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

1978-12-15

1980-04-08

Shaver, Paul F.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

2603268, C07D20704

Patent

active

041972589

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
patent: 3520932 (1970-07-01), Martin

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