Process for the preparation of .beta.- aminoacrylic acid esters
申请人:Bayer Aktiengesellschaft
公开号:US05446192A1
公开(公告)日:1995-08-29
.beta.-Aminoacrylic acid esters can be prepared by reacting acetic acid esters of the formula H.sub.2 CR.sub.1 --COOR.sup.2 (II) with aminal esters of the formula ##STR1## at 0.5-10 bar and 50.degree.-170.degree. C. in an aprotic polar solvent. The radicals R.sup.1 to R.sup.7 are as defined in the description.
Substituted N-[pyrimidin-2-ylmethyl]carboxamides and their use as herbicides and plant growth regulators
申请人:Hoffmann Gerhard Michael
公开号:US20060223708A1
公开(公告)日:2006-10-05
What is described are N-[pyrimidin-
2
-ylmethyl]carboxamides of the formula (I) and their use as herbicides.
In this formula (I), X
1
and X
2
are hydrogen or methyl, R
1
to R
4
are various radicals and A is an aromatic or heteroaromatic ring.