Stereospecific synthesis of tetrasubstituted acrylic esters

Details Stereospecific synthesis of tetrasubstituted acrylic esters Stereospecific synthesis of tetrasubstituted acrylic esters

1991-08-26

1992-11-10

Killos, Paul J.

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

Organic compounds

Carboxylic acid esters

560 8, C07C 6976

Patent

active

051625660

ABSTRACT:
Substantially stereospacific (E)-tetrasubstituted acrylic esters, such as ##STR1## where R is hydrogen alkyl, R.sub.1 is alkyl, aryl or aralkyl, R.sub.2 and R.sub.4 are alkyl, are formed from racemic mixtures of corresponding unsaturated esters and cuprates of the formula (R.sub.3).sub.2 CuX, wherein R.sub.3 is alkyl, aryl or aralkyl, and X is lithium or magnesium halide.

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