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4164452 
Journal Article 
Synthesis of Z-1,1,1,4,4,4-hexafluoro-2-butene from hexachlorobutadiene 
Zhang, C; Jia, X; Quan, H 
2016 
Yes 
Journal of Fluorine Chemistry
ISSN: 0022-1139
EISSN: 1873-3328 
191 
77-83 
WOS:000388058300010 
A novel synthetic route of Z-1,1,1,4,4,4-hexafluoro-2-butene (Z-HFO-1336mzz)was developed. It contains three-step reactions as follows: (1) The vapor-phase catalytic fluorination from hexachlorobutadiene to (E/Z)-2,3-dichlorohexafluoro-2-butenepromoted by Cr-based catalyst; (2) The liquid -phase dechlorination reaction from (E/Z)-2,3-dichlorohexafluoro-2-butene to 1,1,1,4,4,4-hexafluoro-2-butyne with Zn in DMF; (3) The gas -phase hydrogenation reaction from 1,1,1,4,4,4-hexafluoro-2-butyne to Z-HFO-1336mzz promoted by Pd + Bi/PAF (porous aluminium fluoride) catalyst. It provided a potential method for industrial production of Z-HFO-1336mzz. (C) 2016 Elsevier B.V. All rights reserved. 
Z-1,1,1,4,4,4-hexafluoro-2-butene; Hexachlorobutadiene; Chlorofluorination; Dechlorination; Hydrogenation