Method for producing 1-chloro-3,3,3-trifluoro-1-propene and 1,3,3,3-tetrafluoropropene

摘要

A method for producing a desired isomer of 1-chloro-3,3,3-trifluoro-1-propene or a desired isomer of 1,3,3,3-tetrafluoropropene at a high conversion ratio with no use of a solid catalyst is provided. Since no solid catalyst is used, a desired isomer of 1-chloro-3,3,3-trifluoro-1-propene and a desired isomer of 1,3,3,3-tetrafluoropropene can be stably obtained with no undesired possibility that the solid catalyst is deteriorated due to coking or the like caused as a result of long-time use thereof.

主权项

1. A method for producing a compound of a general formula (2), the method comprising isomerizing at least a part of a compound of a general formula (1) in a material composition into the compound of the general formula (2) by heating the material composition containing at least the compound of the general formula (1) in the presence of a radical generating agent,
wherein, in the general formulas (1) and (2), each of X and Y is a fluorine atom (F) or a hydrogen atom (H), and X and Y are not the same as each other; or each of X and Y is a chlorine atom (Cl) or a hydrogen atom (H), and X and Y are not the same as each other; and when in the general formulas (1) and (2), X is a hydrogen atom (H) and Y is a fluorine atom (F), the material composition is heated at a temperature higher than or equal to 150° C. and lower than or equal to 700° C. in isomerizing; or when in the general formulas (1) and (2), X is a fluorine atom (F) and Y is a hydrogen atom (H), the material composition is heated at a temperature higher than or equal to 150° C. and lower than or equal to 700° C. in isomerizing; or when in the general formulas (1) and (2), X is a hydrogen atom (H) and Y is a chlorine atom (Cl), the material composition is heated at a temperature higher than or equal to 150° C. and lower than or equal to 800° C. in isomerizing; or when in the general formulas (1) and (2), X is a chlorine atom (Cl) and Y is a hydrogen atom (H), the material composition is heated at a temperature higher than or equal to 150° C. and lower than or equal to 800° C. in isomerizing