Abstract:
The present invention relates to a process for providing a compound of formula (I):, wherein R is hydrogen or R', wherein R' is –(C 1 -C 4 )alkyl, and Hal is a halogen, the process comprising the step of: reacting a compound of formula (II) wherein Hal is defined as above, with an alkali metal alkoxide of the formula XOR', wherein X is an alkali metal, and R' is defined as above.
Abstract:
The present invention relates to a process for providing a compound of formula (IV):wherein R 1 and R 2 are each independently C 1 -C 4 alkyl, and Hal is independently Cl or Br, the process comprising the steps of: (i) reacting a compound of formula (II) wherein R 1 and Hal is defined as above, to obtain a compound of formula (III) wherein R 1 and Hal is defined as above, and (ii) reacting the compound of formula (III) to obtain the compound of formula (IV).
Abstract:
The present invention relates to a process for providing a compound of formula (I): wherein Hal is a halogen, the process comprising the step of: reacting a compound of formula (II) wherein Hal is defined as above, with an alkali metal sulfite of the formula X 2 SO 3 and an alkali metal hydroxide of the formula YOH, wherein X and Y are independently selected from an alkali metal.
Abstract translation:本发明涉及提供式(I)化合物的方法:其中Hal是卤素,该方法包括以下步骤:使其中Hal如上定义的式(II)化合物与碱金属亚硫酸盐反应 的式X 2 SO 3和式YOH的碱金属氢氧化物,其中X和Y独立地选自碱金属。
Abstract:
The present invention relates to a process for providing a compound of formula (IV), wherein R is - (C 1 -C 4 )alkyl, the process comprising the step of: reacting a compound of formula (III), wherein R is defined as above, in the presence of a Pd(ll) catalyst, a chlorine-containing reagent, a co-oxidant, and an acid.
Abstract:
The present invention relates to a process for providing: a compound of formula (IV): wherein R 1 is hydrogen or -(C 1 -C 4 )alkyl, R 2 is -(C 1 -C 4 )alkyl, and each Hal is an independently selected halogen, the process comprising the step of: Reacting a compound of formula (III) wherein R 1 and Hal are defined as above, and R 3 is an alkali metal, in the presence of a Ag(l) compound, a Cu(ll) compound, and a compound selected from Si(OR 2 ) 4 and B(OR 2 ) 3 .
Abstract:
A process for reacting chemical compounds comprising the step of oxidizing a compound of formula (II) wherein R 1 and R 2 are halogen, and R 3 is -(C 1 -C 4 ) alkyl, in the presence of a peroxy reagent to obtain a compound of formula (III).
Abstract:
2-[(1 -cyanopropyl)carbamoyl]-5-methoxymethyl nicotinic acids of formula (I) where Z is hydrogen or halogen; Z 1 is hydrogen, halogen, cyano or nitro; R 1 is C 1 C 4 alkyl; R 2 is C 1 C 4 alkyl, C 3 -C 6 cycloalkyl or R 1 and R 2 , when taken together with the atom to which they are attached, represent a C 3 -C 6 cycloalkyl group optionally substituted with methyl, and R 3 is hydrogen or a cation preferably selected from the group consisting of alkali metals, alkaline earth metals, manganese, copper, iron, zinc, cobalt, lead, silver, nickel, ammonium and organic ammonium; are useful intermediates for the synthesis of herbicidal imidazolinones.
Abstract:
Process for manufacturing substituted 5-methoxymethylpyridine-2,3-dicarboxylic acid derivatives Abstract A process for manufacturing a 2,3-disubstituted-5-methoxymethylpyridine of formula (I), where Z is H or halogen; Z 1 is H, halogen, CN or NO 2 ; Y 2 is OM, and M is an alkali metal or an alkaline earth metal, comprises the step of: (i) reacting a compound of formula (II) where Q is a tertiary aliphatic or cyclic, saturated, partially unsaturated or aromatic amine; Z is H or halogen; Z 1 is H, halogen, CN or NO 2 ; Y 1 and Y 2 are each independently OR 1 , NR 1 R 2 , or when taken together Y 1 Y 2 is -O-, -S- or -NR 3 -; R 1 and R 2 are each independently H, C 1 -C 4 alkyl optionally substituted with C 1 -C 4 alkoxy or phenyl optionally substituted with one to three C 1 -C 4 alkyl groups, C 1 -C 4 alkoxy groups or halogen atoms, or phenyl optionally substituted with one to three C 1 -C 4 alkyl groups, C 1 -C 4 alkoxy groups or halogen atoms; R 3 is H or C 1 -C 4 alkyl, in a methanol/H 2 O mixture, comprising at least 20% by weight H 2 O (based on the sum of water and bromide (II)), with a base comprising MOCH 3 and/or MOH, where M is alkali metal or alkaline earth metal, under pressure in a closed vessel at a temperature of from 75 to 110°C. Compounds of formula (I) are useful intermediates in the synthesis of herbicidal imidazolinones, like imazamox.