Ethyl cyanate

This reaction was also applied to reduce the nitrile groups in the maeromolecules of cellulose ethyl cyanates and poly(vinyl alcohol)51. In this case it has been found that along with aldehyde groups a considerable amount of carboxylic groups is also formed. 

It has been shown52 that under similar conditions reduction of the nitrile groups in cellulose ethyl cyanate and of those in the copolymer of vinylidene cyanide with vinyl acetate, proceed simultaneously in two directions with the formation of aldehyde and amine groups. g+ g ... 

The first synthesis of ethyl cyanate48 from 5-ethoxythiatriazole49 was briefly mentioned in the previous review of thiatriazoles.1 The thiatriazole decomposes smoothly in ethereal solution at 20° with formation of nitrogen, sulfur, and ethyl cyanate. Although several other methods are now available for the preparation of both alkyl and aryl cyanates the thiatriazole method prevails as the most generally applicable for the thermally and chemically sensitive alkyl cyanates, since the only by-products are inert—sulfur and nitrogen. Thus a number of 5-alkoxy,50-54 5-aryloxy,55-57 and 5-aralkoxythiatriazoles12,53 have been prepared. 

Alkylation with triethyloxonium tetrafluoroborate of a 1,2,3,4-thiatriazole substituted in the 5-position with an aryl or an alkylthio group gives a thiatriazolium salt (81 equation 52) (76AHC(20)145). With an alkyl- or aryl-amino group in the 5-position, however, a 4,5-disubstituted thiatriazoline is formed (see Section 4.28.2.5.2). Under similar alkylation conditions 5-ethoxythiatriazoles decompose completely to nitrogen, sulfur and ethyl cyanate. This is the normal thermal decomposition reaction of 5-alkoxythiatriazoles (see Section 4.28.2.3.l(i)) <76AHC(20)145). 

N-Ethyl-p-chloroformanilide, 1207 Ethyl chloroformate (Cathyl cUoride Ethyl chlorocarbonate), 86,239,364-367,370 Ethyl o-chlorophenylacetate, 1160 Ethyl oi-chloropropionate, 1160 Ethyl 2 hloropurme-6-carboxylate, 285 Ethyl cinnamate, 1066,1243 dibromide, 1078 Ethyl crotonate, 137, 787-788 Ethyl cyanate, 177... 

Ethoxybenzene 2-Ethoxyethanol 2-Ethoxyethyl acetate Ethyl acetate Ethyl acrylate Ethylamine gauche) Ethylamine trans) Ethylamine average) Ethylbenzene Ethyl benzoate Ethyl butanoate Ethyl ra 5-cinnamate Ethyl cyanate Ethyl cyanoacetate Ethylene carbonate Ethylene glycol average) Ethyleneimine Ethylene-sulfur dioxide complex... 

C3H5NO Ethyl cyanate 4.72 0.09 C3H8S Ethyl methyl sulfide (trans) 1.56 0.03... 

By passing the vapour of cyanic acid into alcohol, Liebig and Wohler (1830) obtained what they called cyanic ether (ethyl cyanate), but fifteen years later they found that the crystalline product contains neither cyanic acid nor cyanuric acid, and named it allophanic ether, because it is different from what was expected (oAAo , other av p6sy manifest). The constitution of allophanic... 

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