Process for producing substituted aminoquinazolinone...

Details Process for producing substituted aminoquinazolinone... Process for producing substituted aminoquinazolinone...

2004-05-11

2011-10-11

Wilson, James O (Department: 1624)

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

Organic compounds

Nitrogen attached directly or indirectly to the purine ring...

Reexamination Certificate

active

08034931

ABSTRACT:
A process for producing a substituted aminoquinazolinone derivative of formula (I), characterized by reducing a substituted iminoquinazolinone derivative of formula (II) with hydrogen in the presence of a catalyst and either of a halogen compound and a sulfur compound; a substituted iminoquinazolinone derivative of formula (II′); and a pest control agent containing the derivative of formula (II′) or a salt thereof as an active ingredient and a method of using the same (in the formulae, R represents hydrogen, formyl, (C1-C6) alkyl, (C1-C6)alkoxy(C1-C3)alkyl, (C1-C6) alkylsulfonyl, optionally substituted phenylcarbonyl, etc.; R1represents an optionally substituted, 5- or 6-membered heterocycle having one to three heteroatoms selected among oxygen, sulfur, and nitrogen; R2represents hydrogen or (C1-C3) alkyl; X and X′ may be the same or different and each represents (C1-C6) haloalkyl, (C1-C6) haloalkoxy, etc.; n is an integer of 0; and n′ is an integer of 1-4).

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Kornet, M.J. et al., Synthesis of 3-Amino-3, 4-dihydro-2(1 H)-quinazolinones as Potential Anticonvulsants, J. Heterocycl. Chem., 1984, 21, pp. 1709-1711.

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