Process for preparing polyfunctional compounds

Details Process for preparing polyfunctional compounds Process for preparing polyfunctional compounds

1979-05-03

1980-10-07

Demers, Arthur P.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acid esters

568 28, 260561R, 260561A, 260561S, 260561K, C07C 6934, C07C14714, C07C10200

Patent

active

042270138

ABSTRACT:
A process for preparing polyfunctional methylene-bridged compounds is disclosed. A difunctional methylene-bridged compound having acidic protons and having the formula X--CH.sub.2 --X is reacted with an alkali metal in the presence of a disubstituted formamide to provide a methylene-bridged polyfunctional compound having the formula ##STR1## wherein X is an electron-withdrawing group such as --CONH.sub.2, --COOR or --SO.sub.2 R where R is alkyl. The polyfunctional compounds prepared by the process of the present invention are useful in the production of metal complexing or sequestering agents, acidulents, cross-linking agents for polymeric reactions and in applications where a polyfunctional compound is desirably employed.

REFERENCES:
patent: 3560531 (1971-02-01), Normant
Tutin, J. Chem. Soc., 1907, pp. 1141-1146.
Welch, J. Chem. Soc., 1930, pp. 257-261.
Rothstein et al., J. Chem. Soc., 1953, pp. 4012-4018.
Evans, J. Chem. Soc., 1956, pp. 4691-4692.
Rohrs, C.A. 35 (1941), col. 7940 & 7941.
Matsuura, C.A. 46, col. 906 and 907.
Braeuniger et al., C.A. 65 (1966), col. 7051.
Haas et al., J. Polym. Sci., Polym Chem. Ed. 1978, 16(3), pp. 699-700.

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