ES2180186T3 - Procedimiento de nitracion para difenil-eteres. - Google Patents
Procedimiento de nitracion para difenil-eteres.Info
- Publication number
- ES2180186T3 ES2180186T3 ES98933766T ES98933766T ES2180186T3 ES 2180186 T3 ES2180186 T3 ES 2180186T3 ES 98933766 T ES98933766 T ES 98933766T ES 98933766 T ES98933766 T ES 98933766T ES 2180186 T3 ES2180186 T3 ES 2180186T3
- Authority
- ES
- Spain
- Prior art keywords
- compound
- optionally substituted
- general formula
- alkyl
- halo
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C201/00—Preparation of esters of nitric or nitrous acid or of compounds containing nitro or nitroso groups bound to a carbon skeleton
- C07C201/06—Preparation of nitro compounds
- C07C201/08—Preparation of nitro compounds by substitution of hydrogen atoms by nitro groups
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C303/00—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides
- C07C303/36—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of amides of sulfonic acids
- C07C303/40—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of amides of sulfonic acids by reactions not involving the formation of sulfonamide 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)
- Cephalosporin Compounds (AREA)
Abstract
Un proceso para preparar un compuesto de fórmula I: I donde: R1 es hidrógeno, alquilo C1-C6, alquenilo C2-C6 o alquinilo C2-C6, cualquiera de los cuales puede estar sustituido de manera opcional con uno o más sustituyentes escogidos entre halógenos y OH; ó COOR4, CONR4R5 ó CONHSO2R4; R4 y R5 son hidrógenos independientes o grupos alquilo C1-C4 sustituidos de manera opcional con uno o más átomos de halógeno; R6 es un átomo de halógeno o un grupo R4; R2 es hidrógeno o halo; R3 es alquilo C1-C4, alquenilo C2-C4 o alquinilo C2-C4, cualquiera de los cuales puede estar sustituido de manera opcional con uno o más átomos de halógeno; o halo; el proceso comprende hacer reaccionar un compuesto de fórmula general II: II donde R1, R2 y R3 se definen igual que en el caso de la fórmula general I con un agente nitrante formado por ácidos sulfúrico y nítrico en presencia de un disolvente orgánico y de anhídrido acético, la relación molar de anhídrido acético respecto a compuesto de fórmula general II varíade 1:1 a 3:1, caracterizado porque los ácidos se añaden a la mezcla de reacción de manera secuencial y porque el disolvente orgánico es perklone
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/901,545 US6028219A (en) | 1995-09-13 | 1997-07-28 | Process for the nitration of diphenylethers |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2180186T3 true ES2180186T3 (es) | 2003-02-01 |
Family
ID=25414397
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES98933766T Expired - Lifetime ES2180186T3 (es) | 1997-07-28 | 1998-07-07 | Procedimiento de nitracion para difenil-eteres. |
Country Status (18)
Country | Link |
---|---|
US (1) | US6028219A (es) |
EP (1) | EP1000010B1 (es) |
JP (1) | JP2001510818A (es) |
KR (1) | KR100571093B1 (es) |
CN (1) | CN1176899C (es) |
AR (1) | AR015137A1 (es) |
AT (1) | ATE224865T1 (es) |
AU (1) | AU8346998A (es) |
BR (1) | BR9811048A (es) |
CA (1) | CA2291438C (es) |
DE (1) | DE69808300T2 (es) |
DK (1) | DK1000010T3 (es) |
ES (1) | ES2180186T3 (es) |
HU (1) | HUP0002525A3 (es) |
IL (1) | IL133151A (es) |
TW (1) | TW436472B (es) |
WO (1) | WO1999005087A1 (es) |
ZA (1) | ZA986637B (es) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9930369D0 (en) * | 1999-12-22 | 2000-02-09 | Zeneca Ltd | Chemical process |
JP3865635B2 (ja) * | 2000-05-26 | 2007-01-10 | エンゲルハード・リヨン | 組織工学及び生体材料製造のためのコラーゲンベースによる支持体 |
DE102007010161A1 (de) * | 2007-03-02 | 2008-09-04 | Saltigo Gmbh | Verfahren zur Nitrierung substituierter Benzole in Gegenwart von Propionsäure |
CN102329255B (zh) * | 2011-10-31 | 2013-11-13 | 江苏长青农化股份有限公司 | 定向硝化合成氟磺胺草醚工艺 |
CN103387524B (zh) * | 2013-07-23 | 2015-04-15 | 山东科源化工有限公司 | 一种氟磺胺草醚的制备方法 |
CN112358400A (zh) * | 2020-10-22 | 2021-02-12 | 烟台大学 | 一种微反应器中硝化合成三氟羧草醚的方法 |
CN115403488A (zh) * | 2021-05-27 | 2022-11-29 | 江苏联化科技有限公司 | 氟磺胺草醚的制备方法 |
Family Cites Families (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5248173B2 (es) * | 1973-02-20 | 1977-12-08 | ||
US4031131A (en) * | 1975-09-29 | 1977-06-21 | Rohm And Haas Company | Process for preparing phenoxybenzoic acids |
GB1478428A (en) * | 1975-12-11 | 1977-06-29 | Ishihara Sangyo Kaisha Kk | Substituted diphenylethers and herbicidal composition thereof |
EP0003416B1 (en) * | 1978-01-19 | 1981-08-26 | Imperial Chemical Industries Plc | Diphenyl ether compounds useful as herbicides; methods of using them, processes for preparing them, and herbicidal compositions containing them |
DE3071736D1 (en) * | 1979-06-22 | 1986-10-09 | Rhone Poulenc Agrochimie | Process for preparing 2-nitro-5-(substituted-phenoxy) benzoic acids and salts thereof |
US4400530A (en) * | 1980-06-27 | 1983-08-23 | Ppg Industries, Inc. | Process for preparing substituted diphenyl ethers |
US4594440A (en) * | 1981-07-27 | 1986-06-10 | Rhone:Pulenc, Inc. | Process for recovering and purifying herbicidal phenoxybenzoic acid derivatives |
US4405805A (en) * | 1981-07-27 | 1983-09-20 | Rhone-Poulenc, Inc. | Process for recovering and purifying herbicidal phenoxybenzoic acid derivatives |
US4424393A (en) * | 1981-08-24 | 1984-01-03 | Ppg Industries, Inc. | Process of preparation of substituted diphenyl ethers |
US4743703A (en) * | 1981-10-19 | 1988-05-10 | Rohm And Haas Company | Herbicidal 4-fluoroalkyl-4'-nitrodiphenyl ethers |
US4429146A (en) * | 1982-04-15 | 1984-01-31 | Gaf Corporation | Substituted diphenyl ether herbicides and process for use |
DE3247669A1 (de) * | 1982-12-23 | 1984-06-28 | Basf Ag, 6700 Ludwigshafen | Neue phenylglyoxylsaeurederivate, verfahren zu ihrer herstellung und ihre verwendung zur bekaempfung unerwuenschten pflanzenwuchses |
DE3322817A1 (de) * | 1983-06-24 | 1985-01-10 | Bayer Ag, 5090 Leverkusen | Verfahren zur herstellung von nitrierten diphenylethern |
EP0147798B1 (en) * | 1984-01-03 | 1989-11-23 | General Electric Company | Nitration reactions with acid anhydride promoters |
HU190222B (en) * | 1984-01-17 | 1986-08-28 | Budapesti Vegyimuevek,Hu | Fungicide comprising substituted phenoxy-benzaldehyde as active substance |
HU193194B (en) * | 1984-01-17 | 1987-08-28 | Budapesti Vegyimuevek | Fungicide compositions containing phenoxy-benzaldehyde derivatives as active substances and process for preparing the active substances |
GB8628109D0 (en) * | 1986-11-25 | 1986-12-31 | Ici Plc | Chemical process |
HU200538B (en) * | 1987-06-16 | 1990-07-28 | Budapesti Vegyimuevek | Herbicidal compositons with improves selectivity and process for producing the two active ingredients in one reaction step |
PT101207A (pt) * | 1993-02-26 | 1994-08-31 | Inst Nac De Engenharia E Tecno | Processo para a nitracao de compostos aromaticos em condicoes suaves e nao corrosivas |
DK0668260T3 (da) * | 1994-02-17 | 1999-05-10 | Zeneca Ltd | Fremgangsmåde til phosgenering i nærværelse af acetonitril |
GB9518705D0 (en) * | 1995-09-13 | 1995-11-15 | Zeneca Ltd | Chemical process |
JP4047932B2 (ja) * | 1996-11-01 | 2008-02-13 | シンジェンタ リミテッド | ニトロ化方法 |
-
1997
- 1997-07-28 US US08/901,545 patent/US6028219A/en not_active Expired - Lifetime
-
1998
- 1998-07-07 WO PCT/GB1998/001991 patent/WO1999005087A1/en active IP Right Grant
- 1998-07-07 AU AU83469/98A patent/AU8346998A/en not_active Abandoned
- 1998-07-07 IL IL13315198A patent/IL133151A/en not_active IP Right Cessation
- 1998-07-07 DE DE69808300T patent/DE69808300T2/de not_active Expired - Fee Related
- 1998-07-07 ES ES98933766T patent/ES2180186T3/es not_active Expired - Lifetime
- 1998-07-07 BR BR9811048-9A patent/BR9811048A/pt not_active Application Discontinuation
- 1998-07-07 EP EP98933766A patent/EP1000010B1/en not_active Expired - Lifetime
- 1998-07-07 KR KR1020007000887A patent/KR100571093B1/ko not_active IP Right Cessation
- 1998-07-07 AT AT98933766T patent/ATE224865T1/de not_active IP Right Cessation
- 1998-07-07 HU HU0002525A patent/HUP0002525A3/hu unknown
- 1998-07-07 JP JP2000504089A patent/JP2001510818A/ja active Pending
- 1998-07-07 CN CNB988076101A patent/CN1176899C/zh not_active Expired - Lifetime
- 1998-07-07 DK DK98933766T patent/DK1000010T3/da active
- 1998-07-07 CA CA002291438A patent/CA2291438C/en not_active Expired - Lifetime
- 1998-07-13 TW TW087111326A patent/TW436472B/zh not_active IP Right Cessation
- 1998-07-24 ZA ZA986637A patent/ZA986637B/xx unknown
- 1998-07-27 AR ARP980103687A patent/AR015137A1/es active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
BR9811048A (pt) | 2000-09-05 |
DE69808300T2 (de) | 2003-05-15 |
ZA986637B (en) | 1999-01-28 |
US6028219A (en) | 2000-02-22 |
KR100571093B1 (ko) | 2006-04-13 |
CA2291438C (en) | 2007-10-16 |
AU8346998A (en) | 1999-02-16 |
CN1176899C (zh) | 2004-11-24 |
TW436472B (en) | 2001-05-28 |
HUP0002525A2 (hu) | 2000-11-28 |
AR015137A1 (es) | 2001-04-18 |
IL133151A0 (en) | 2001-03-19 |
ATE224865T1 (de) | 2002-10-15 |
DK1000010T3 (da) | 2003-02-03 |
JP2001510818A (ja) | 2001-08-07 |
WO1999005087A1 (en) | 1999-02-04 |
KR20010022308A (ko) | 2001-03-15 |
CA2291438A1 (en) | 1999-02-04 |
DE69808300D1 (de) | 2002-10-31 |
CN1266422A (zh) | 2000-09-13 |
EP1000010A1 (en) | 2000-05-17 |
HUP0002525A3 (en) | 2001-02-28 |
IL133151A (en) | 2002-11-10 |
EP1000010B1 (en) | 2002-09-25 |
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