5-Diphenylamino-2-phenyl

Wienk and Jansen (1996) have designed fV,fV -bis[4-(diphenylamino)phenyl]-fV,fV -diphenyl-l,3-diaminobenzene (Scheme 1.35). 

Tokuhisa et al. (1995) investigated electron transport in a series of oxadiazole derivatives doped into PC. The derivatives were 2-(4-biphenyl)-5-(4-/-butyl-phenyl)-l,3,4-oxadiazole (PBD), 2,5-bis(l-naphthyl)-l,3,4-oxadiazole (BND), 2,5-bis(3-methoxyphenyl)-l,3,4-oxadiazole (BMD), 2,5-bis(4-diphenylamino-phenyl)-l,3,4-oxadiazole (BAPD), and 2,5-bis(4-diphenylaminophenyl)-l,3,4-oxadiazole (BDD). Electron transport in these materials has been described in the preceding section. By the incorporation of a donor functionality (diethyl-amino or diphenylamino) into the oxadiazole skeleton, both hole and electron transport were observed. For BDD doped PC, jxn = 6.5x 10-8 cm2/Vs and Up = 9.8 x 10-8 cm2/Vs (the field was not specified). The work of Murray et al. (1996), Kaeding et al. (1996), and Tokuhisa et al. are the only references to... 

Sharma and coworkers [278] reported synthesis of two low-band gap copolymers. One consists of alternating dihexyloxyphenylene and ot-[4-(diphenylamino)phenyl methylene]-4-nitrobenzene acetonitrile. The other one consists of alternating dihexyloxyphenylene and a,a -[(l,4-phenylene) dimethylidyne]bis(-4-nitrobenzene acetonitrile) ... 

Trichlor-l-diphenylamino- 570 Trichlor-(pcntachlor-phenyl)- 627 Trifluor- 403... 

Weaker O—H- n hydrogen bonds were also observed in M dipheny-laminosquarate complexes (M = Mn, Co, Cu, Zn) and involve the interaction of aqua hydrogen atoms and the phenyl groups of neighboring diphenylamino substituents (134) (Fig. 31). 

Acetyl-1-trimethylsiIyl- 2965 -Benzyliden- 2909, 2942, 2943, 2945 -(Bis-[dimethylamino]-methylen)- 2909, 2965 (Bis-[4-dimethylamino-phenyl]-methylen)- 2909 (Bis-[diphenylamino]-methylen)- 2909 (Bis-[4-niethoxy-phenyl]-methylen)- 2909, 2946, 2964... 

The use of lower temperatures in the bromate-induced monobromopenta-hydroxylation of benzene by catalytic photoinduced charge transfer osmylation favours formation of the neo diastereoisomer of the deoxybromoinositol. Photolysis of N-(diphenylamino)-2,4,6-trimethylpyridinium tetrafluoroborate and N-[bis(4-methylphenyl)amino]-2,4,6-trimethylpyridinium salts induces nucleophilic addition of various 7i-nucleophiles such as electron rich alkenes to the o- and p-positions of one of the phenyl rings.These observations are thought to imply the presence of the diarylnitrenium ion (Ar2N ) as intermediate, but evidence is also presented for the involvement of radical species, as well as for the formation of indoles and indolinones. Some MO calculations are also reported. 

The alternative approach is the preparation of an azabicyclopentadiene derivative by dipolar addition of a cyclobutene to oxazolium 5-oxides <84CHEC-I(7)49l) and also to nitrile ylides <83M1145>. An extension to this method is the addition of cyclopropenones to azetines <83HCA1366>. Thus (221), formed by addition of diphenylcyclopropenone to 2-diphenylamino-3,3-dimethyl-4-phenyl-1-azetine, is hydrolyzed in HCl/EtOH at room temperature to (222) in 86% yield. 

Diphenylamino-4.6-diozo-2-phenyl-5-benzoyl-1.4.5.6-tetrahydro-pyrldiii -211442. 

CliHigByCoNi, 2,3-Di-r -cyclopentadienyl-10-carba-(2,3)(nickelaco-balta)decaborane(8)(Ni-Co), 44B, 576 Cl1H30B18Cs2Fe20e, Dicaesium di-M carbonyl-bis(tt-(3)-1,2-dicarbo-llylcarbonyliron) acetone hydrate, 35B, 432 C12H9BO2, 2-Phenyl-l,3,2-benzodioxaborol, 40B, 587 Cl2H10BCI2N, Dichloro(diphenylamino)borane, 41B, 708... 

---