Method for detecting uracil biosynthesis inhibitors and their use as herbicides
申请人:——
公开号:US20020058244A1
公开(公告)日:2002-05-16
This invention relates to a method for identifying compounds that specifically inhibit a metabolic target site or pathway in plants. Enzymes which are specifically affected by the method of the invention include plant pyrimidine biosynthetic pathway enzymes, and particularly the enzymes involved in the conversion of orotate to uridine-5′-monophosphate (UMP). Further, the invention relates to a method for control of undesirable monocotyledenous and dicotyledenous plant species.
Generation of an 4-Isoxazolyl Anion Species: Facile Access to Multifunctionalized Isoxazoles
作者:Taiki Morita、Shinichiro Fuse、Hiroyuki Nakamura
DOI:10.1002/anie.201608039
日期:2016.10.17
A direct functionalization of unsubstituted isoxazole (1) was achieved by generation of 4‐isoxazolyl anion species (3). An efficient 4‐iodination of isoxazole and halogen–metal exchange reaction using a turbo Grignard reagent (iPrMgCl⋅ LiCl) were essential for the generation of 3, which reacted with various electrophiles to give 4‐functionalized isoxazoles in good to high yields. Isoxazolyl boronate
PROCESS FOR THE PREPARATION OF 1-ARYL-3-CYCLOPROPYL-1,3-PROPANEDIONES
申请人:——
公开号:US20020002309A1
公开(公告)日:2002-01-03
A process for preparing a compound of the formula:
1
which comprises reacting a compound of the formula:
2
wherein R
1
is C
1-6
straight- or branched-chain alkyl, with a compound of the formula:
3
in an aprotic solvent in the presence of base.
4-(3-AMINOBENZOYL)-5-CYCLOPROPYLISOXAZOLES EFFECTIVE AS HERBICIDES
申请人:Kehne Heinz
公开号:US20110015073A1
公开(公告)日:2011-01-20
4-(3-Aminobenzoyl)-5-cyclopropylisoxazoles of the formula (I) are described as herbicides.
In this formula (I), A, X, Y and Z are radicals such as hydrogen, organic radicals such as alkyl, and other radicals such as halogen.
Process for preparing diketone compounds and precursors thereto
申请人:——
公开号:US20010014761A1
公开(公告)日:2001-08-16
A process for preparing compounds of the formula:
1
wherein R
2
is lower alkyl; or phenyl optionally substituted by from one to five groups, the same or different, which are lower alkyl, lower haloalkyl, halogen or —SR
4
; R
3
is halogen, lower alkyl, lower haloalkyl, lower alkoxy, lower haloalkoxy, —S-alkyl, cycloalkyl having from 3 to 7 carbon atoms in the ring, alkenyl or alkynyl having from 3 to 7 carbon atoms, or —(CR
5
R
6
)—SR
2
wherein q is one or two; R
4
is lower alkyl; R
5
and R
6
independently represent hydrogen, lower alkyl or lower haloalkyl; and n is zero or an integer from one to three; intermediate compounds of the formula:
2
and processes for preparing them.