| 摘要 |
FIELD: chemistry.SUBSTANCE: method involves: (a) reaction of 1,1,2,3,3,3-hexafluoropropylene (1216) with hydrogen in the presence of a hydrogenation catalyst to form 1,1,2,3,3,3-hexafluoropropane (236ea); (b) dehydrofluorination of 236ea to form 1,2,3,3,3-pentafluoropropylene (1225ye); (c) reaction of 1225ye with hydrogen in the presence of a hydrogenation catalyst to form 1,2,3,3,3-pentafluoropropane (245eb); and (d) dehydrofluorination of 245eb to form 1234yf, where steps (a) and (c) are carried out at the same time in the same reactor.EFFECT: use of the present method enables to avoid use of expensive reactants and formation of toxic by-products.21 cl, 3 ex, 3 tbl, 3 dwg |
