Process for preparing one or more iodinated organic substances having a molecular mass of less than 2000 (substances (S)) using (A) at least one free-radical-generating substance chosen from peroxides, diazo compounds, dialkyldiphenylalkanes, substances derived from tetraphenylethane, boranes and iniferter substances comprising at least one thiuram disulphide group, (B) an ethylenically unsaturated substance capable of adding a free radical to its ethylenic double bond, (C) molecular iodine, which comprises the steps according to which at least a fraction of (A), at least a fraction of (B) and at least a fraction of (C) are introduced into a reactor, and then the contents of the reactor are caused to react, while introducing therein the possible remainder of (A), the possible remainder of (B) and the possible remainder of (C), until a moment is reached when the content of the reactor is a mixture comprising one or more substances (S). Iodinated organic substances for whose preparation the abovementioned process is particularly well suited.
使用(A)至少一种自由基产
生物质(选择过氧化物、重氮化合物、二烷基二苯基烷、四苯基
乙烷衍
生物、
硼烷和包含至少一个
硫脲二
硫化物基团的不反应物质),(B)一种能够向其
乙烯双键加入自由基的
乙烯基不饱和物质,(C)分子
碘的制备一种或多种分子质量小于2000的
碘化有机物(物质(S))的过程,包括以下步骤:将(A)的至少一部分,(B)的至少一部分和(C)的至少一部分引入反应器中,然后引入可能剩余的(A)、可能剩余的(B)和可能剩余的(C),使反应器的内容发生反应,直到反应器的内容为包含一种或多种物质(S)的混合物的时刻。特别适合使用上述过程制备的
碘化有机物质。