Process of producing 2-iminothiazoline derivatives and process o

Details Process of producing 2-iminothiazoline derivatives and process o Process of producing 2-iminothiazoline derivatives and process o

1993-12-02

1995-10-31

Gerstl, Robert

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

548193, 548195, C07D27742, C07D27746

Patent

active

054630690

ABSTRACT:
There is disclosed a process of producing a 2-iminothiazoline derivative of the general formula [II], characterized in that a thiourea derivative of the general formula [I] is treated with an acid. Also disclosed are a process of producing an N-substituted N-arylcyanamide derivative of the general formula [VI], characterized in that an N-arylcyanamide derivative of the general formula [IV] is reacted with an allyl halide derivative of the general formula [V] in an aprotic polar solvent in the presence of an iodide and an alkali metal carbonate; and a process of producing an N-substituted N-arylthiourea derivative of the general formula [VII], characterized in that an N-substituted N-arylcyanamide derivative of the general formula [VI] obtained as described above is further reacted with a chemical species which generates sulfide ion or hydrogensulfide ion.

REFERENCES:
patent: 3546344 (1970-12-01), Martin et al.
patent: 4665083 (1987-05-01), Lempert et al.
patent: 5244863 (1993-09-01), Kawamura et al.
J. Chem. Soc. Perkin Trans. I, 639-643, (1987).
J. Org. Chem. 29, 153-157 (1964).
Sugiyama, Chem. Pharm. Bull 37(8)2122 (1989).

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