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2005
Furan derivatives
R 0060
Electrochemical Fluorination of Several Esters Derived from Oxolane-2-yl-carAcid, Oxolane-2-yl-methanol and Oxane-2-yl-methanol. — The direct pre35- 117 boxylic
paration of perfluorooxolane derivative (II) from carboxylic acid derivatives (I) and
oxolaneylmethanol derivatives (V) is investigated to shorten the pathway of a multi-step synthesis of perfluoro(oxolaneylcarboxylic acid), a precursor of (II). Besides the
formation of desired product (II), (IV) and unidentified products, perfluorooxolane (III)
is obtained as the principal product. In the case of educt (V) considerable amounts of
spiro compound (VI) are obtained. When acetate (VII) or trifluoroacetate esters of oxaneylmethanol are fluorinated, an another set of products is formed including the target
compound (IX), perfluorospiro ether (VIII) as well as other cleaved products. —
(ABE*, T.; TAMURA, M.; SEKIYA, A.; J. Fluorine Chem. 126 (2005) 3, 325-332;
Natl. Inst. Adv. Ind. Sci. Technol., Ibaraki, Tsukuba 305, Japan; Eng.) —
H. Hoennerscheid
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