ES2041214B1 - Procedimiento para la obtencion de derivados de nitrobenzaldehido. - Google Patents

Procedimiento para la obtencion de derivados de nitrobenzaldehido.

Info

Publication number
ES2041214B1
ES2041214B1 ES9200365A ES9200365A ES2041214B1 ES 2041214 B1 ES2041214 B1 ES 2041214B1 ES 9200365 A ES9200365 A ES 9200365A ES 9200365 A ES9200365 A ES 9200365A ES 2041214 B1 ES2041214 B1 ES 2041214B1
Authority
ES
Spain
Prior art keywords
nitro
oxidn
dimerisation
stilbene
benzyl chloride
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 - Fee Related
Application number
ES9200365A
Other languages
English (en)
Other versions
ES2041214A1 (es
Inventor
Olalla Gadea Jesus Santa
Diaz Claro Ignacio Sainz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Union Espanola de Explosivos SA
Original Assignee
Union Espanola de Explosivos SA
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 Union Espanola de Explosivos SA filed Critical Union Espanola de Explosivos SA
Priority to ES9200365A priority Critical patent/ES2041214B1/es
Publication of ES2041214A1 publication Critical patent/ES2041214A1/es
Application granted granted Critical
Publication of ES2041214B1 publication Critical patent/ES2041214B1/es
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

PROCEDIMIENTO PARA LA OBTENCION DE DERIVADOS DE NITROBENZALDEHIDO (I) DONDE EL GRUPO NITRO PUEDE ESTAR EN CUALQUIER POSICION, DEL ANILLO Y R PUEDE SER H, ALQUILO CSI1-4 SC, ALCOXI CSI1-4 SC, CIANO, HALOGENO. EL PROCEDIMIENTO COMPRENDE (A) LA FORMACION DE UN DINITROESTILBENO (III) POR DESHIDROHALOGENACION/DIMERIZACION DE UN CLORURO DE NITROBENCILO (II) EN PRESENCIA DE UNA BASE Y EN UN MEDIO ALCOHOLICO Y (B) LA OXIDACION DEL DINITROESTILBENO (III), PARA DAR LOS COMPUESTOS (I). LOS CLORUROS DE NITROBENCILO (II) PUEDEN OBTENERSE POR CLORACION DE LOS CORRESPONDIENTES DERIVADOS DE NITROTOLUENOS (IV), POR LO QUE ESTOS COMPUESTOS (IV) PUEDEN SER UTILIZADOS EN LA SINTESIS DE LOS COMPUESTOS (I). EL O-NITROBENZALDEHIDO PUEDE SER UTILIZADO COMO INTERMEDIO DE SINTESIS DE DERIVADOS DE BENZODIAZEPINA Y DE 4-(2''-NITROFENIL)-1,4-DIHIDROPIRIDINAS DE INTERES FARMACEUTICO POR SU UTILIDAD COMO DILATADOR CORONARIO E HIPOTENSOR.
ES9200365A 1992-02-20 1992-02-20 Procedimiento para la obtencion de derivados de nitrobenzaldehido. Expired - Fee Related ES2041214B1 (es)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES9200365A ES2041214B1 (es) 1992-02-20 1992-02-20 Procedimiento para la obtencion de derivados de nitrobenzaldehido.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES9200365A ES2041214B1 (es) 1992-02-20 1992-02-20 Procedimiento para la obtencion de derivados de nitrobenzaldehido.

Publications (2)

Publication Number Publication Date
ES2041214A1 ES2041214A1 (es) 1993-11-01
ES2041214B1 true ES2041214B1 (es) 1994-06-16

Family

ID=8276125

Family Applications (1)

Application Number Title Priority Date Filing Date
ES9200365A Expired - Fee Related ES2041214B1 (es) 1992-02-20 1992-02-20 Procedimiento para la obtencion de derivados de nitrobenzaldehido.

Country Status (1)

Country Link
ES (1) ES2041214B1 (es)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105859562A (zh) * 2016-04-14 2016-08-17 江苏新淮河医药科技有限公司 邻硝基苯甲醛的制备方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102627565A (zh) * 2012-03-27 2012-08-08 江苏同禾药业有限公司 一种2,2’-二硝基二苯乙烯的合成方法
CN102675119A (zh) * 2012-05-02 2012-09-19 常州大学 一种制备2,2'-二硝基二苯乙烯的方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2358376A1 (fr) * 1976-07-12 1978-02-10 Ciba Geigy Ag Procede de preparation de benzaldehydes ortho-substitues
US4213920A (en) * 1977-07-06 1980-07-22 Ciba-Geigy Corporation Process for the production of substituted benzaldehydes
CH630050A5 (de) * 1977-09-30 1982-05-28 Ciba Geigy Ag Verfahren zur herstellung substituierter benzal- und benzylbromide.
US4199532A (en) * 1978-12-05 1980-04-22 The United States Of America As Represented By The Secretary Of The Navy Method for the production of hexanitrostilbene

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105859562A (zh) * 2016-04-14 2016-08-17 江苏新淮河医药科技有限公司 邻硝基苯甲醛的制备方法

Also Published As

Publication number Publication date
ES2041214A1 (es) 1993-11-01

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Legal Events

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Effective date: 20180806