Bulletin of the Academy of Sciences of the USSR Division of Chemical Science p. 1447 - 1450 (1990)
Update date:2022-08-17
Topics:
Dzhemilev, U. M.
Khusnutdinov, R. I.
Shchadneva, N. A.
Tolstikov, G. A.
Methods have been developed for the synthesis of the dimethyl ester of 1-carboxysorbic acid, 2-methyl-3-acetyl-5-vinyl- and 2-methyl-3-ethylcarboxy-5-vinyldihydrofurans by isomerization, respectively, of 1,1-dimethylcarboxy-2-vinyl-, 1,1-diacetyl-2-vinyl-, and 1-acetyl-1-ethylcarboxy-2-vinylcyclopropanes under the effect of Rh- and Pd-containing catalysts promoted with AcOH or CF3COOH.
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