Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent
1974-10-01
1976-04-13
Gotts, Lewis
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C-metal
C07C12176
Patent
active
039503828
ABSTRACT:
The reaction of one mole of a Mannich base corresponding to the formula ##SPC1##
And one mole of a Mannich base corresponding to the formula ##SPC2##
Wherein R.sub.1, R.sub.2, R.sub.4 and R.sub.5 are independently selected from alkyl groups having 1 to 6 carbon atoms and R is alkyl, preferably lower alkyl, with 1 mole of a carboxylic acid ester corresponding to the formula R.sub.3 CH.sub.2 COOR.sub.4 wherein R.sub.3 is --H, --CN or --COOR.sub.4 and R.sub.4 is an alkyl, thioether, oxyether or aralkyl group having up to 20 carbons in the presence of a catalytically effective amount of an alkaline catalyst is useful for preparing compounds corresponding to the formula ##SPC3##
The compounds represented by the above formula are useful as stabilizers for synthetic resins, particularly polyolefins. Compounds of the above formula, when R.sub.3 is --CN are novel and may also be prepared by reacting 1 mole of ##SPC4##
And 1 mole of ##SPC5##
Wherein X is halogen with 1 mole of NCCH.sub.2 COOR.sub.4 in the presence of an alkali metal and an anhydrous inert organic solvent.
REFERENCES:
patent: 3054822 (1962-09-01), Schorr et al.
patent: 3721704 (1973-03-01), Dexter
Diehl Karl-Heinz
Eggensperger Heinz
Franzen Volker
Kloss Wilfred
Ciba-Geigy Corporation
Gotts Lewis
Torrence Dolph H.
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