Manufacture of .alpha.-formylethanephosphonic acid esters

Details Manufacture of .alpha.-formylethanephosphonic acid esters Manufacture of .alpha.-formylethanephosphonic acid esters

1978-03-20

1980-04-15

Sutto, Anton H.

Chemistry of carbon compounds

Dipeptides, e.g., aspartame, anserine, carnosine, etc.

C07F 940

Patent

active

041983548

ABSTRACT:
.alpha.-Formylethane-phosphonic acid esters are manufactured by reacting vinylphosphonic acid esters with carbon monoxide and hydrogen in the presence of conventional rhodium-containing hydroformylation catalysts. The reaction is carried out at from 50.degree. to 180.degree. C. and at pressures from 20 to 1,500 bars. The products are intermediates for the synthesis of insecticidally active phosphoric acid ester derivatives.

REFERENCES:
Moskva et al., "J. Gen. Chem. USSR" (English Translation) vol. 41, pp. 1687-1691, (1971).
Reichel et al., "Ann. Chem.," vol. 751 (1971), p. 69.
Moskva et al., "J. G. Chem. USSR" (English Translation) vol. 41, (1971) pp. 1489-1492.
Wagner et al., "Synthetic Organic Chemistry ", (1953), p. 282.

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