P-Pheny lenediamine

Di-sec-butyl percarbonate (SBP), 6 303 Di-sec-butylphenol (DSBP), 2 230 physical properties of, 2 205t 2,4-Di-sec-butylphenol, 2 230 2,6-Di-sec-butylphenol, 2 230 health and safety data, 2 220t N, N -Di-sec- bu tyl-p -pheny lenediamine, 3 108 Dished electrode membrane (DEM) cell, 9 669... 

Total or partial insolubility is observed with hydrocarbons and with the compds contg NOa or halogen groups. For instance, AN is miscible in all proportions with mannitol, resorcinol, urea and acetamide, while with p-pheny-lenediamine it forms a mol compd in the ratio of 3 parts AN to 1 p of the diamine. In the liquid state AN is partially miscible with m-phenylenediamine, PA, TNT and cholesterol. Eutectic mixts are formed with many of the organic compds investigated by K... 

The fluorescence of A V -diethylaniline, N,NtN, N -tetramethyl-p-pheny-lenediamine (TMPD) and tetrakis(dimethylamino)ethylene has been repor-... 

Chlorine is passed into 250 c.cs. water containing 45 gms. caustic soda until the total weight is 332 gms. 750 c.cs. of ice-water are then added. A solution prepared from commercial sodium hypochlorite (p. 512) may be employed. Into the cold solution are slowly run 27 gms. p-pheny-lenediamine hydrochloride in 300 c.cs. of water and 60 c.cs. of cone, hydrochloric acid. After the blue colour disappears the dichlorimide separates, is filtered and washed with water until the filtrate is free from chlorine it is then recrystallised from 70% alcohol or petroleum ether (40°—60°). 

CijHigOg, Mr 374.35, prisms, mp. 195 C, yellow color with KOH and p-pheny lenediamine, soluble in benzene and chloroform. A. is a depside with antibiotic properties occurring in many lichens (e.g in Hypogymnia physodes and Lecanora atra). The biosynthesis proceeds via acetyl-CoA and orsellinic acid. 

As is the case with most vitamins, it is not the vitamin but one of its metabolites that is responsible for the physiological effect. DeLuca [11] discovered a vitamin metabolite that is highly active on the intestine. The metabolite has been identified as 25-hydroxycholecal-ciferol (see Fig. 5-5) it is produced in liver exclusively. The hydroxylation of vitamin D appears to occur in liver by the catalytic effect of a hydroxylase that requires NADPH but is insensitive to traditional inhibitors of lipid peroxidases (N,N -diphenyl, p-pheny-lenediamine) [12]. 

Lattimer, R.P., et al., Mechanisms of Ozonation of N,Ff -Di-(l-Methylheptyl)-p-Pheny-lenediamine, The B.F. Goodrich Research and Development Center, presented at the Rubber Division, A.C.S. Meeting in Las Vegas, May 20-23, 1980. 

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