Manufacture of 1-disubstituted aminoalk-2-yn-4-ols

Details Manufacture of 1-disubstituted aminoalk-2-yn-4-ols Manufacture of 1-disubstituted aminoalk-2-yn-4-ols

1977-08-15

1979-04-10

Shaver, Paul F.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260585C, C07C 8502

Patent

active

041488245

ABSTRACT:
The manufacture of N-disubstituted 1-aminoalk-2-yn-4-ols by reacting a secondary amine, e.g. a dialkylamine, formaldehyde and an acetylene-alcohol by a Mannich reaction, using a copper catalyst, takes place with better yield and at a higher rate if carried out in the presence of iodine or of a bromide or iodide.

REFERENCES:
patent: 3448153 (1969-06-01), Cavitt et al.
patent: 3520932 (1970-07-01), Martin et al.

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