Preparation of Telomer Iodides

Preparation of Telomer Iodides.—C2F5I + CaF4 + (MeaCH-Oa-COla at 55 °C CF8-(CF2)J (x = 3, 5, 7, ctc.) RPI-C2F4 and RFI-C2H4 telomeiization in 

Wesley, Health Effects of Fluorocarbons , Chemical Rubber Co., Cleveland. Ohio, 1974 tchem. Abs., 1974, 81,146 659r). 

Shinkai,T. Kato, M. Asaoka, andT. Nakatsu, Japan. Kokai 74 18 806 (Chem. Abs., 1974, 80, 132 775t). 

Conversion of Iodides into Products of Commercial Interest etc.—Free-radical interaction of Rpl with OH-tenninated polybutadiene to yield oil- and water-repel-lants CF8 (CF2)s CH2 CH2l+HS CH2 CH2-N+HMeaa-+NaOH- .CF8 -(CFa)5 CHa CHa-S-CH2-CH2-NMe2, which on treatment with CHaCl-COaH- 

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