2852-07-5Relevant academic research and scientific papers
Dehydration of halogenated, unsaturated alcohols to form halogenated, conjugated dienes
-
, (2008/06/13)
Halogenated, unsaturated alcohols are dehydrated by contacting the alcohol and a carrier gas with a silica alumina catalyst to form dienes of the formula: STR1 wherein each X is independently hydrogen, fluorine chlorine, or bromine with the proviso that no more than one of them is hydrogen, and each R is independently hydrogen, alkyl, aralkyl, alkaryl, or aryl.
CHEMISTRY OF DIENES AND THEIR DERIVATIVES. XVII. LOW-TEMPERATURE CHLORINATION OF 2-CHLORO- AND 1,2-DICHLORO-1,3-BUTADIENES IN THE PRESENCE OF AN INHIBITOR OF RADICAL REACTIONS
Mkryan, G. M.,Airapetyan, R. Kh.,Mkryan, G. G.,Kaplanyan, E. E.
, p. 1242 - 1247 (2007/10/02)
During the chlorination of chloroprene (80-85percent conversion) in carbon tetrachloride at -5 to 0 deg C in the presence of tert-butylpyrocatechol 1,2-dichloro-1,3-butadiene, 3,3,4-trichloro-1-butene, 2,3,4-trichloro-1-butene, and 1,2,4-trichloro-2-butene are formed in percentage ratios of 20.4:6.7:3.4:69.5.During chlorination to total conversion of chloroprene under these conditions a series of other compounds are also formed as a result of the further chlorination of 1,2-dichloro-1,3-butadiene and 3,3,4-trichloro-1-butene.During the chlorination of 1,2-dichloro-1,3-butadiene to a high degree of conversion 1,2,4-trichloro-1,3-butadiene, 1,2,3,4-tetrachloro-1-butene, and 1,1,2,4-tetrachloro-2-butene are formed in ratios of 11.4:49:39.6.
