4.5- Diphenyl 2-subst

Diphenyl- -1,1-dioxid 464 Hexyl- 448, 570 Methoxymethyl- 448 Methyl- (subst.) 532... 

Diphenyl-4-oxo- 706 4H-Pyrazol-l-oxid 409 5-Mercapto-3-subst. 339 3-Methyl-5-methylthio-1,2,4-triphenyl- -iodid 340... 

Diphenylamino- 874 2-(l,2-Diphenyl-ethcnyl)- 969, 934 2-(2,2-Diphenyl-ethenyl)- 986 2,4-Diphenyl-1 -ethcnyl-5-(4-oxo-butyl)- 994 2-(1,2-Diphenyl-ethyl)- 960, 969 2-(2,2-Diphenyl-l-fluor-ethenyl)- 986 2-(l, 2-Diphenyl-2-hydroxy-ethyl)- 994 2-[Diphenyl-(l H-imidazol-1 -yl)-methyl]- 991 2-(l, 2-Diphenyl-2-methylthio-ethyl)- 934 2-(2,3-Diphenyl-4-oxo-4-subst.-butyl)- 992 2-(l,3-Diphenyl-ureido)- 965 2-Ethansulfonyl- 979... 

Isopropyl-benzyl- 228 Isopropyl-benzyliden- 228 Isopropy -(2-chlor-phenyl)- 452 Isopropyl-cyclopropyl- 443 (4-Methoxy-phenyl)-benzyl- 228 (4-Methoxy-phenyl)-benzyliden- 228 (4-Methoxy-phenyl)-(2-nitro-benzyliden)- 607 Methyl- 450, 466, 469 Methyl-) 2- amino-athyl)-benzyl- 122 Methyl-(2-amino-athyl)-cyclohexyl- 132 Methyl-(2-amino-athyl)-cyclopentyl- 132 Methyl-(2-amino-athyl)-propyl- 132 (2-Methylamino-propyl)-cyclopropy]-benzyJ- 452 Methyl-) 2-( 3-amino-propyloxy)-athyl]-benzyl- 135 Methyl-)2-(3-amino-propyloxy)-athy]]-(subst.-benzyl)- 135 Methyl-benzyl- 228, 230 Methyl-benzyliden- 228, 230 (2-Methyl-butyl)-(2,4,6-tribrom-phenyl)- 729 Methyl-cyclohexyl- 418 (l-Methyl-cyclohexyl)-benzyliden- 228 Methyl-diathyl- 493, 674 Methyl-diphenyl- 706 Methyl-(2-nitro-phenyl)-benzoyl- 470 Methyl-phenyl-acetyl- 671 (4-Methyl-phenyl)-benzyliden- 228 Methyl-phenyl-cyclohexylcarbonyl- 646 Methyl-phenyl-hexanoyl- 646 (4-Methyl-phenyl)-(2-nitro-benzyliden)- 607 Methyl-) l-phenyl-propyl-(2)]-... 

When a second pair of phenyl groups is added to C4 and C6 of 1,3-diphenyl-1,5-hexadiene at the value of R = 2.218 A in the TS for Cope rearrangement of the disubstituted diene, Table 30.1 shows that A subst increases in magnitude by 5.3 kcal/ mol. This increase in magnitude is a little more than the factor of 2 that is expected for doubling the number of phenyl substituents at a fixed value of R. It seems likely that the... 

Allylic esters having at least one aryl group and one H-atom attached to the a-carbon atom undergo intramolecular rearrangement, in the presence of strong basic reagents, to give a-allylic subst. acids.—E / -Methylallyl diphenylacetate boiled 22 hrs. in toluene with pulverized NaH—>- 2,2-diphenyl-4-methylpenten-4-oic acid. Y 76%. (F. e. s. R. T. Arnold andS. Searles, Jr., Am. Soc. 71,1150 (1949).)... 

Wei H, Turyk M, Cali S et al (2009) Particle size fractionation and human exposure of polybrominated diphenyl ethers in indoor dust from Chicago. J Environ Sci Health A Toxic/ Hazard Subst Environ Eng 44 1353-1361... 

Alkoxyselenides. A mixture of diphenyl diselenide and (NH4)2S20g in methanol refluxed for 1-1.5 h, after cooling styrene added, and the mixture stirred at room temp, for 0.5 h product. Y 88%. aim-2-Alkoxyselenides were obtained from 1,2-di-subst. olefins. F.e., also a-(arylseleno)acetals from enolesters, 2-hydroxyselenides in aq. acetonitrile, and intramolecular oxyselenation s. M. Tiecco et al.. Tetrahedron Letters 30, 1417-20 (1989). 

Diphenyl phosphoryl azide in dimethylformamide followed by triethylamine added at or below 0° to a soln. of N-carbobenzoxy-L-leucyl-L-leucine and L-valyl-L-phenylalanine methyl ester hydrochloride in the same solvent, stirred several hrs. at the above temp, and overnight at room temp. -> product. Y 87%. - Practically no racemization occurred. F. e., also direct prepn. of urethans from carboxylic acids (cf. Synth. Meth. 17, 393) by a simplified Curtius degradation, s. T. Shioiri, K. Ninomiya, and S. Yamada, Am. Soc. 94, 6203 (1972) Tetrah. Let. 1973, 2343 synthesis of N-subst. carboxylic acid amides and peptides with diethyl phosphoryl cyanide s. Tetrah. Let. 1973, 1595 coupling reagents in peptide synthesis, review, s. Y. S. Klausner and M. Bodansky, Synthesis 1972, 453 review of peptide synthesis s. J. Meienhofer, Chem. Technol. 3, 242 (1973). 

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