Method for producing fluorine-containing compound having iodine atom content reduced

A method for producing a fluorine-containing compound having an iodine atom content reduced than the following iodine-containing compound, which comprises subjecting an iodine-containing compound having a group represented by the following formula (1i) or a group represented by the following formula (2i), to deiodinating treatment in the presence of an organic peroxide and a hydrogen-containing compound having a group represented by the following formula (3):

• in the formula (1i), Rf is a fluorine atom or a perfluoroalkyl group;
• in the formula (2i), the ring containing Rf is a 5- or 6-membered ring, Rf is a perfluoroalkylene group having a linear or branched structure, which may have an etheric oxygen atom, and Ra and Rb are each independently a fluorine atom, a C1-5 perfluoroalkyl group or a C1-5 perfluoroalkoxy group, and
• in the formula (3), R1, R2 and R3 are each independently a hydrogen atom or an alkyl group,
• wherein the fluorine-containing compound has a group represented by the following formula (1h) or a group represented by the following formula (2h):
• Rf in the formula (1h) and Rf′, Ra and Rb in the formula (2h) are as defined above.