Organic compounds -- part of the class 532-570 series – Organic compounds – Nitrogen attached directly or indirectly to the purine ring...
Reexamination Certificate
2000-04-27
2002-03-12
Shah, Mukund J. (Department: 1616)
Organic compounds -- part of the class 532-570 series
Organic compounds
Nitrogen attached directly or indirectly to the purine ring...
C544S311000, C544S312000
Reexamination Certificate
active
06355799
ABSTRACT:
The present invention relates to substituted benzene compounds, process for their preparation, and herbicidal and defoliant compositions containing them.
BACKGROUND OF THE INVENTION
Use of uracils as herbicides has previously been reported. For example, U.S. Pat. Nos. 4,859,229 and 4,746,352 describe 3-phenyl uracil derivatives as herbicides. However the phenyl ring in the described compounds carry only four substituents. U.S. Pat. No. 4,927,451 describes herbicidal compounds carrying five substituents on the phenyl ring with a dihydrouracil ring. EP Patent 0705829 describes uracil herbicides caring pentasubstituted phenyl ring with a carbon linked substiutent at position 2 of the phenyl ring. U.S. Pat. Nos. 5,346,881, 5,441,925, 5,169,431, 5,476,834, 5,602,077, and WO Patents 97/08170, 08171, 12886 and 42188 describe uracil herbicides carrying a fused pentasubstituted phenyl ring where the 2 position of the phenyl ring is substituted either with a carbon, oxygen or nitrogen. U.S. Pat. No. 5,116,404 and JP Patent 05025144 describe uracil compounds with a 3-phenyl group which may be pentasubstituted but none of these Patents appears to make obvious the compounds of the present invention which carry a nitrogen linked substituent at position 2 of the phenyl ring alongwith substituents at positions 3, 4, and 6 and there appears to be no indication as to the criticality of the substitution pattern of the phenyl moiety in order to introduce the high herbicidal activity in combination with selectivity towards crops. Similarly use of pyrazole, tetrahydrophthalimide, triazolinone, tetrazolinone, and triazolidine derivatives as herbicides has been described before such as U.S. Pat. Nos. 5,281,571, 4,881,967, 5,084,085, WO Patent 85/01939, and Japanese Pat. No. 1-121290 respectively. Pyridazinones, pyridyls, bicyclic hydantoins, phthalimides, pyrimidinones, pyrazinones, and pyridinones have also been described as herbicides such as WO Patent 97107104, 95102580, 95123509, EP Patent 0786453, WO Patent 97/06150, 97/11060, and 97/28127. However, despite the broad coverage of these Patents, the general structure of the present invention has not been described.
SUMMARY OF THE INVENTION
This invention delineates a method for the control of undesired vegetation in a plantation crop by the application to the locus of the crop an effective amount of a compound described herein. The herbicidal and defoliant compounds of the present invention are described by the following general formula I or its salts:
wherein X is hydrogen, halogen, nitro, amino, NMR, N(R)
2
, amide, thioamide, cyano, alkylcarbonyl, alkoxycarbonyl, alkylsulfonamide, unsubstituted or substituted alkyl, haloalkyl, alkoxy, haloalkoxy, alkoxycarbonylalkoxy, benzyloxy, aryloxy, or heteroaiyloxy;
Y is hydrogen, halogen, or nitro;
W is hydrogen, OR, SR, NH, N(R)
2
, CH
2
R, CH(R)
2
, or C(R)
3
, halogen, nitro, or cyano, where multiple R groups represent any possible combination of substituents described by R; R is hydrogen, alkyl, alkenyl, alkynyl, cycloalkyl, aryl, heteroaryl, alkoxy, cycloalkyloxy, aryloxy, heteroaryloxy, alkylsulfonyl, benzyl, alkylcarbonyl, alkenylcarbonyl, alkynylcarbonyl, arylcaibonyl, heteroarylcarbonyl, alkoxycarbonyl, aryloxycarbonyl, or heteroaryloxycarbonyl, where any of these groups may be unsubstituted or substituted with any of the functional groups represented by one or more of the following: halogen, cyano, nitro, amino, carboxyl; alkyl, haloalkyl, alkylsilyl, alkylcarbonyl, haloalkylcarbonyl, alkoxy, alkoxycarbonyl, haloalkoxy, haloalkoxycarbonyl, alkylsulfonyl, haloalkylsulfonyl, aryl, heteroaryl, or cycloalkyl;
Q is a heterocycle, examples of which are as follows:
wherein R
1
is hydrogen, alkyl, haloalkyl, alkenyl, alkynyl, amino, alkoxyalkyl, acetyl, alkoxycarbonylamino, alkylcarbonylamino, or alkoxycarbonyl;
R
2
is alkyl or haloalkyl;
R
1
and R
2
could combine to form a five- or six-membered heterocyclic ring;
R
3
is hydrogen, halogen, nitro, amino, alkylamino, haloalkylamino, cyano, or amide;
R
8
and R
9
are independently oxygen, sulfur, or imino group;
Q6, Q7, and Q10 may optionally be unsaturated containing one or two double bonds in the 6-membered ring;
Z is amino, hydroxyl, thiol, formyl, carboxyl, cyano, alkylcarbonyl, arylcarbonyl, azido, or one of the following:
wherein R
4
is alkyl, alkenyl, alkynyl, amino, cycloalkyl, heterocycloalkyl, alkylsulfonyl, arylsulfonyl, benzyl, aryl, heteroaryl, alkylcarbonyl, alkenylcarbonyl, alkynylcarbonyl, cycloalkylcarbonyl, arylcarbonyl, heteroarylcarbonyl, alkoxycarbonyl, alkylithiocarbonyl, cycloalkyloxycarbonyl, aryloxycarbonyl, arylthio-carbonyl, aryl-thiocarbonyl, heteroaryloxycarbonyl, aminocarbonyl, alkylaminocarbonyl, arylaminocarbonyl, heteroarylaminocarbonyl, alkoxyabonylcarbonyl or arylcarbonylcarbonyl, where any of these groups may be unsubstituted or substituted with any of the functional groups represented by one or more of the following: halogen, cyano, nitro, amino, dialkylamino, hydroxyl, carboxyl, alkyl, alkenyl, alkynyl, cycloalkyl, alkylcarbonyl, alkylcarbonyloxy, alkoxy, alkoxycarbonyl, alkylthio, alkylthiocarbonyl, alkoxythiocarbonyl alkylaminocarbonyl, arylaminocarbonyl alkylsulfonyl, alkenyloxycarbonyl, alkynyloxycarbonyl, aryl, arylcarbonyl, aryloxy, aryloxycarbonyl, arylthio, heteroaryl, heteroaryloxycarbonyl or methylenedioxy, wherein the alkyl moiety or aryl moiety may be substituted with halogen, cyano, nitro, alkyl, alkoxy, haloalkyl, haloalkoxy, alkoxycarbonyl, cycloalkyl, aryl, or heterocycloalkyl; and R
5
is hydrogen or any one of the groups represented by R
4
; or R
4
and R
5
could combine to form a 4-8 membered heterocyclic ring;
wherein R
6
represents alkyl, haloalkyl, dialkylamino, unsubstituted or substituted aryl and heteroaryl; and R
7
represents hydrogen, halogen or any of the groups represented by R
6
;
—OR
4
,
—SR
4
,
—CH
2
R
10
,
—CH(R
10
)
2
,
—C(R
10
)
3
, or
—CH═CHR
10
wherein R
10
is carboxyl, alkyl, alkenyl, anyl, amino, cycloalkyl, heterocycloalkyl, alkylsulfonyl, arylsulfonyl, benzyl, aryl, heteroaryl, alkylcarbonyl, alkenylcarbonyl, alknykarbonyl, cycloalkylcarbonyl, atylcarbonyl, heteroarylcarbonyl, alkoxycarbonyl, alkyliiocarbonyl, cycloalkyloxycarbonyl, aryloxycarbonyl, arylthio-carbonyl, aryl-thiocarbonyl, heteroaryloxycarbonyl, aminocarbonyl, alkylaminocarbonyl, arylaminocaibonyl, heteroarylaminocarbonyl, alkoxycarbonylcarbonyl or arylcarbonylcarbonyl, where any of these groups may be unsubstituted or substituted with any of the functional groups represented by one or more of the following: halogen, cyano, nitro, amino, dialkylamino, hydroxyl, carboxyl, alkyl, alkenyl, alkynyl, cycloalkyl, alkylcarbonyl, alkylcarbonyloxy, alkoxy, alkoxycarbonyl, alkylthio, alkylthiocarbonyl, alkoxythiocarbonyl alkylaminocarbonyl, arylaminocarbonyl, alkylsulfonyl, alkenyloxycarbonyl, alkynyloxycarbonyl, aryl, arylcarbonyl, aryloxy, aryloxycarbonyl, arylthio, heteroaryl, heteroaryloxycarbonyl or methylenedioxy, wherein the alkyl moiety or aryl moiety may be substituted with halogen, cyano, nitro, alkyl, alkoxy, haloalkyl, haloalkoxy, alkoxycarbonyl, cycloalkyl, aryl, or heterocycloalkyl; provided that (1) Z is not alkyl, alkoxy, haloalkyl, haloalkoxy, alkylthio, haloalkylthio, alklenyl, haloalkenyl, amino, monoalkylamino, dialkylamino, alkoxyalkoxy or cyano, when Q is Q1 and R
2
is haloalkyl,
(2) Z is not amino when Q is Q3, and
(3) Z is not hydroxyl, alkoxy, alkenyloxy, alkynyloxy, haloalkoxy, haloalkenyloxy, or —NR
4
R
5
, wherein R
4
is alkyl, alkenyl, alkynyl, cycloalkyl, haloalkyl, haloalkenyl, alkylsulfonyl, alkylcarbonyl, alkoxycatbonyl, or cycloalkylalkyl, and R
5
is alkyl, alkenyl, alkynyl, cycloalkyl, haloalkyl, haloalkenyl, alkylcarbonyl, alkoxycarbonyl, or cycloalkylalkyl, when Q is Q14 or Q15.
DETAILED DESCRIPTION OF THE INVENTION
In the above definitions, the term alkyl used either alone or in compound words such as haloalkyl indicates either straight chain or branched alkyls containing 1-8 carbon atoms. Alkenyl and alkynyl include straight chain or branched
Gupta Sandeep
Pulman David A.
Tsukamoto Masamitsu
Wu Shao-Yong
Ying Bai-Ping
ISK Americas Incorporated
Patel Sudhaker B
Shah Mukund J.
Sughrue Mion Zinn Macpeak & Seas, PLLC
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