Process for the N-alkylation of ureas

Details Process for the N-alkylation of ureas Process for the N-alkylation of ureas

1991-12-16

1992-12-08

Ramsuer, Robert W.

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

Organic compounds

Four or more ring nitrogens in the bicyclo ring system

546226, 548538, 564 56, 564 57, 564 61, C07C27318, C07D29515

Patent

active

051699540

ABSTRACT:
Process for the N-alkylation of ureas by reacting a urea with an alkylating agent in the presence of a solid base and a phase transfer catalyst in a diluent.

REFERENCES:
patent: 3161676 (1964-12-01), Adams
E. V. Dehmlow et al., Phase Transfer Catalysis, (1980) pp. 93, 94.
Jacobsen, J.A.C.S., 58, 1984-1985 (1936).
Ongley, "Trans. Proc. Roy. Soc. New Zealand", 77, 10-12 (1948).
Korte, "Methodicum Chimicum", 6, 716, 732 Georg Thieme Verlag, Stuttgart (1974).
Petersen et al., Methoden der Organische Chemie (Houben-Weyl), 4th Ed., vol. 335 et seq., 594, Georg Thieme Verlag, Stuttgart (1983).
Chem. Abst., 100 Column 51301(g) (1984).
Chem. Abst., 106, Column 5240(v) (1987).

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