摘要:
The invention herein relates to titled compounds having the structure ##STR1## wherein the R.sub.1 -(R.sub.4).sub.n members are as defined in the claims. Characteristic features of these compounds are the haloalkyl R.sub.2 radical and cyclization of two R.sub.4 members at the meta and para positions of the phenyl ring to form a substituted benzoxazinone ring fused to the phenyl or benzthiazinone ring. Such compounds are useful as active ingredients in herbicidal compositions to control undesirable weeds in various crops.
摘要:
This disclosure relates to N-nitroso-N-phosphonomethylglycine triesters and their use as herbicides and in herbicidal compositions. More particularly, this disclosure relates to N-nitroso-N-phosphonomethylglycine esters wherein a lower alkyl or benzyl group is bonded to the carboxyl moiety and a phenyl or substituted phenyl group is bonded to phosphorus.
摘要:
This disclosure relates to novel ester derivatives of N-arylthio-N-phosphonomethylglycinonitrile which are useful as herbicides. This disclosure further relates to herbicidal compositions containing such N-phosphonomethylglycinonitriles and to herbicidal methods employing such compounds and compositions.
摘要:
Alkyl-[di(benzyl) or di(aryl)]esters of N-phosphonomethyl glycine are produced by the reaction of a dibenzyl or diaryl phosphite with an N-methylene alkyl glycinate trimer. These esters and the hydrolysis products thereof containing at least one benzyloxy or aryloxy group bonded to phosphorus are novel compounds having the formula ##STR1## wherein R is a member of the group consisting of phenyl, benzyl, naphthyl, biphenylyl, benzyloxyphenyl and phenyl, benzyl or naphthyl groups substituted with from 1 to 3 groups selected from the class consisting of hydroxyl, lower alkyl, lower alkoxy, lower alkylthio, trifluoromethyl, carbo (lower alkoxy), nitro, or halo; R.sub.1 is hydrogen or an R group, and R.sub.2 is a lower alkyl group or hydrogen, and the strong acid salts of the compounds wherein neither R.sub.1 or R.sub.2 is H. These compounds are useful as post-emergent herbicides.
摘要:
N,N'-methylenebis-[(O,O-diaryl N-phosphonomethylglycinonitriles] are described as well as a process for producing same. These compounds are useful as herbicides.
摘要:
O-aryl N-phosphonomethylglycinonitriles having utility as herbicides are prepared by reacting in the absence of acidic catalysts 1,3,5-tricyanomethyl-hexahydro-1,3,5-triazine with a diaryl phosphite. The products can be hydrolyzed to form N-phosphonomethylglycine.
摘要:
O-aryl N-phosphonomethylglycinonitriles are described as well as a process for producing same. These phosphonomethyl substituted glycinonitriles are useful as herbicides.
摘要:
The disclosure herein relates to a process for the preparation of compounds according to Formula N ##STR1## which comprises using a compound of Formula M ##STR2## as starting material for alkylation to said compounds of Formula N in an inert solvent at temperatures within the range of 0.degree.-200.degree. C. whereinR.sub.1 is C.sub.1-5 alkyl;R.sub.2 is C.sub.1-5 haloalkyl;R.sub.3 is halogen;R.sub.5 is hydrogen or halogen;q is 0-2;R.sub.28 and R.sub.30 are independently an alkyl, alkenyl or alkynyl radical having up to 5 carbon atoms or said radicals substituted with a ##STR3## radical; X is O, S(O).sub.m, NR.sub.19 or CR.sub.20 R.sub.21 ;Y is O, S(O).sub.m or NR.sub.22 ;m is 0-2 andR.sub.13 and R.sub.19 -R.sub.22 are hydrogen or an R.sub.28 member.The above compounds are useful as herbicides.
摘要:
This disclosure relaes to arylsulfenyl derivatives of benzyl and aryl esters of N-phosphonomethylglycines. This disclosure further relates to herbicidal compositions containing arylsulfenyl derivatives of benzyl and aryl esters of N-phosphonomethylglycines, to the use thereof, and to herbicidal methods employing such compounds and compositions.
摘要:
This invention relates to novel esters of N,N'-methylene-bis-[N-[(diaryloxyphosphinyl)methyl]glycine] which are useful as herbicides. The invention also relates to herbicidal methods and compositions employing the novel esters.