6-(FLUOROALKYL)-3,4-DIHYDRO-2H-PYRAN-5-CARBOXYLATE DERIVATIVE AND METHOD FOR PRODUCING THEM

6-(FLUOROALKYL)-3,4-DIHYDRO-2H-PYRAN-5-CARBOXYLATE DERIVATIVE AND METHOD FOR PRODUCING THEM

To provide a method that makes it possible to readily and efficiently produce a 2-(fluoroalkyl) nicotinate to be a key intermediate in the production of a bactericide in agricultural and horticultural fields.MEANS: The present invention provides 6-(fluoroalkyl)-3,4-dihydro-2H-pyran-5-carboxylate der...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: ONO RYUTA, MORITA MOTOAKI, OHASHI TAKUMI
Format: Patent
Sprache:eng ; jpn
Schlagworte:
CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
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Beschreibung
Zusammenfassung:To provide a method that makes it possible to readily and efficiently produce a 2-(fluoroalkyl) nicotinate to be a key intermediate in the production of a bactericide in agricultural and horticultural fields.MEANS: The present invention provides 6-(fluoroalkyl)-3,4-dihydro-2H-pyran-5-carboxylate derivative represented by general formula (1) and a method for producing the same, by reacting a fluorinated 2-(alkoxymethylidene)-β-keto ester derivative with a vinyl compound (where R1, R2, R3, Rf and X are defined herein).SELECTED DRAWING: None 【課題】農園芸分野の殺菌剤の製造において、重要な中間体となる２－（フルオロアルキル）ニコチン酸エステルを簡便且つ効率良く製造する方法を提供すること。【手段】フッ素化された２－（アルコキシメチリデン）－β－ケトエステル誘導体とビニル化合物を反応させることを特徴とする、一般式（１）で示される６－（フルオロアルキル）－３，４－ジヒドロ－２Ｈ－ピラン－５－カルボン酸エステル誘導体及びそれらを製造する方法TIFF2023063617000032.tif29166（式中、Ｒ1、Ｒ２、Ｒ３、Ｒｆ及びＸは、前記と同じ意味を表す。）【選択図】なし