755-25-9Relevant articles and documents
A long the chain contains the fluorine process for the preparation of an olefin
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Paragraph 0038; 0039, (2017/03/18)
The invention relates to a preparation method of long-chain fluorine-containing alkene. The preparation method comprises the following steps: (1) addition reaction: continuously introducing fluorine-containing monomers into a reactor with a perfluoroalkyl group iodine solution and a radical initiator contained, regulating the pressure difference of front and rear fluorine-containing monomers inside the reactor to control the flow rate of the fluorine-containing monomers, carrying out the addition reaction through a bubbling method, preparing an addition product, and after the reaction is finished, carrying out reduced pressure distillation to obtain the addition product with certain purity; and (2) elimination reaction: removing HI of the addition product under an alkaline condition to obtain a long-chain alkene product. The preparation method disclosed by the invention can be used for preparing the long-chain fluorine-containing alkene through two-step reaction, namely addition and removal, and by adopting perfluoroalkyl group iodine and the fluorine-containing monomers as raw materials, the method is high in selectivity, simple, environment-friendly and easy to implement.
Transformations of F-Alkyl Iodides and Bromides Induced by Nickel(0) Carbonyl
Krespan, Carl G.,Dixon, David A.
, p. 36 - 43 (2007/10/03)
Adducts of primary F-alkyl iodides with nickel carbonyl are formed readily in donor solvents and pyrolyze at 100-150 °C to give olefinic coupling products in high yield. The mechanism proposed to account for the observed chemistry involves preferential α-elimination of fluorine with formation of a carbenoid species complex coordinated to nickel. Differences in reaction paths among several types of substrate halides are rationalized on the basis of polarization of the Ni-C bond in the adducts. Support for these proposals is provided by state-of-the-art calculations.
REACTIVITE DES PERFLUOROHALOGENOALCANES EN PRESENCE DE COUPLES METALLIQUES. REACTIVITE DE PERFLUOROIODOALCANES SUR DES DERIVES HALOGENES DANS DES SOLVANTS APROTIQUES DISSOCIANTS (DMSO, DMF).
Blancou, H.,Commeyras, A.
, p. 255 - 266 (2007/10/02)
Perfluoroalkyl iodides (RFI) reacts with organic halide in dissociants solvents (DMF, DMSO) in the presence of zinc-copper couple through an organometallic route; in this way C6F13Cl, C6F13CH2CH2I, (C6F13)2Zn have been prepared.