摘要:
The present invention relates to a novel process for preparing known fungicidally active 1,3-dimethyl-5-fluoro-1H-pyrazole-4-carboxamides from the corresponding acid fluoride and aniline derivatives in the absence of an acid acceptor.
摘要:
The invention relates to a process for the preparation of a compound of formula (I): Which comprises reaction of a compound of formula (II) with a compound of the formula (III) in the presence of a chlorinating agent, followed by reaction of the resultant compound of the formula (IV) with a compound of formula (V) in the presence of a base: wherein the various symbols are as defined in claim 1.
摘要:
4-Haloalkylnicotinonitriles having the formula (I) which are suitable as intermediates in the preparation of pesticides, are obtained by: (a) reacting a 3-amino-1-haloalkyl-2-propen-1-one RF—C(O)—CH═CH—NH2 (II) in a condensation reaction with a compound of the formula (III) to (VII), (R1Z)CH═CH—CN (III) (R1Z)2CH—CH2—CN (IV) Hal-CH═CH—CN (V) Hal2CH—CH2CN (VI) HC≡C—CN (VII), to give a compound of the formula (VIII), (IX) and/or (X), RF—C(O)—CH═CH—NH—CH═CH—CN (VIII) RF—C(O)—CH═CH—NH—CH(ZR1)—CH2—CN (IX) RF—C(O)—CH═CH—NH—CH(Hal)—CH2—CN (X) wherein RF is (C1-C4)-haloalkyl, R1 is alkyl, Hal is Cl or Br and each Z, independently, is O, S, NR or OCO; and (b) subjecting the reaction product to a ring closure reaction.
摘要:
The invention relates to a process for the preparation of a compound of formula (I): Which comprises reaction of a compound of formula (II) with a compound of the formula (III) in the presence of a chlorinating agent, followed by reaction of the resultant compound of the formula (IV) with a compound of formula (V) in the presence of a base: wherein the various symbols are as defined in claim 1.
摘要:
The invention relates to a process for the preparation of a compound of formula (I): Which comprises reaction of a compound of formula (II) with a compound of the formula (III) in the presence of a chlorinating agent, followed by reaction of the resultant compound of the formula (IV) with a compound of formula (V) in the presence of a base: wherein the various symbols are as defined in claim 1.
摘要:
The invention relates to new salts from chiral 3-halophthalic acid derivatives, a method for their production, their use for the production of chiral phthalic acid diamides as well as a new method for the production of chiral phthalic acid diamides.
摘要:
The invention relates to a novel process for preparing 3-halophthaloyl chlorides (3-halobenzene-1,2-dicarbonyl chlorides) from the corresponding 3-halophthalic anhydrides by reacting with phosgene in the presence of an N,N-dialkylformamide.
摘要:
A process for preparing compounds of the formula (IX) by a) reaction of haloalkyl(thio)acetic acids of the formula (II) with formamides of the formula (III) to give vinimidinium salts of the formula (I), b) reaction of vinimidinium salts of the formula (I) with hydrazines of the formula (V) to give pyrazoles of the formula (IV) c) base-catalyzed reaction of compounds of the formula (VI) with pyrazoles of the formula (IV) to give compounds of the formula (VII) and d) base-catalyzed reaction of compounds of the formula (VII) with compounds of the formula (VIII), in which R1 to R5 are various radicals such as alkyl, X are substituted aromatic radicals such as phenyl, and Z is CH or N.
摘要:
The present invention relates to a process for preparing fluoromethyl-substituted heterocycles of the formula (I) in which R1, R2, R3 and A are each as defined in the disclosure, by fluorinating the corresponding chloromethyl-substituted precursors.
摘要:
The present invention relates to a process for preparing 2-dihaloacyl-3-aminoacrylic esters of the formula (I) characterized in that acid halides of the formula (II) are reacted with dialkylaminoacrylic esters of the formula (III) in which R, R1, R2, X1, X2 and Hal are each as defined in the description in a water-immiscible organic solvent in the presence of a base, to the novel 2-dihaloacyl-3-aminoacrylic esters of the formula (I) themselves, to their use for preparing 3-dihalomethylpyrazoles, to a process for preparing 3-dihalomethylpyrazoles, and also to novel 3-dihalomethylpyrazoles.
摘要翻译:本发明涉及制备式(I)的2-二卤代-3-氨基丙烯酸酯的方法,其特征在于式(II)的酰卤与式(III)的二烷基氨基丙烯酸酯反应,其中R,R R 1,R 2,X 1,X 2和X 2各自如在描述中所定义的在水中 在碱的存在下,与式(I)本身的新型2-二卤代酰基-3-氨基丙烯酸酯,其用于制备3-二卤代甲基吡唑的方法相比,可用于制备3-二卤代甲基吡唑的方法,以及 到新的3-二卤代甲基吡唑。