摘要:
The present invention relates to a process for preparing 4-alkoxycarbonyl-3-aminothiophenes of the general formula (I) and/or their hydrochlorides of the formula (I)′ in which R1 and R2 are each as defined in the description, and/or their mono- or bisacetylated or mono- or bisformylated form, by reacting enamines of the formula (II) in which R1 and R2 are each as defined in the description, and/or their mono- or bisacetylated or mono- or bisformylated form, with a chlorinating agent in the presence of one or more diluents, and also to a process for preparing the compounds of the formula (II).
摘要:
Novel optically active Δ1-pyrrolines of the formula (I) in which R1, R2, R3, R4, and m are each as defined in the description, a plurality of the processes for preparing these substances and their use for controlling pests.
摘要:
Aminocarbonyl-substituted thiensulfonylamino(thio)carbonyl-triazolin(ethi)ones, processes for their preparation and their useThe invention relates to novel substituted thien-3-ylsulfonylamino(thio)carbonyl-triazolin(ethi)ones of the formula (I), in which Q1, Q2, R1, R2, R3, R4 and R5 are as defined in the description, and also to salts of compounds of the formula (I), to processes for their preparation and to their use as herbicides.
摘要:
The present invention relates to a process for preparing α-fluorinated esters from α-hydroxy esters by reaction with a dihalocarbonyl compound (or an equivalent) to give haloformates and further to give fluoroformates, which are then decomposed thermally in the presence of suitable catalysts. The invention further relates to the individual steps of the process and in some cases to novel fluoroformates.
摘要:
Compositions are disclosed which comprise a homopolyamino acid and stereoisomers thereof adsorbed on an insoluble support material. The compositions are useful as catalysts for the stereoselective epoxidation of olefins.
摘要:
The present invention relates to a process for preparing compounds of the general formula (I) in which R1 and R2 are as defined in the description by reacting compounds of the formula (II) in which R1 and R2 are as defined in the description with phosgene in the absence of a base and in the presence of one or more diluents and also optionally of a catalyst.
摘要:
The present invention relates to a process for preparing compounds of the general formula (I) in which R1 and R2 are as defined in the description by reacting compounds of the formula (II) in which R1 and R2 are as defined in the description with phosgene in the absence of a base and in the presence of one or more diluents and also optionally of a catalyst.
摘要:
Novel optically active Δ1-pyrrolines of the formula (I) in which R1, R2, R3, R4, and m are each as defined in the description, a plurality of the processes for preparing these substances and their use for controlling pests.