Phenyl chlorocarbonate

A suspension of 100 g of 7-chloro-6-phenyl-1-methyi-3-hydroxy-1,3-dihydro-2H-1,4-benzodi-azepin-2-one in 700 ml of anhydrous pyridine, kept stirred between 0°C and -t5°C, is slowly treated, during 20 to 30 minutes, with 54.5 ml phenyl chlorocarbonate. The temperature is gradually allowed to rise to 20°-25°C and stirring Is maintained at this temperature during 24 hours. 

Chloro-5-phenyl-l-methyl-3-hydroxy-l,3-dihydro-2H-l,4-benzodiazepine-2-one Phenyl chlorocarbonate Dimethylamine... 

Phenyl isothiocyanate has been prepared from thiocarbanilide by the action of phosphorus pentoxide, hydrochloric acid, iodine, phosphoric acid, acetic anhydride, and nitrous acid. It has also been prepared from ammonium phenyl dithiocarbamate by the action of ethyl chlorocarbonate, copper sulfate lead carbonate, lead nitrate, ferrous sulfate,and zinc sulfate. ... 

Ethyl a-bromoisobutyrate, 21, 53 Ethyl /3-bromopropionate, 20, 6S Ethyl caprylate, 20, 69 Ethyl carbonate, 23, 95, 97 Ethyl chlorocarbonate, 21, 81 2-Ethylchromone, 21, 42 Ethyl diacetylacetate, 21, 46 copper derivative, 21, 46 Ethyl a,a-DIMETHYL-/3-PHENYL-/3-hydroxypropionate, 21, S3 Ethylene chloride, 20, 28 22, 76 ETHYLENEDIAMINE, IV IV-DIBUTYL-, 23, 23... 

This mixed carbonate is prepared from (p-diphenyl)dimethylcarbinol and the phenyl ester of chlorocarbonic acid.1 It is recommended for the N-protection of a-... 

A) Phenyl isocyanate (I) is chlorinated in chloroform, and the /i-chloro-phenylcarbonimidoyl dichloride (II) obtained is reacted with dimethylamine to give p-chlorophenylimino chlorocarbonic acid dimethylamide (III). This is treated with... 

PHENYL ETHYL ALCOHOL (98-85-1) Combustible liquid (flash point 200°F/ 93°C cc). Reacts, possibly violently, with oxidizers, alkalineearth and alkali metals, strong acids, strong caustics, aliphatic amines, isocyanates, acetaldehyde, benzoyl peroxide, chromium trioxide, dialkylzincs, dichlorine oxide, ethylene oxide, hypochlorous acid, isopropyl chlorocarbonate, lithium tetrahydroaluminate, nitrogen dioxide, pentafluoroguani-dine, phosphorus pentasulfide, tangerine oil, triethylaluminum, triisobutylaluminum. 

The pink colour of crystal violet is known to be due to resonance between the electron system of the phenyl groups and the free electron pairs of the three dimethylamino-nitrogen atoms. By coordination of one proton the electron pair of one dimethylamino group is removed from the resonance system so that the spectrum of malachite green is produced. By coordination of two further protons the spectrum is changed to that of the triphenyl carbonium ion. The reactions are reversible and known to occur not only in water but also in acetic anhy-dride i , acetic acid-dioxane mixtures o in thionyl chloride, chlorocarbons, phosphorus oxychloridei2i,i22 and acetyl chlorideii . 

An example of the use of a mixed anhydride derived from ethyl chlorocarbonate to prepare a rather complex amide is the preparation of 2-phenyl-3-(2 -furyl)propionamide [10]. By the use of such anhydrides it is possible to prepare not only unsubstituted amides, but also various substituted amides. 

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