ES8605272A3 - Di:chloro-di:piperidino-pyrimido-pyrimidine - Google Patents
Di:chloro-di:piperidino-pyrimido-pyrimidineInfo
- Publication number
- ES8605272A3 ES8605272A3 ES541206A ES541206A ES8605272A3 ES 8605272 A3 ES8605272 A3 ES 8605272A3 ES 541206 A ES541206 A ES 541206A ES 541206 A ES541206 A ES 541206A ES 8605272 A3 ES8605272 A3 ES 8605272A3
- Authority
- ES
- Spain
- Prior art keywords
- pyrimidine
- pyrimido
- chloro
- piperidino
- distn
- 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
Landscapes
- Nitrogen Condensed Heterocyclic Rings (AREA)
Abstract
4,8 -dipiperidino pyrimido (5,4-d) pyrimidine is made by (a) reacting 2,4,6,8-tetrahydroxy pyrimido (5,4-d) pyrimidine with PCl5 in POCl3 to form the tetra-chloro deriv; (b) dissolving the residue in inert organic solvent and conversion of the mixt. with piperidine and caustic soda to an acid medium of pH 1-3 by addn. of HCl or H2SO4; (c) removal of water by distn. concn. of the organic phase, taking up in methanol, boiling and cooling, when the required prod. separates out.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES541206A ES541206A0 (en) | 1973-02-05 | 1985-03-13 | PROCEDURE FOR PREPARING 2,6-DICHLORO-4,8-DIPIPERIDINO-PIRI-MIDO (5,4-D) PIRIMIDINA |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DD16872773A DD105447A1 (en) | 1973-02-05 | 1973-02-05 | |
ES541206A ES541206A0 (en) | 1973-02-05 | 1985-03-13 | PROCEDURE FOR PREPARING 2,6-DICHLORO-4,8-DIPIPERIDINO-PIRI-MIDO (5,4-D) PIRIMIDINA |
Publications (2)
Publication Number | Publication Date |
---|---|
ES8605272A3 true ES8605272A3 (en) | 1986-04-01 |
ES541206A0 ES541206A0 (en) | 1986-04-01 |
Family
ID=25747486
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES541206A Granted ES541206A0 (en) | 1973-02-05 | 1985-03-13 | PROCEDURE FOR PREPARING 2,6-DICHLORO-4,8-DIPIPERIDINO-PIRI-MIDO (5,4-D) PIRIMIDINA |
Country Status (1)
Country | Link |
---|---|
ES (1) | ES541206A0 (en) |
-
1985
- 1985-03-13 ES ES541206A patent/ES541206A0/en active Granted
Also Published As
Publication number | Publication date |
---|---|
ES541206A0 (en) | 1986-04-01 |
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