ethyl acetoacetate, as distinct from those involving the hydrolysis of substitution derivatives. 

Mix 6 2 ml. (6 4 g.) of pure ethyl acetoacetate and 5 ml. of pure phenylhydrazine in an evaporating-basin of about 75 ml. capacity, add 0 5 ml. of acetic acid and then heat the mixture on a briskly boiling water-bath (preferably in a fume-cupboard) for I hour, occasionally stirring the mixture with a short glass rod. Then allow the heavy yellow syrup to cool somewhat, add 30-40 ml. of ether, and stir the mixture vigorously the syrup may now dissolve and the solution shortly afterwards deposit the crystalline pyrazolone, or at lower temperatures the syrup may solidify directly. Note. If the laboratory has been inoculated by previous preparations, the syrup may solidify whilst still on the water-bath in this case the solid product when cold must be chipped out of the basin, and ground in a mortar with the ether.) Now filter the product at the pump, and wash the solid material thoroughly with ether. Recrystallise the product from a small quantity of a mixture of equal volumes of water and ethanol. The methyl-phenyl-pyrazolone is obtained... 

Diethyl ether, b.p. 35 . Di n-propyl ether, b.p. 90. Di propyl ether, b.p. 67 5. Anxsole methyl phenyl ether), b.p. 154 . Phenetole (ethyl... 

Values in parentheses in the columns for Methyl, Ethyl, and Phenyl Esters and for Anhydrides and Nitriles are M.ps. 

Rhodacyanines possess two chromophoric systems. They are at the same time neutrocyanine derivatives, which involves position 5 of the ketomethylene, and methine cyanine, which involves position 2. Following lUPAC s standard nomenclature rules, structure 7 is named 3-ethyl-4-phenyl-2- 4-oxo-3-ethyl-5-[2-(3-ethy]-2,3-dihydro-benzo-l,3-thiazo-lylidene)ethylidene]-tetrahydro-l,3-thiazolylidene-methyl -1.3-thiazolium iodide (Scheme 5). It implies that the 4-phenyl thiazole ring having the... 

At first, the dimeric nature of the base isolated from 3-ethyl-2-methyl-4-phenylthiazolium was postulated via a chemical route. Indeed the adduct of ICH, on a similar 2-ethylidene base is a 2-isopropylthiazolium salt in the case of methylene base it is an anilinovinyl compound identified by its absorption spectrum and chemical reactivity (45-47). This dimeric structure of the molecule has been definitively established by its NMR spectrum. It is very similar to the base issued from 2.3-dimethyl-benzo thiazolium (48). It corresponds to 2-(3 -ethyl-4 -phenyl-2 -methylenethiazolinilydene)2-methyl-3-ethyl-4-phenylthiazoline (13). There is only one methyl signal (62 = 2.59), and two series of signals (63= 1.36-3.90, 63= 1.12-3.78) correspond to ethyl groups. Three protons attributed to positions T,5,5 are shifted to a lower field 5.93, 6.58, and 8.36 ppm. The bulk of the ten phenyl protons is at 7.3 ppm (Scheme 22). 

Reaction of carboxylate ion with nitrophenyl sulfites gives the carboxylate -nitrophenyl esters. If the -nitrophenyl sulfite is unsymmethcal (02NCgH40S(0)0R, where R is ethyl or phenyl), carboxylate attacks the -nitrophenyl side (69). Some amino acids react with methyl and benzyl sulfites in the presence of -toluenesulfonic acid to give methyl and benzyl esters of the amino acids as -toluenesulfonate salts (70). With alcohols, the conversion of henzil to a monoacetal upon addition of sulfuric acid to the henzil in methanol and dimethyl sulfite proceeds in high yield (71). 

The general formula for boric acid esters is B(OR)2. The lower molecular weight esters such as methyl, ethyl, and phenyl are most commonly referred to as methyl borate [121 -43-7] ethyl borate [130-46-9J, and phenyl borate [1095-03-0] respectively. Some of the most common boric acid esters used in industrial appHcations are Hsted in Table 1. The nomenclature in the boric acid ester series can be confusing. The lUPAC committee on boron chemistry has suggested using trialkoxy- and triaryloxyboranes (5) for compounds usually referred to as boric acid esters, trialkyl (or aryl) borates, trialkyl (or aryl) orthoborates, alkyl (or aryl) borates, alkyl (or aryl) orthoborates, and in the older Hterature as boron alkoxides and aryloxides. CycHc boric acid esters, which are trimeric derivatives of metaboric acid (HBO2), are known as boroxines (1). 

Perfumes, Flavors, Cosmetics, and Soap. Many naturally occurring esters in essential oils and some synthetic esters are important fragrance and flavor compounds (61,62). They are used in perfumes, flavors, cosmetics, soaps, detergents, and air fresheners. Benzyl, butyl, ethyl, methyl, and phenyl esters of benzoic acid are used as flavors, perfumes, and food preservatives. Glyceryl 4-aminobenzoate [136-44-7] and 2-ethyUiexyl 4-dimethylaminobenzoate [21245-02-3] are used in cosmetic sunscreen preparations. Alkyl esters of 4-hydroxybenzoic acid, called parabens, have been used under various names for fungus infections of the skin, and as preservatives in lotions and creams (101). Soap and cosmetic fragrances use large amounts of amyl and benzyl saHcylate. Benzyl saHcylate [118-58-1] is also used in deodorant sprays. 2-Ethylhexyl saHcylate [118-60-5] and 2-ethylhexyl 4-methoxycinnamate [5466-77-3] are used in sunscreen formulations (102). 

H-Chromene, 2-ethyl-3-phenyl-synthesis, 3, 764 4H-Chromene, 2-phenyl-synthesis, 3, 763 4H-Chromene, 2,4,4-trimethyl-addition reactions, 3, 669 2 H-Chromene-3-carboxamide reduction, 3, 675 2H-Chromene-3-carboxylic acid methyl ester alcoholysis, 3, 668... 

Methyl-1 -cyclopropylmethyl, 549 1 -Methyl-1 -(p-phenylazophenyl)ethyl, 549 1-Methyl-1-phenylethyl, 549 1 -Methyl-1 -(4 -pyridyl)ethyl, 549 Phenyl, 549... 

Reaction of 2-aminopyridine with ethyl 2-cyano-3-ethoxy-3-methyl-, -3-ethyl-, -3-phenylacrylates and ethyl 2-ethoxycarbonyl-3-ethoxy-3-methyl-, -3-phenylacrylates in boiling xylene yielded 2-substituted 4/f-pyrido[l,2-u]pyrimidine-3-carbonitriles and -3-carboxylates (99MI7). Similar reactions of 2-aminopyridine with 2-cyano-3-ethoxyacrylonitrile and its 3-methyl, 3-ethyl, -3-phenyl derivatives in boiling MeCN afforded 4-imino-4//-pyrido[l,2-u]-pyrimidine-3-carbonitrile and its 2-substituted derivatives. 

Certain of the monoalkylated ethyl phenylacetates have been further alkylated with alkyl and aralkyl halides to produce the corresponding disuhstituted phenylacetic esters.4 Ethyl 2-phenyl-propanoate has been alkylated by methyl iodide to give pure ethyl 2-methyl-2-pheny]propanoate in 81% yield. Similarly, the alkylations of ethyl 2-phenylhexanoate with methyl iodide, M-butyl bromide, and benzyl chloride gave the corresponding pure dialkylated products in 73%, 92%, and 72% yields, respectively. 

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