Thermal fragmentation of methylbenzylurea disastereomers or seco

Details Thermal fragmentation of methylbenzylurea disastereomers or seco Thermal fragmentation of methylbenzylurea disastereomers or seco

1987-08-28

1991-08-13

Raymond, Richard L.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

546146, 560 24, 560338, 560344, 560345, 564 56, 564302, 564303, 564304, 564414, C07D47104, C07C20988

Patent

active

050398016

ABSTRACT:
The invention provides an improved method for obtaining optically active amines, carbamates, and isocyanates by thermal fragmentation of optically active ureas through refluxing the ureas in C.sub.3 -C.sub.7 alcohol solution with or without catalytic amounts of alkali metal.

REFERENCES:
patent: 1792156 (1931-02-01), Fitzky
patent: 2046375 (1936-07-01), Goldstein et al.
patent: 2056255 (1936-10-01), Coffey et al.
patent: 2810754 (1957-10-01), Chang et al.
patent: 3168566 (1965-02-01), Loter et al.
patent: 3404103 (1968-10-01), Matsudaira et al.
patent: 3405159 (1968-10-01), Krieger et al.
patent: 3682925 (1972-08-01), Hollander et al.
patent: 3755413 (1973-08-01), Koppe et al.
patent: 3857889 (1974-12-01), Leigh
patent: 4463176 (1984-07-01), Dennis et al.
Fieser et al., "Reagents for Organic Synthesis", vol. 8*, p. 499 (1980).
Fieser et al., "Reagents for Organic Synthesis", vol. 11, pp. 553-554 (1984).

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