ChemInform Abstract: Radicalic Telomerization of 3,3,3‐Trifluoro‐1‐propene with Tetrabromomethane. Individual Chain Transfer Constants.

Abstract

Telomerization of 3,3,3‐trifluoroprop‐1‐ene (I) and tetrabromomethane (II), initiated by benzoyl peroxide, yields the compounds (III) ‐ (V) as mixtures of diastereomers.

Radical telomerization of 3,3,3-trifluoropropene with diethyl hydrogen phosphonate: Characterization of the first telomeric adducts and assessment of the transfer constants

“…Although the telomerization of TFP with various chain transfer agents (halogenated compounds [32][33][34][35], alcohols [36], esters [37]) has been demonstrated, very few examples exist in the literature involving the use of diethyl hydrogen phosphonate (DEHP) [13]. Telomerization of various fluoroalkenes with dialkyl hydrogen phosphonate as the functional transfer agent [31] is well known and is summarized in Table 1 Haszeldine et al [13] studied the peroxide addition of DEHP to different fluoroalkenes, such as TFE, CTFE, VDF, hexafluoropropene (HFP), including TFP and found that the latter gave diethyl-3,3,3-trifluoropropyl-1-phosphonate only (monoadduct in 39% yield).…”

Original fluorinated surfactants potentially non-bioaccumulable

“…Though the telomerizations of TFP with various chlorinated or brominated chain transfer agents were achieved by Vasil'eva et al [41][42][43][44], Terent'ev et al [45], or Zamyslov et al [46,47], few works have been reported on the radical cotelomerization of TFP with perfluoroalkyliodides. [48][49][50] Recently, we revisited this reaction to produce TFP telomers with longer chain lengths that those achieved by Haszeldine [48,49] (ca.…”