Diphenylcarbamyl chloride

Diphenylurethanes. Phenols react with diphenylcarbamyl chloride to yield diphenylurethanes (or aryl iV,iV-diphenylcarbamate8) ... 

Dissolve 0-5 g. of the phenol in 2-5 ml. of pyridine, and add one equivalent of diphenylcarbamyl chloride (or 0-4-0-5 g. if the molecular weight is uncertain). Reflux the mixture for 30-60 minutes on a boihng water bath, and then pour into about 25 ml. of water. Filter the derivative, wash with a httle sodium bicarbonate solution, and recrystallise from alcohol benzene, hght petroleum (b.p. 60-80°) or carbon tetrachloride. 

Diphenylcarbamide (or Diphenylcarbamyl) Complexes, proposed by Levy (See Ref) as suitable stabilizers and gelatinizers in smokeless propellants, were prepd by Interaction of diphenylcarbamyl chloride (DPhCCl),... 

Diphenic acid, bl37 Diphenylacetone, d684 Diphenylcarbamyl chloride, d659. vym-Diphenylcarbazide, d660 Diphenyldiazone, a322 Diphenylethanedione, b34... 

Preparation of Polymeric Substrates. Crosslinked polystyrene containing carboxyl groups was prepared by the Letsinger method. (27) Diphenylcarbamyl chloride (18.5 g, 80 mmole) in 40 ml nitrobenzene was added over a period of 15 min to a well-stirred mixture of 8.3 g (80 mmole) Bio-Bead SX2 and 15.0 g (0.113 mole) of aluminum chloride in 350 ml of dry nitrobenzene. The dark mixture was then warmed at 80 C for 2.5 hr, cooled and treated with 200 ml of water. The resin was separated and washed in succession with dilute hydrochloric acid, methanol, and ether. For hydrolysis, the carboxamido pol3rmer was heated at 103-138 C for 32 hr with a... 

Friedel-Crafts acylation Aluminum bromide. Aluminum chloride. Diphenylcarbamyl chloride. Methylene chloride. 

A soln. of Na in alcohol treated with n-butyl mercaptan, the resulting soln. of the mercaptide then added to an ale. soln. of N,N-diphenylcarbamyl chloride, and warmed 5 min. on a steam bath n-butyl N,N-diphenylthiocarbamate. Y 80-95%.—The reaction occurs readily and gives products which can be easily purified. F. e. R. G. Hiskey et al., J. Org. Chem. 26, 4756 (1961). 

Tryptic peptides (1/15 M phosphate buffer, pH 8.0, 37 °C, 20— 25 h, trypsin treated with diphenylcarbamyl chloride, substrate/enzyme = 100— 250, w/w) were obtained in good yields as illustrated in the chart of the complete amino-acid sequences (cf. Chart VIII-9). 

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