2- -2-bromo-4,5-diphenyl

ClgHiiBr02S2, 3-Bromo-2,5-diphenyl-1,4-dithiin 1,1-dioxide, 46B, 362 ClgHi2OS2, 2,5-Diphenyl-1,4-dithiin-1-oxide, 37B, 185 ClgHi2S3, 2,5-Bis(2-thienylvinyl)thiophene, 44B, 328 C1gH14N2O2S, 2S,3S-1-Cyano-2-hydroxy-3,4-epithiobutane-a-naphthylur-ethane, 38B, 358... 

TSCA significant new uses subject to reporting ofp-bromo-diphenyl ether... 

Seyer A, Riu A, Debrauwer L, Bourges-Abella N, Brunelle A, Laprevote O, Zalko D (2010) Time-of-flight secondary ion mass spectrometry imaging demonstrates the specific localization of deca-bromo-diphenyl-ether residues in the ovaries and adrenal glands of exposed rats. J Am Soc Mass Spectrom 21 1836-1845. doi 10.1016/j.jasms.2010.06.019... 

Tellnran(IV) Bromo-diphenyl-iodo-E12b, 586 (Bromoiodier.)... 

Great Lakes DE. [Great Lakes] Bromo-diphenyl oxide compds. flame retar-dtnt for diermosetting, diermc lastic, and elastomeric systems. 

N N 3-( p-Bromophenyl)-4-methyl- 1,2,5-oxadiazole 2-oxide 3-(p-bromo-phenyl)-4-methyl-l,2,5-oxadiazole 5-oxide 3,4-diphenyl-l,2,5-oxadiazole... 

Bromo-TmethyIbenzo[c]pyrazoIo[l,2-a]pyrazoIe-3,9-dione 4-(p-ChIorobenzaI)-l,3-diphenyl-2-pyrazoIin-5-one... 

Chroman-4-one, 3-bromo-2-hydroxy-synthesis, 3, 856 Chroman-4-one, 2-/-butyl- H NMR, 3, 583 Chroman-4-one, 3-/-butyl- H NMR, 3, 583 Chroman-4-one, 2,3-dibromo-dehydrobromination, 3, 828 Chroman-4-one, 3,3-dibromo-dehydrobromination, 3, 828 Chroman-4-one, 2,3-dihalogeno-synthesis, 3, 856 Chroman-4-one, 2,2-dimethyl-mass spectra, 3, 617 Chroman-4-one, 2,2-diphenyl-synthesis, 3, 852 Chroman-4-one, 3-hydroxy-synthesis, 3, 856... 

Yields of 54% of 2-methoxy-4 -methyl diphenyl ether from -bromotoluene and guaiacol, and 60% of 2-mcthoxy-5-methyl-diphenyl ether from 3-bromo-4-methoxytoluene and phenol, have been obtained by the same method in the laboratory of the submitters,... 

Enby 6 is an example of a stereospecific elimination reaction of an alkyl halide in which the transition state requires die proton and bromide ion that are lost to be in an anti orientation with respect to each odier. The diastereomeric threo- and e/ytAra-l-bromo-1,2-diphenyl-propanes undergo )3-elimination to produce stereoisomeric products. Enby 7 is an example of a pyrolytic elimination requiring a syn orientation of die proton that is removed and the nitrogen atom of the amine oxide group. The elimination proceeds through a cyclic transition state in which the proton is transferred to die oxygen of die amine oxide group. 

The 2,2 -bis(phenylthiomethyl) dispiroketal (dispoke) derivative is cleaved by oxidation to the sulfone, followed by treatment with LiN(TMS)2. The related bromo and iodo derivatives are cleaved reductively with LDBB (lithium 4,4 -di- -butylbiphenylide) or by elimination with the P4- -butylphosphazene base and acid hydrolysis of the enol ether. The 2,2-diphenyl dispiroketal is cleaved with FeCl3 (CH2CI2, rt, overnight)." The dimethyl dispiroketal is cleaved with TFA, and the allyl derivative is cleaved by ozonolysis followed by elimination. ... 

Many stilbenelike thiophene compounds have been prepared for a study of estrogenic activity, especially by Buu-Hoi et al. Thiophene derivatives of nonhydroxylated stilbene types showed no significant activitywhereas weak estrogenic activity was found in 5-acetyl-, 5-propionyl-, and 5-benzoyl-2-(-stilbenyl)thiophene. 1-Bromo-l,2-diphenyl-2-(5-bromo-2-thienyl)ethylene (258) was found to inhibit body growth and to produce extensive testicular atropy in male rats. A thiophene analog of estrogenic isoflavones (259)... 

Bromination of the diphenyl indole derivative 316 with bromine in DMF or trimethylammonium bromide afforded the 7-bromo derivative 317. Reaction with allyl bromide or its derivatives gave A-allyl derivatives 318 that upon cyclization with palladium acetate gave 7,9-dimethoxy-l,2-diphenylpyrrolo[3,2,l-// ]quinoline derivatives 319 (92T7601) (Scheme 57). 

To a stirred suspension of 16 parts of 4-bromo-2,2-diphenylbutyric acid in 150 parts of chloroform are added dropwise 16 parts of thionyl chloride and the whole is stirred and refluxed for 2 hours. The reaction mixture is evaporated, yielding 4-bromo-2,2-diphenyl-butyrylchloride as a residue. 

The bromo derivative 16 reacts with phenylmagnesium bromide in diethyl ether, followed by workup with 5% aqueous hydrobromic acid, to give 2-methyl-4,5-diphenyl-2//-2,3-benzo-diazepin-l(5//)-one (17) in 55% yield.137 No further details were reported. 

Finally, 2-allyl-4,5-tra ,s-diphenyl-l,3-bis(4-methylphenylsulfonyl)-l,3,2-diazaborolidincs have been used74. The 2-propenyl derivative undergoes highly stereoselective reactions with achiral aldehydes (95 - 97% ee) the ( )-2-butenyl derivatives (91-95% ee) and the analogous 2-chloro- and 2-bromo-2-propenyl derivatives (84-99% ee) also give excellent results in reactions with achiral aldehydes. 

CHAIN ELONGATION OF ALKENES via gem-DIHALOCYCLOPROPANES l,l-DIPHENYL-2-BROMO-3-ACETOXY-l-PROPENE... 

B. l,l-Diphenyl-2-bromo-Z-acetoxy- -j>ropene. A 250-ml. flask equipped with a condenser is charged with 17.6 g. (0.050 mole) of 1,1-dibromo-2,2-diphenylcyclopropane, 12.5g. (0.075 mole) of silver acetate [Acetic acid, silver(l +) salt] (Note 4), and 50 ml. of glacial acetic acid, then immersed in an oil bath at 100-120° for 24 hours (Note 5). After cooling, the mixture is diluted with 200 ml. of ether and filtered. The ethereal filtrate is washed with two 100-ml. portions of water, two 100-ml. portions of aqueous saturated sodium carbonate, and finally with two 100-ml. portions of water. After drying over anhydrous sodium sulfate, the ether is removed on a rotary evaporator. Distillation of the resulting residue under reduced pressure yields 12.0 g. (72%) of the product, b.p. 142-145° (0.15 mm.), 1.6020-1.6023 (Note 6). 

L PROLYLGLYCYLGLYCINE,At CARBO BEN ZOXY-3-HY DROXYETHYL ESTER [GLYCINE,N [AT 13-HYDROXY 1 -[ (PHENYLMETH-OXY)CARBONYL] -L PROLYL] GLYCYL] -, ETHYL ESTER], 88 Propane, 1-mtro-, 36 1,3 Propanedithiol, 9 Propanoic acid, 2-chloro-, 70 1-PROPENE, 3 ACETOXY-2-BROMO-1,1-D1PHENYL- [2-PROPFN-l-OI, 2-BROMO 3,3 DIPHENYL, ... 

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