1509-56-4Relevant academic research and scientific papers
(2,2-DICHLOROETHYLIDENE)- AND (2,2-DIBROMO-2-CHLOROETHYLIDENE)ETHOXYCARBONYLAMINES FROM N,N-DICHLOROURETHANE AND 1,2-DICHLORO- AND TRIBROMOETHYLENES
Evstaf'eva, I. T.,Mirskova, A. N.,Levkovskaya, G. G.,Bannikova, O. B.
, p. 859 - 862 (2007/10/02)
The reaction of N,N-dichlorourethane with 1,2-dichloroethylene and tribromoethylene under conditions of free-radical initiation leads to the formation of (2,2-dichloroethylidene)- and (2,2-dibromo-2-chloroethylidene)ethoxycarbonylamines and the products from their further transformation, i.e., the respective diamides.
SYNTHESIS AND SOME PROPERTIES OF 1,1-DI(ALKOXYCARBONYLAMINO)-2,2-DIHALOGENO- AND 1,1-DI(ALKOXYCARBONYLAMINO)-2,2,2-TRIHALOGENOETHANES
Bal'on, Ya. G.,Smirnov, V. A.
, p. 2249 - 2254 (2007/10/02)
1,1-Di(alkoxycarbonylamino)-2,2,2-trihalogenoethanes were obtained by heating trihalogenoacetaldehydes or their hydrates with urethanes in a ratio of 1:2 in the presence of catalytic amounts of concentrated sulfuric acid.The products were reduced selectively with aluminum amalgam in 90percent alcohol to 1,1-di(alkoxycarbonylamino)-2,2-dihalogenoethanes.Compounds of both types react smoothly with benzene and its homologs in the presence of concentrated sulfuric acid and give 1-alkoxycarbonylamino-1-aryl-2,2-dihalogeno- and 1-alkoxycarbonylamino-1-aryl-2,2,2-trihalogenoethanes respectively.In an alkaline medium the latter are cleaved to aryloxyacetic acid, and with phosphorus pentachloride they form 1-aryl-2,2-dihalogeno- and 1-aryl-2,2,2-trihalogenoethyl isocyanates.
