2- chlorophenyl ethyl

Photolytic. When profenofos in an aqueous buffer solution (pH 7.0) was exposed to filtered UV light (X >290 nm) for 24 h at 25 and 50 °C, 29 and 56% decomposed, respectively, to 4-bromo-2-chlorophenol and 4-bromo-2-chlorophenyl ethyl hydrogen phosphate. Both compounds were also identified in soil irradiated with UV light. 

Chlorophenyl) ethyl]amine-2-14 C (407) has been obtained by reduction of 405 with LAH-AICI3620. [2-[p- ( Trifluoromethyl)phenyl]ethyl]amine-2-14C(408) has been obtained similarly from 406. [2-[p-(Trifluoromethyl)phenyl]ethyl]amine-1-14C (409) has been obtained by reduction of 2-[/7-(trifluoromethyl)phenyl]ethanenitrile-l-14C by the same method. N,N-Dimethyl-N-[2-(p-chlorophenyl) ethyl]amine-2-14C has been obtained by reductive amination of 407621. N,N-Dimethyl-N-[2-(p-chlorophenyl)ethyl]amine-1 -14C, N, N-dimethyl-N-[2-[p- (trifluoromethyl)phenyl]ethyl]amine-2-14C and N,N-dimethyl-N-[2-[p-(chlorophenyl)phenyl]ethyl]amine-1-14C have been prepared by reductive amination of [2-(/ -chlorophenyl)ethyl]-amine-l-14C, 408 and 409, respectively. 

Several chiral substituted a-phenyl-alkyl alcohols, which were partially enantio-merically enriched, were successfully purified by this method after esterification with 9-anthroic acid optical purities higher than 95% were obtained.Fluorescence studies of racemic compounds show a characteristic a-type excimer emission, whereas the chiral enantiomer exhibits a typical y-type monomer emission. Figure 7 shows the spectra of l-(2-chlorophenyl)ethyl 9-anthroate for a crystalline sample of enantiomeric (1) and racemic (2) at 77 K. It has been demonstrated that in the absence of configurational disorder chiral impurities in the range of 1 % can be detected by this method. ... 

A similar situation occurred when the (2-chlorophenyl)methyl was replaced with related structures. For example, the l-(2-chloro-phenyl)ethyl and the 2-(2-chlorophenyl)ethyl analogs not only were ineffective in weed control, but the typical bleaching response was also absent. 

Internal standard l-[2-(dimethylamino)-l-(2-chlorophenyl)ethyl]cyclohexanol(Wy-45,818) (19.74, 22.38 (enantiomers))... 

Tebuconazole (provided by Bayer), Q -[2-(4-chlorophenyl)ethyl]-o -(l,l-dimethyl-ethyl)-li/-l,2,4-triazole-l-ethanol. Molar mass 307.8, (M- -H)+ ion observed at approximately m/z 308.1 [liquid chromatography/mass spectrometry (LC/MS)] Tebuconazole-fnflzoZe-i,2,4-- fV3 (provided in acetonitrile solution by Bayer), [ NsJtebuconazole stable-isotope internal standard, o -[2-(4-chlorophenyl)ethyl]-Q -(l,l-dimethylethyl)-li/- A3-l,2,4-triazole-l-ethanol. Molar mass 310.8, (M -I- H)+ ion observed at approximately m/z 311.1 (LC/MS)... 

Saunders and co-workers (Amin et al., 1990) used E2 elimination reactions in the p-substituted 2-phenylethyl system to test the new criteria for tunnelling suggested by the above calculations. The actual substrates and base/solvent systems they used were (2-phenylethyl-2-f)-trimethylammonium bromide, [19], with sodium ethoxide in ethanol, 2-phenylethyl-2-f bromide, [20], with potassium t-butoxide in t-butyl alcohol and 2-(p-chlorophenyl)ethyl-2-f tosylate, [21], with potassium t-butoxide in t-butyl alcohol. When equation (57) was applied to the experimental secondary (kB/ S) KIEs in Table 39, the calculated /th h KIEs were 1.106 0.033 and 1.092 0.026 for [19] and [21],... 

The PFR also takes place with aryl alkyl carbonates [125]. Methoxy-substi-tuted dervatives can undergo substitution of MeO by the acyl moiety, as has been reported for esters and amides. This is shown in Scheme 47 for 2-methoxyphenyl ethyl carbonate (168) [126]. On the other hand, the overall quantum yield of photoproducts is 10-fold lower in the para-than in the ortho- or (meta- me-thoxyphenyl. Chlorophenyl ethyl carbonates do not rearrange, but undergo C—Cl homolysis. The efficency of photodechlorination follows the order para < meta < ortho [127],... 

C. N-Hydroxy-4-(p-chlorophenyl)thiazole-2(3H)-thione. O-Ethyl S-[2-oximino-2-(p-chlorophenyl)ethyl]dithiocarbonate (56.0 g, 0.19 mol) is placed in a 500-mL round-bottomed flask that is equipped with a magnetic stir bar. Diethyl ether (120 mL) is added and the slurry is treated at 0°C in small portions with solid anhydrous zinc chloride, ZnClj, 79.1 g, 0.58 mol) at such a rate that the solvent does not boil constantly (Note 8). After the addition is complete, the flask is stoppered with a drying tube (CaCl2) and stirring is continued for 48 hr at 20°C. The reaction mixture turns into a dear, dark brown solution that solidifies toward the end of the reaction. The flask is immersed in an ice bath and treated dropwise with 5.5 M hydrochloric add (140 mL, Note 9). The precipitate dissolves immediately. Stirring is continued for 30 min at 0°C whereupon a tan-colored solid separates. This material is collected by filtration. It is washed with small portions of diethyl ether (total of 110 mL) and dried to afford 39.8 g (86%) of N-hydroxy-4-(p-chlorophenyl)thiazole-2(3H)-thione (Note 10). The crude material is transferred to a 2-L, round-bottomed flask equipped with a reflux condenser. 2-Propanol (760 mL) is added and the reaction mixture is heated to reflux. Once a dear solution is obtained the heat source is immediately removed (Note 11). The solution is allowed to cool to room temperature. Precipitation of N-hydroxy-4-(p-chlorophenyl)thiazole-2(3H)-thione is completed by immersing the flask for 30 min in an acetone-dry ice bath (-78°C). The product is collected by filtration and dried to afford 21.9 g (53.5%) of N-hydroxy-4-(p-chlorophenyl)thiazole-2(3H)-thione as tan crystals (Notes 12,13). 

Ethyl S-[oximino-2-(p-chlorophenyl)ethyl]dithiocarbonate Carbonodithioic acid, S-[2-(4-chlorophenyl)-2-(hydroximino)ethyl], 0-ethyl ester (14) (195213-53-7)... 

CHEMICAL NAME = l-chloro-2-[2,2,2-trichloro-1-(4-chlorophenyl)ethyl]benzene CAS NUMBER = 50-29-3 MOLECULAR FORMULA = C14H9Cl5 MOLAR MASS = 354.5 g/mol COMPOSITION = C(47.4%) H(2.6%) Cl(50.0%)... 

C,C yield of arylated products with 4-[l-(4-chlorophenyl)ethyl]-l,2-dimethylbenzene as main product. 

Chemical Name Benzenamine, 4-(((2-(2-(4-chlorophenyl)ethyl)-2-(lH-imidazol-l-ylmethyl)-l,3-dioxolan-4-yl)methyl)thio)-, (2S,4S)-, hydrochloride... 

A mixture of (+/-)-cis-2-[2-(4-chlorophenyl)ethyl]-2-(imidazol-l-yl)methyl-4-(methylsulfonyloxy)methyl-l,3-dioxolane (31.0 g), 4-aminothiophenol (12.6 g) and anhydrous potassium carbonate (23.1 g) in acetone (250 ml) was stirred overnight under reflux under nitrogen. The reaction mixture was then evaporated to dryness, and the resulting residue was extracted with methylene chloride (300 ml) and filtered. The solid filter cake was then washed with methylene chloride (200 ml). The methylene chloride extracts were then combined and concentrated and flash chromatographed on a silica gel eluting with methylene chloride followed by 30% acetone in methylene chloride. The pure product was dissolved in a minimum amount of hot ethyl acetate (125 ml), the solution diluted with an equal volume of hot hexane and seeded to give 30.0 g of (+/-)-cis-2-[2-(4-chlorophenyl)ethyl]-2-(imidazol-l-yl)methyl-4-(4-amino-phenylthio)methyl-l,3-dioxolane, melting point 121°-122.5°C. 

Phenylethyl) trimethylammonium-2-14C bromide, (2-Phenylethyl) trimethylammoni-um-l-14C bromide, [2-(p-methoxyphenyl)ethylltrimethylammonium-2-14C bromide, [2-(p-methoxyphenyl) ethyl] trimethylammonium-1-C bromide, [2-(p-chlorophenyl) ethyl]-... 

DICHLORO-2,2-BIS(p-CHLOROPHENYL)-ETHYL-ENE p,p -DICHLORODIPHENYLDICHLORO-ETHYLENE l,l -piCHLOROETHENYLIDENE)BIS(4-CHLOROBENZENE) NCI-C00555... 

CHLOROPHENYL)ETHYL)PHENYL)-l,2,3,4-TETRAHYDRO-l-NAPHTHALENYL)-4-HYDROXY2H-1-BENZOPYRAN-2-ONE see CKA030... 

ETHYL-S-(3-METHYL-4-CHLOROPHENYL)ETHYL PHOSPHONODITHIOATE see EMRIOO... 

C8H9N02 4-amino-3-methylbenzoic acid 2486-70-6 518.92 45.705 2 13825 1 C8H10CIN 2-(3-chlorophenyl)ethyl amine 13078-79-0 501.03 43.983 2... 

Problem 25.10 Describe simple chemical tests (if any) that will distinguish between (a) bromobenzene and //-hexyl bromide (b) /7-bromotoIuene and benzyl bromide (c) chlorobenzene and 1-chloro-1-hexene (d) a-(p-bromophenyl)ethyl alcohol (/ -BrC(>H4CHOHCHx) and p-bromo-//-hexylbenzenc (e) a-(p-chlorophenyl)ethyl alcohol and j8-(p-chlorophenyl)ethyl alcohol (/7-CIC6H4CH2CH2OH). Tell exactly whai you would do and see. 

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