Oxazolinone derivatives, process for preparing the same, and use

Details Oxazolinone derivatives, process for preparing the same, and use Oxazolinone derivatives, process for preparing the same, and use

1995-08-16

1997-11-25

Ivy, C. Warren

Plant protecting and regulating compositions

Plant growth regulating compositions

Organic active compound containing

504270, 5462714, 548228, C07D26322

Patent

active

056912781

ABSTRACT:
An oxazolinone derivative compound, represented by the general formula I, shows superior herbicidal activity against, especially, dicotyledonous vegetables. It is effective upon applying both before and after the sprouting of vegetables. It is prepared by condensating an .alpha.-amino acid represented by the general formula II with an acid chloride represented by the general formula III, to give an acyl .alpha.-amino acid represented by the following formula IV: reacting the acyl .alpha.-amino acid with acetic anhydride; and dehydrating the resulting adduct: ##STR1## wherein, R represents a lower alkyl group or a phenyl group containing halogen, lower alkyl or trifluoromethyl group; X represents halogen atom, carbomethoxy group, nitro group, or halogen or trifluoromethyl-substituted phenoxy group, being the same or different from one another; A represents nitrogen or carbon atom; and n is an integer of 1 to 3.

REFERENCES:
Jones, T.R. et al., "Quinazoline Antifolates Inhibiting Thymidylate Synthase: Variation of the Amino Acid", J.Med.Chem., 29, pp. 1114-1118, 1986.
Toniolo, C. et al, "A Long, Regular Polypeptide 3(10)-Helix", Macromolecules, 19, pp. 472-479, 1986.

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