Aliphatic alkanals with improved storage stability and method of

Details Aliphatic alkanals with improved storage stability and method of Aliphatic alkanals with improved storage stability and method of

1998-08-14

2000-11-21

Padmanabhan, Sreeni

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

Organic compounds

Oxygen containing

568421, C07C 4700

Patent

active

061505633

ABSTRACT:
Aliphatic alkanals with a water content of greater than 300 ppm which are stable in storage, and a method of improving the storage stability of these aliphatic alkanals, especially of substituted, sulfur-containing alkanals. The formation of oligomers, polymers and condensation products from elimination reactions and oxidation and the subsequent reactions of the products formed results in undesired impurities that are largely prevented by the addition of an organic acid that forms metal complexes and, optionally, alkanolamines or trialkanolamines.

REFERENCES:
patent: 4289912 (1981-09-01), Harris
patent: 4546205 (1985-10-01), Sandler
Derwent Publications Ltd., London, GB; Class D23 AN 92-431227, XP002087426 (Jan. 15, 1992).

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