- Features of the reaction of polyfluoroalkyl chlorolsulfites with allyl alcohol
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Unlike the saturated aliphatic and aromatic alcohols, allyl alcohol under the same conditions reacts with polyfluoroalkyl chlorosulfites to form not ethers, but polyfluorinated alcohols. The exception is polyfluoroalkyl chlorosulfites with the chain length of more than five carbon atoms. Allyl ethers of polyfluorinated alcohols of general formula CH2=CHCH 2OCH2(CF2CF2)nH (n = 1-3) were obtained, when the reaction proceeded in the presence of potassium carbonate, owing to its participation in a specific orientation of the reaction centers in the resulting intermediate structure, which is easily transformed into allyl ethers of polyfluorinated alcohols. Pleiades Publishing, Ltd., 2011.
- Rakhimov,Miroshnichenko,Thao, Do Duong Phuong
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- Oligosiloxane mit funktionellen Gruppen. XI. Zur Synthese von Siloxanyl- und Na-Sulfo-Propoxy-α,α,ω-trihydroperfluoralkanen
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Several α,α,ω-trihydroperfluoroalkylallyl ethers (2a-c) have been prepared in excellent yields by phase transfer catalysis of α,α',ω-trihydroperfluoroalcoholes and allyl chloride using 3-siloxanylpropylammonium halides as a catalyst.In the presence of a Pt-olefin complex the hydrosilylation of 2a-c with H-siloxanes affords 3-siloxanylpropoxy-α,α',ω-trihydrofluoroalkanes in high yields.The reaction of 2a-c with aqueous NaHSO3/Na2SO3 solution gives anionic fluorosurfactants (4c) beginning with n = 3.
- Sonnek, Georg,Rabe, Christiane,Schmaucks, Gerd,Kaden, Reinfried,Lehms, Ingeburg
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- Thermal desulfurization of (Alkoxymethyl)thiiranes
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Reaction of (alkoxymethyl)oxiranes with thiourea in methanol has afforded the corresponding thiiranes, and catalyst-free thermal desulfurization of the products has been studied. The major products of desulfurization are alcohols and alkenes, both in the cases of (polyfluoroalkyloxymethyl)thiiranes and their non-fluorinated analogs. Longer alkyl chain in thiiranes favors formation of alcohols over alkenes formation in the course of desulfurization.
- Nalet'Ko,Pervova,Gorbunova,Zapevalov, A. Ya,Toporova,Saloutin
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p. 2120 - 2124
(2015/02/02)
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