Preparation of unsaturated monoesters

Details Preparation of unsaturated monoesters Preparation of unsaturated monoesters

1991-12-30

1993-03-23

Prescott, Arthur C.

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

Organic compounds

Carboxylic acid esters

554 31, 554 32, 554125, C07C 6702

Patent

active

051965712

ABSTRACT:
Unsaturated monoesters of the formula (I) ##STR1## are prepared from diesters of the formula (II) ##STR2## where the radicals R.sup.1 to R.sup.5 in the formulae (I) and (II) are identical to each other and each is hydrogen, straight-chain or branched alkyl or alkenyl of from 1 to 10 carbon atoms, cycloalkyl or cycloalkylene of from 5 to 8 carbon atoms, aryl, alkylaryl or aralkyl, by reaction in the presence of a zeolite and/or phosphate as a catalyst with the elimination of a carboxylic acid R.sup.6 COOH where R.sup.6 is hydrogen or alkyl of from 1 to 6 carbon atoms, n being an integer from 1 to 10.

REFERENCES:
patent: 2901506 (1959-08-01), Bullock et al.
patent: 2941011 (1960-06-01), Hagemeyer, Jr. et al.
patent: 3300455 (1967-01-01), Gervasi et al.
Grant, J. (editor), Hackh's Chemical Dictionary 4th edition, McGraw-Hill, N.Y., 1969, p. 684.
Merriam-Webster, Webster's Ninth New Collegiate Dictionary, Merriam-Webster Inc., Springfield, Mass., U.S.A., 1983, p. 884.
Morris, Wm., Editor, The American Heritage Dictionary of the English Language, Houghton Mifflin Co., Boston, 1976, p. 986.
J. Polym. Sci. Polym. Chem. 18 (1980) 1729-1758.

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