AR000556A1 - Proceso para preparar 2,6-difluorobenzonitrilo a partir de 2,6-diclorobenzonitrilo en ausencia de solventes. - Google Patents

Proceso para preparar 2,6-difluorobenzonitrilo a partir de 2,6-diclorobenzonitrilo en ausencia de solventes.

Info

Publication number
AR000556A1
AR000556A1 ARP950100773A AR10077395A AR000556A1 AR 000556 A1 AR000556 A1 AR 000556A1 AR P950100773 A ARP950100773 A AR P950100773A AR 10077395 A AR10077395 A AR 10077395A AR 000556 A1 AR000556 A1 AR 000556A1
Authority
AR
Argentina
Prior art keywords
dichlorobenzonitrile
difluorobenzonitrile
solvents
absence
tars
Prior art date
Application number
ARP950100773A
Other languages
English (en)
Original Assignee
Dow Agrosciences Llc
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 Dow Agrosciences Llc filed Critical Dow Agrosciences Llc
Publication of AR000556A1 publication Critical patent/AR000556A1/es

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C253/00—Preparation of carboxylic acid nitriles
    • C07C253/30—Preparation of carboxylic acid nitriles by reactions not involving the formation of cyano groups

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Saccharide Compounds (AREA)
  • Catalysts (AREA)

Abstract

Se trata de un proceso para obtener 2,6-difluorobenzonitrilo, haciendo reaccionar 2,6-diclorobenzonitrilo con metalfluoruros anhidros, en una reaccióncatalizada con catalizadores de transferencia de fase, a temperaturas entre 160° y 260°C -típicamente poliésteres, sales de fosfonio tetrasustituídos,sales de amonio tetrasustituídos y cryptan en ausencia de solventes. Una vez separado el producto formado del medio de reacción, la mezcla resultante esreciclada para un nuevo ciclo y además para evitar la acumulación de los alquitranes, el medio de reacción se procesa, para recuperar el catalizador detransferencia y descartar los alquitranes.
ARP950100773A 1994-12-28 1995-12-27 Proceso para preparar 2,6-difluorobenzonitrilo a partir de 2,6-diclorobenzonitrilo en ausencia de solventes. AR000556A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/365,726 US5502235A (en) 1994-12-28 1994-12-28 Solventless process for making 2,6 difluorobenzonitrile

Publications (1)

Publication Number Publication Date
AR000556A1 true AR000556A1 (es) 1997-07-10

Family

ID=23440092

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP950100773A AR000556A1 (es) 1994-12-28 1995-12-27 Proceso para preparar 2,6-difluorobenzonitrilo a partir de 2,6-diclorobenzonitrilo en ausencia de solventes.

Country Status (18)

Country Link
US (1) US5502235A (es)
EP (1) EP0800506B1 (es)
JP (1) JPH10511941A (es)
CN (1) CN1174546A (es)
AR (1) AR000556A1 (es)
AT (1) ATE187959T1 (es)
AU (1) AU702641B2 (es)
BR (1) BR9510428A (es)
CA (1) CA2209141A1 (es)
DE (1) DE69514122T2 (es)
DK (1) DK0800506T3 (es)
ES (1) ES2139951T3 (es)
FI (1) FI972742A (es)
HU (1) HU215936B (es)
IL (1) IL116634A (es)
TW (1) TW307748B (es)
WO (1) WO1996020168A1 (es)
ZA (1) ZA9510902B (es)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3840261B2 (ja) * 1995-06-20 2006-11-01 日本曹達株式会社 ２，３−ジハロゲノ−６−トリフルオロメチルベンゼン誘導体およびその製造方法
DE19702282C2 (de) * 1997-01-23 1998-11-19 Hoechst Ag Katalysator für Halex-Reaktionen
CN100545133C (zh) * 2001-05-17 2009-09-30 罗狄亚化学公司 离子性质的组合物作为取代试剂的用途,由氟化试剂构成的组合物及其使用方法
DE10227223A1 (de) * 2002-06-18 2004-01-08 Kühlein, Klaus, Prof.Dr. Verfahren zur Herstellung substituierter organischer Verbindungen und Verwendung von Katalysatoren für Substitutionsreaktionen
CN103044388B (zh) * 2011-10-17 2015-04-15 张家港市国泰华荣化工新材料有限公司 一种3,4—二氟环丁砜的制备方法
CN104387289B (zh) * 2014-10-30 2017-09-01 天津河清化学工业有限公司 二氟苯腈生产中降低催化剂用量的方法
CN112939782B (zh) * 2019-12-11 2022-09-30 兰州康鹏威耳化工有限公司 一种含氟芳基化合物的制备方法
CN113024414A (zh) * 2021-03-23 2021-06-25 江苏合泰新材料科技有限公司 一种高效合成含氟化合物的方法

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DE2803259A1 (de) * 1978-01-26 1979-08-02 Basf Ag Verfahren zur herstellung von fluorbenzolen
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FR2490634A1 (fr) * 1980-09-25 1982-03-26 Rhone Poulenc Ind Procede de preparation de fluorobenzonitriles
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Also Published As

Publication number Publication date
ATE187959T1 (de) 2000-01-15
AU702641B2 (en) 1999-02-25
DK0800506T3 (da) 2000-05-15
FI972742A (fi) 1997-08-27
CA2209141A1 (en) 1996-07-04
CN1174546A (zh) 1998-02-25
IL116634A (en) 2003-04-10
ZA9510902B (en) 1997-06-23
EP0800506A1 (en) 1997-10-15
FI972742A0 (fi) 1997-06-25
DE69514122T2 (de) 2000-04-20
US5502235A (en) 1996-03-26
TW307748B (es) 1997-06-11
DE69514122D1 (de) 2000-01-27
EP0800506B1 (en) 1999-12-22
BR9510428A (pt) 1998-07-07
JPH10511941A (ja) 1998-11-17
IL116634A0 (en) 1996-03-31
WO1996020168A1 (en) 1996-07-04
ES2139951T3 (es) 2000-02-16
HU215936B (hu) 1999-03-29
HUT77239A (hu) 1998-03-02
AU4164596A (en) 1996-07-19

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