HUP0000215A2 - Hidrazon-béta-keto-észter előállítása diazo-észter reakciójával - Google Patents

Hidrazon-béta-keto-észter előállítása diazo-észter reakciójával

Info

Publication number
HUP0000215A2
HUP0000215A2 HU0000215A HUP0000215A HUP0000215A2 HU P0000215 A2 HUP0000215 A2 HU P0000215A2 HU 0000215 A HU0000215 A HU 0000215A HU P0000215 A HUP0000215 A HU P0000215A HU P0000215 A2 HUP0000215 A2 HU P0000215A2
Authority
HU
Hungary
Prior art keywords
hydrazone
alkyl
ester
hydrazine
formula
Prior art date
Application number
HU0000215A
Other languages
English (en)
Inventor
Jerry D. Clark
Yinong Ma
Lefteris Patelis
James C. Peterson
Ajit S. Shah
Original Assignee
Monsanto Co.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Monsanto Co. filed Critical Monsanto Co.
Publication of HUP0000215A2 publication Critical patent/HUP0000215A2/hu
Publication of HUP0000215A3 publication Critical patent/HUP0000215A3/hu

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D237/00—Heterocyclic compounds containing 1,2-diazine or hydrogenated 1,2-diazine rings
    • C07D237/02—Heterocyclic compounds containing 1,2-diazine or hydrogenated 1,2-diazine rings not condensed with other rings
    • C07D237/06—Heterocyclic compounds containing 1,2-diazine or hydrogenated 1,2-diazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members
    • C07D237/10—Heterocyclic compounds containing 1,2-diazine or hydrogenated 1,2-diazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D237/24—Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C249/00—Preparation of compounds containing nitrogen atoms doubly-bound to a carbon skeleton
    • C07C249/16—Preparation of compounds containing nitrogen atoms doubly-bound to a carbon skeleton of hydrazones

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

A jelen találmány tárgya (III) általánős képletű - a képletben R1jelentése alkil-, aril-, ciklőalkil- vagy heterőarőmás csőpőrt, R2jelentése alkilcsőpőrt - hidrazőn-b-kető-észterek előállítása alkil-diaző-észter és hidrazőn-aldehid reakicójával, Lewis-sav jelenlétében.Egy kedvező megvalósításban a hidrazőn-b-kető-észtert alkil-sav-klőriddal bázis jelenlétében majd az követően sav hőzzáadásával (I)általánős képletű - a képletben R1 és R2 jelentése a fenti és R3jelentése alkil- vagy fenilcsőpőrt - piridazinőnszármazékká alakítják.A jelen találmány tárgya tővábbá főlyamatős eljárás hidrőzőn-aldehidelőállítására, amely eljárásban hidrazinszármazékőt elegyítenekgliőxállal, és a hidrazinszármazékőkat és a gliőxált szabályőzőttsebességgel, egyidejűleg adagőlják egy reaktőrba. (III) (I) ŕ
HU0000215A 1996-08-30 1997-08-29 Synthesis of a hydrazone betha-keto ester by the reaction with a diazo ester HUP0000215A3 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US2496396P 1996-08-30 1996-08-30
US4345597P 1997-04-10 1997-04-10
PCT/US1997/015345 WO1998008807A1 (en) 1996-08-30 1997-08-29 SYNTHESIS OF A HYDRAZONE β-KETO ESTER BY THE REACTION WITH A DIAZO ESTER

Publications (2)

Publication Number Publication Date
HUP0000215A2 true HUP0000215A2 (hu) 2000-06-28
HUP0000215A3 HUP0000215A3 (en) 2001-02-28

Family

ID=26699108

Family Applications (1)

Application Number Title Priority Date Filing Date
HU0000215A HUP0000215A3 (en) 1996-08-30 1997-08-29 Synthesis of a hydrazone betha-keto ester by the reaction with a diazo ester

Country Status (10)

Country Link
EP (1) EP0923540B1 (hu)
CN (1) CN1109018C (hu)
AR (1) AR011506A1 (hu)
AT (1) ATE215066T1 (hu)
AU (1) AU4173897A (hu)
CZ (1) CZ66299A3 (hu)
DE (1) DE69711397T2 (hu)
HU (1) HUP0000215A3 (hu)
PL (1) PL331852A1 (hu)
WO (1) WO1998008807A1 (hu)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112679291B (zh) * 2020-12-25 2023-03-17 中国科学院西北高原生物研究所 一种α-酮酯化合物的制备方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4707181A (en) * 1980-10-03 1987-11-17 Rohm And Haas Company 1-aryl-1,4-dihydro-4-oxo-3,5-dicarboxypyridazine derivatives and their use as plant growth regulators and hybridizing agents
US4962199A (en) * 1989-04-06 1990-10-09 Monsanto Company Pyridazines by magnesium halide catalyzed cyclization
US5189163A (en) * 1989-08-30 1993-02-23 Imperial Chemical Industries Plc Method of preparing pyridazinone derivatives

Also Published As

Publication number Publication date
HUP0000215A3 (en) 2001-02-28
ATE215066T1 (de) 2002-04-15
AR011506A1 (es) 2000-08-30
DE69711397D1 (de) 2002-05-02
DE69711397T2 (de) 2002-11-28
CZ66299A3 (cs) 1999-08-11
CN1234021A (zh) 1999-11-03
WO1998008807A1 (en) 1998-03-05
EP0923540A1 (en) 1999-06-23
EP0923540B1 (en) 2002-03-27
AU4173897A (en) 1998-03-19
PL331852A1 (en) 1999-08-16
CN1109018C (zh) 2003-05-21

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