Process for producing cyclic ureas

Details Process for producing cyclic ureas Process for producing cyclic ureas

1987-05-22

1990-02-13

Ford, John M.

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

Organic compounds

Unsubstituted hydrocarbyl chain between the ring and the -c-...

544315, 548317, C07D23334, C07D23910, C07D24304

Patent

active

049008200

ABSTRACT:
A process for producing a cyclic diamine which comprises reacting a diamine of the formula

REFERENCES:
patent: 3073800 (1963-01-01), Shiu Yim Poon
patent: 4731453 (1988-03-01), Nagata et al.
Justus Liebigs Annalen der Chemie, vol. 726, 1969, pp. 89-99, Verlag Chemie GmbH, Weinheim, DE; H. Petersen: "Synthese und Eigenschaften Funfgliedriger cyclischer Harnstoffe", p. 93, cormulas 32-31; pp. 97, 31a, b.
Journal of Medicinal Chemistry, vol. 14, No. 2, Feb. 1971, pp. 138-144, et al: "Centrally Acting Cyclic Urea, Thiourea, and their N,N'dialkyl derivatives., Structure-Activity Correlations", Hussain et al.

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