Phenyl 2-phenylethenyl

CuHi202S, (rans-Phenyl styryl sulfone [( )-(2-Phenylethenyl)sulfonylbenzene]... 

It is interesting to note that [(E)-2-phenylethenyl]-[018]phosphonic dichloride (116) upon treatment with (-)-ephedrine (42) in the presence of triethylamine afforded an equimolar mixture of (2S,4S,5R)- and (2/ ,4S, 5/ )-2,3-dimethyl-5-phenyl-2-[(E)-2-phenylethenyl]-l,3,2-oxazaphospholidin-2-[180]one 117a and 117b. The two diastereomers were completely separated by flash chromatography and the diastereomer 117b was hydrolyzed with water H20-170 to the corresponding monoester 118 which was finally converted to dihydro-(l,2-dibromo-2-phenyl- 1-ethyl) (R)-160,170,180 phosphonic acid 119 (Scheme 33) [66],... 

ACETONE TRIMETHYLS ILVL ENOL ETHER SILANE, (ISOPROPE NYLOXY )TR IMETHYL SILANE, TRIMETHYL[(1-METHYLETHENYL)0XY]- (1833-53-0), 65, 1 Acetonitrile, purification, 66, 101 Acetophenone Ethanone, 1-phenyl- (98-86-2), 65, 6, 119 Acetophenone silyl enol ether Silane, trimethyl[(1-phenylvinyl)oxy] Silane, tririethyl[(l-phenylethenyl )oxy]- (13735-81-4), 65, 12 4-ACET OXYAZET ID IN-2-ONE 2-AZET IDINONE, 4-HYDROXY-ACETATE (ESTER) 2-AZET ID1N0NE, 4-(ACETYL0XY)- (2 8562 - 53-0), 65, 135 Acetylene Ethyne (74-86-2), 65, 61... 

Phenyl-N-(phenylmethylene)-l-propen-1-amine 1-Propen-1-amine, 2-phenyl-N-(phenylmethylene)-, (64244-34-4), 65, 119 (E)-3-[(E)-3-Phenyl-2-propenoxy]acry1lc acid, (88083-18-5), 66, 30, 31, 36 ( )-trans-2-(PHENYLSULFONYL)-3-PHENYLOXAZIRIDINE, 66, 203, 204 1-Phenyl-1-trimethylsiloxyethylene Silane, tnmethyl[(1-phenylvinyl)oxy]-, Silane, trimethyl[(l-phenylethenyl)oxy]- (13735-81-4), 65, 6 Phosphonate synthesis, 66, 194... 

This complex is stable and almost insoluble in common organic solvents. It has a mp 248 °C (dec under air in a capillary tube). The complex reacts with styrene in refluxing m-xylene in the presence of triethylamine to form trans-2-[[2-(2-phenylethenyl)phenyl]methyl]pyridine in 44% yield.7... 

The reactions of poly(styryl)lithium in benzene with an excess of diphenyl-ethylene 272) and bis[4-(l-phenylethenyl)phenyl]ether158) also were found to proceed by a first order process. However, the reactions of poly(styryl)lithium with the double diphenylethylenes l,4-bis(l-phenylethenyl)benzene and 4,4 bis(l-phenyl-ethenyl)l,l biphenyl gave l58) non-linear first order plots with the gradients decreasing with time. This curvature was attributed to departure from a geometric mean relationship between the three dimerization equilibrium constants (Ka, Kb and Kab). The respective concentrations of the various unassociated, self-associated and cross-associated aggregates involved in the systems described by Equations (49) to (51) are dependent upon the relative concentrations of the two active centers and the respective rate constants which govern the association-dissociation events. 

Phenyl-l-trimethylsiloxyethylene Silane, trimethyl[(l-phenylvinyl)oxy]-(8) Silane, trimethyl[(l-phenylethenyl)oxy]- (9) (13735-81-4)... 

In a recent series of studies focused on the synthetic utility of alkenyliodo-nium salts, ( )-/J-phenylethenyl(phenyl)- and ( )-l-hexenyl(phenyl)iodonium tetrafluoroborates, 22 and 23, were utilized for alkenylations of a range of soft, anionic nucleophiles (Scheme 45) [128-135]. In all cases but one, alkenylations with 22 occurred with retention of configuration, while alkenylations with 23 occurred with inversion of configuration. Only the dialkyl phosphoroselenolate salts gave mixtures of (Z)- and (fj)-products with 22 [132]. Furthermore, although cuprous iodide was used to catalyze the reactions of 22 and 23 with the phosphorothioate and -dithioate salts, the stereochemical results were the same [131,133]. It was generally assumed that retention was an outcome of the ligandcoupling or addition-elimination pathways, while stereochemical inversion was attributed to the vinylic... 

Synthetic utilization of non-(homo)polymerizable diolefins has been first shown for the coupling reaction of living PIB [69, 70]. Using 2,2-bis[4-(l-phenylethenyl)phenyl]propane (BDPEP) or 2,2-bis[4-(l-tolylethenyl)phe-nyl]propane (BDTEP) as a coupling agent (Scheme 6), a rapid and quantita-... 

Similarly, Tung and co-workers (92a) reported dilithium anionic initiators based upon double 1,1-diphenylethylene compounds, such as bis-[4-(l-phenylethenyl)phenyl] either (21a). 

Coupling of dithioacetals with RMgX butadienylsilanes.1 This coupling is possible when catalyzed by Ni(H). Thus 2-(2-phenylethenyl)-l, 3-dithiolane (1) couples with (trimethylsilyl)methylmagnesium chloride in THF in the presence of this nickel complex to form (E,E)-trimethyl(4-phenyl-l,3-butadienyl)silane (3) in 91% yield. 

CE>Phenylethenyl phenyl tellurium in methanol in the presence of triethylamine and palladium(II) chloride produced methyl (E) -phenylethenecarboxylate in 71 % yield2. With acetonitrile as the solvent without triethylamine but with lithium chloride other than triethylamine, fTiJ-2-phenylethene carboxylic acid was obtained in 41 % yield with the (Z)-compound as a minor impurity3. 

Bis[2-chloro-2-phenylethenyl] Tellurium Dichloride3 The yellow solution of 1.5 g (4 mmol) of 2-chloro-2-phenyl ethenyl tellurium trichloride in glacial acetic acid is heated until it becomes colorless. The solution is cooled to crystallize the product which is filtered off and recrystallizcd from glacial acetic acid yield 0.80 g (83%) m.p. 205-215" (dec.). 

ALKENYL HALIDES (Z)-g-[2-(N,N-DIMETHYLAMIN0)PHENYL]STYRENE (Benzenaalne, N,N-d1 ethyl-2-(2-phenylethenyl)-, (z)-)... 

C. (E)-3,3-Dimethyl-l-phenyl-1 -butene. In a 1-L, two-necked, round-bottomed flask fitted with a reflux condenser, rubber septum, and a magnetic stirring bar are placed 17.8 g (0.08 mol) of 2-methyl-2-(2-phenylethenyl)-1,3-dithiolane and 2.17 g (0.004 mol) of [1,3-bis(diphenylphosphino)propane]nickel(ll) chloride [NiCl2(dppp)] (Note 5). The flask is evacuated and flushed with nitrogen three times. To the above mixture is added 300 mL of anhydrous tetrahydrofuran (Note 6). The ether solution of methylmagnesium iodide prepared in Step B is introduced with a double-ended needle in one portion (Note 7). The mixture is heated under reflux for 24 hr, cooled to room temperature, and treated with 200 mL of saturated ammonium chloride solution. 

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