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Journal article

Synthesis of chlorinated pyrylium salts

Chlorinated pentadienals and pentadienones (I) gave complex pyrylium salts (II) when warmed with Lewis acids 10-15 hrs. at 40-50 Deg. The compds. thus prepared are given in the table. Decompn; R, R', Anion, point, %Yield; Cl, H, SnCl6-, 1701-1.5 Deg, 87; 27.6; H, H, FeCl4, 155-60 Deg, 13; Cl, Ph, SnCl62-, 177-83 Deg, 40.9; SnCL6-, 176-80 Deg, 17.2; Ph, H, SnCl6-, 118-20 Deg, 60; Ph, Ph, FeCl4-, 219-22 Deg, 52; SbCl6-, 128-33 Deg, 28.9; ClO4, 240 Deg, 20; [on SciFinder (R)]

    Keywords: Stannates(IV) (of chlorinated pyrylium ions)

    Note:

    CAN 65:12147 37 Heterocyclic Compounds (One Hetero Atom) Univ. Wuerzburg,Germany. Journal written in English. 14946-92-0 (Tetrachloroferrate(III) (of 3,4,5-trichloro-2,6-diphenylpyrylium and 3,4,5-trichloropyrylium ions); 17949-89-2 (Antimonate(V), hexachloro) (of 3,4,5-trichloro-2,6-diphenylpyrylium ion); 6239-50-5 (2,2'-Biselenophene, 3,3'-dinitro-); 6239-51-6 (2,2'-Biselenophene, 5,5'-dinitro-); 6239-52-7 (2,2'-Biselenophene, 3,3',5,5'-tetranitro-); 10493-63-7 (Pyrylium, 3,4,5-trichloro-2,6-diphenyl-, perchlorate) (prepn. of)

    Reference

    • LSCO-ARTICLE-1966-003

    Record created on 2006-03-03, modified on 2016-08-08

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