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

1995-05-04

1997-07-15

Gerstl, Robert

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

Organic compounds

Amino nitrogen containing

C07C33516

Patent

active

056485336

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:
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patent: 4665083 (1987-05-01), Lempert et al.
patent: 5244863 (1993-09-01), Kawamura et al.
Johnson et al., J. Org. Chem., Jan. 1964, vol. 29, pp. 153-157.
Bramley et al., J. Chem. Soc. Perkin Trans. I, 1987, pp. 639-643.
Sugiyama et al., Chem. Pharm. Bull., 37(8), 1989, pp. 2122-2131.

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