49754-15-6Relevant articles and documents
Herbicidal combinations containing 2-?(4-heterocyclic-phenoxymethyl)phenoxy!alkanoates
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, (2008/06/13)
Herbicidal compositions containing herbicidal 2-?(4-heterocyclic-phenoxymethyl)phenoxy!alkanoates in combination with other herbicides are disclosed. The herbicidal 2-?(4-heterocyclic-phenoxymethyl)phenoxy!-alkanoates are of the formula STR1 in which R' is methyl, W is oxygen, Q is STR2 R is hydrogen, M, lower alkyl; cycloalkyl comprising from 3 to 6 carbon atoms; lower alkenyl; or lower alkynyleach optionally substituted with one or more chlorine or fluorine, or --?CHR7 --(CH2)m O!n R8 ; each of R1 through R5 is lower alkyl or lower haloalkyl; R6 is lower alkyl, lower haloalkyl, lower cyano-alkyl, lower alkoxyalkyl, lower alkoxycarbonylalkyl, lower arylalkyl, or amino; R7 is hydrogen or methyl; R8 is lower alkyl; X is hydrogen, methyl, fluorine, or chlorine; Y is hydrogen; Z is hydrogen, fluorine, chlorine, bromine, lower alkyl, or methoxy; Z' is hydrogen, fluorine, or chlorine; Z and Z' taken together may be --(CH2)4 -- to form a tetrahydronaphthyl moiety; m is 0 to 2, and n is 1 to 6; and M is sodium, potassium or ammonium. These herbicidal alkanoates are used with either grass-controlling or broadleaf herbicides.
Herbicical 2-[(4-heterocyclic-phenoxymethyl)phenoxy]-alkanoates
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, (2008/06/13)
Herbicidal compounds, compositions containing them, and a method for controlling weeds by application of the compositions are disclosed. The herbicidal compounds are 2-[(4-heterocyclic(phenoxymethyl)phenoxy]alkanoates of the formula STR1 in which A is a derivative of an alkanoate bonded to the phenoxy oxygen at the alpha carbon, and Q is 4-difluoromethyl-4,5-dihydro-3-methyl-1,2,4-triazol-5(1H)-on-1-yl, 3,4,5,6-tetrahydrophthalimid-1-yl, 1-(1-methylethyl)imidazolidin-2,4-dion-3-yl, 1,4-dihydro-4-(3-fluoropropyl)-5H-tetrazol-5-on-1-yl, 3-chloro-4,5,6,7-tetrahydroindazol-2-yl, 4-methyl-1,2,4-triazine-3,5-dion-2-yl, 8-thia-1,6-diazabicyclo[4.3.0]nonane-7-on-9-ylimino, or 1-methyl-6-trifluoromethyl-2,4-pyrimidinedione-3-yl; X is hydrogen, fluorine, or chlorine; Y is hydrogen; W is oxygen or sulfur; Z is hydrogen, fluorine, chlorine, bromine, lower alkyl, or methoxy; Z' is hydrogen, fluorine, or chlorine; and the group AO-- may be in the 2, 3, or 4-position of the phenyl ring.
Purines, Pyrimidines, and Imidazoles. Part 60. Some Oxazolopyrimidines and a Novel Conversion of a Cyanouracil into a Barbituric Acid Derivative
Alonso, Rosario,Shaw, Gordon,Wright, David
, p. 2795 - 2799 (2007/10/02)
The synthesis of several 6-acetyl(or 6-cyano)-2,3-dihydro-7-oxo-7H-oxazolopyrimidines (1) from 5-acetyl(or 5-cyano)-1-uracils and 5-acetyl(or 5-cyano, or 5-cinnamoyl, or 5-N-ethoxycarbonylcarbamoyl)-1-(1-ethyl-2-hydroxyethyl)uracils (2) by cyclisation of their toluene-4-sulphonates or methanesulphonates with triethylamine is described.The reaction of 6-cyano-1-(1-ethyl-2-hydroxyethyl)-2,3-dihydro-7-oxo-7H-oxazolopyrimidine (1e) with cyclohexylamine produced 5-amino-6-cyclohexyliminomethyl-1-ethyl-2,3-dihydro-7-oxo-7H-oxazolopyrimidine (6a) which with hot water gave ammonia and 5-cyclohexylaminomethylene-1-(1-ethyl-2-hydroxyethyl)barbituric acid (7a).Similar reactions occurred with butylamine and benzylamine and with related oxazolopyrimidines, but in contrast compound (1e) and morpholine gave the isocytosine (11).The structures assigned were confirmed by the synthesis of the acid (7a) and of the related 5-cyclohexylaminomethylene-1-methylbarbituric acid and by 1H n.m.r., i.r., u.v., and mass spectroscopy.
