ES227478A2 - PROCEDURE FOR THE MANUFACTURE OF 4,4-DIOXY-DIPHENYL-FIRIDYL-METHANES. - Google Patents
PROCEDURE FOR THE MANUFACTURE OF 4,4-DIOXY-DIPHENYL-FIRIDYL-METHANES.Info
- Publication number
- ES227478A2 ES227478A2 ES0227478A ES227478A ES227478A2 ES 227478 A2 ES227478 A2 ES 227478A2 ES 0227478 A ES0227478 A ES 0227478A ES 227478 A ES227478 A ES 227478A ES 227478 A2 ES227478 A2 ES 227478A2
- Authority
- ES
- Spain
- Prior art keywords
- substituted
- ring
- aralkyl
- methanes
- dioxy
- 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
Links
- 238000000034 method Methods 0.000 title abstract 2
- 238000004519 manufacturing process Methods 0.000 title 1
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical group C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 abstract 4
- 125000002887 hydroxy group Chemical group [H]O* 0.000 abstract 3
- 125000002877 alkyl aryl group Chemical group 0.000 abstract 2
- 125000003710 aryl alkyl group Chemical group 0.000 abstract 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 abstract 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical group [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract 1
- 125000002252 acyl group Chemical group 0.000 abstract 1
- 125000004423 acyloxy group Chemical group 0.000 abstract 1
- 125000000217 alkyl group Chemical group 0.000 abstract 1
- 125000003118 aryl group Chemical group 0.000 abstract 1
- 238000009833 condensation Methods 0.000 abstract 1
- 230000005494 condensation Effects 0.000 abstract 1
- 239000012024 dehydrating agents Substances 0.000 abstract 1
- 229910052739 hydrogen Inorganic materials 0.000 abstract 1
- 239000001257 hydrogen Substances 0.000 abstract 1
- 150000002989 phenols Chemical class 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 abstract 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 abstract 1
- 125000001424 substituent group Chemical group 0.000 abstract 1
Landscapes
- Pyridine Compounds (AREA)
Abstract
Mejoras introducidas en el objeto de la patente principal nº 208.304 o sea en un procedimiento para la preparación de dioxi-difenil-piridil-metanos de la fórmula general **(Ver fórmula)** en donde R y R1 representan hidrógeno; restos alquilo o acilo y P y r el anillo de piridina siendo R y R1 iguales o desiguales y pudiendo contener además tanto el anillo de piridina como el anillo fenólico grupos alquilo arilo o aralquilo como sustituyentes caracterizadas porque oxifenil- piridil-carbinoles o derivados O-alquilados u O-acilados de estos carbinoles (cuyos grupos hidroxilos alcoxi o aciloxi fenólicos pueden estar en posición 2 3 o 4 y que pueden estar sustituidos en el anillo piridínico y fenólico con restos alquilos arilo o aralquilo se condensan en presencia de un agente deshidratante con fenoles que no estén sustituidos en la posición p- con relación al grupo hidroxilo pero que pueden estar sustituidos en las restantes posiciones con restos alquilo arilo o aralquilo y si se diera el caso los grupos hidroxilo libres en los productos de partida o productos finales se acilan o alquilan en la forma conocida durante o después de la condensación.Improvements introduced in the object of main patent No. 208,304, that is, in a process for the preparation of dioxy-diphenyl-pyridyl-methanes of the general formula ** (See formula) ** wherein R and R1 represent hydrogen; alkyl or acyl moieties and P and r the pyridine ring with R and R1 being the same or unequal and also being able to contain both the pyridine ring and the phenolic ring alkyl aryl or aralkyl groups as substituents characterized by oxyphenyl-pyridyl-carbinols or O-alkylated derivatives or O-acylated of these carbinols (whose phenolic alkoxy or acyloxy hydroxyl groups can be in position 2, 3 or 4 and that can be substituted in the pyridine and phenolic ring with aryl or aralkyl residues are condensed in the presence of a dehydrating agent with phenols which are not substituted in the p- position with respect to the hydroxyl group but which can be substituted in the remaining positions with alkyl aryl or aralkyl radicals and, if the case arises, the free hydroxyl groups in the starting products or final products are acylated they rent in the known way during or after condensation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES0227478A ES227478A2 (en) | 1956-03-22 | 1956-03-22 | PROCEDURE FOR THE MANUFACTURE OF 4,4-DIOXY-DIPHENYL-FIRIDYL-METHANES. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES0227478A ES227478A2 (en) | 1956-03-22 | 1956-03-22 | PROCEDURE FOR THE MANUFACTURE OF 4,4-DIOXY-DIPHENYL-FIRIDYL-METHANES. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES227478A2 true ES227478A2 (en) | 1956-05-16 |
Family
ID=38528287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES0227478A Expired ES227478A2 (en) | 1956-03-22 | 1956-03-22 | PROCEDURE FOR THE MANUFACTURE OF 4,4-DIOXY-DIPHENYL-FIRIDYL-METHANES. |
Country Status (1)
| Country | Link |
|---|---|
| ES (1) | ES227478A2 (en) |
-
1956
- 1956-03-22 ES ES0227478A patent/ES227478A2/en not_active Expired
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