178813-81-5Relevant articles and documents
Process for producing acrylic acid derivative
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Page 34, (2010/02/08)
Processes for producing a compound represented by the formula (1), which includes an acrylic acid derivative and is useful as an agricultural chemical or medicine. One of the processes comprises the step of formulating a compound (3) and converting the OH of the resultant compound (2) into OR″. The first step comprises reacting a formic or orthoformic ester in the presence of a Lewis acid and a base. The second step comprises reacting the compound with R″OH or with R″OH and CH(OR″)3 under acidic conditions or using a phase-transfer catalyst in a two-phase system and regulating the base and the concentration thereof to stereoselectively synthesize the target compound. In another, process, the compound is efficiently produced without isolating the compound. The compound can also be produced without the compound (2).
Methods for highly selectively o-alkylating amide compounds with the use of copper salts
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, (2008/06/13)
Compounds having one or more structures represented by general formula (I) as partial structure thereof, which are typified by pyrimidone and pyridone compounds, have two or more reaction sites in alkylation reactions. Accordingly, there is no process for
PROCESSES FOR PRODUCING ACRYLIC ACID DERIVATIVE
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, (2008/06/13)
Processes for producing a compound (1) represented by formula (1), which includes an acrylic acid derivative and is useful as an agricultural chemical or medicine. One of the processes comprises the step of formylating a compound (3) (step (1)) and the step of converting the OH of the resultant compound (2) into OR" (step (2)). The step (1) comprises reacting a formic or orthoformic ester in the presence of a Lewis acid and a base. The step (2) comprises [1] reacting the compound (2) with R" OH or with R" OH and CH(OR")3under acidic conditions or [2] using a phase-transfer catalyst in a two-phase system and regulating the base and the concentration thereof to stereoselectively synthesize the target compound. In another process, the compound (1) is efficiently produced without isolating the compound (2). In still another process, the compound (1) is directly produced without via the compound (2).
2-?(2-Alkoxy-6-trifluoromethylpyrimidin-4-yl)oxymethylene!phenylacetic acid derivatives, their preparation and intermediate therefor, and use thereof
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, (2008/06/13)
2-?(2-Alkoxy-6-trifluoromethylpyrimidin-4-yl)oxymethylene!-phenylacetic acid derivatives of the formula I STR1 where the index and the substituents have the following meanings: U is CH or N; V is O or NH; R is alkyl; R1 is cyano, halogen, alkyl