GB868484A - Naphthalene derivatives, intermediates in the synthesis of reserpine - Google Patents
Naphthalene derivatives, intermediates in the synthesis of reserpineInfo
- Publication number
- GB868484A GB868484A GB13237/59A GB1323759A GB868484A GB 868484 A GB868484 A GB 868484A GB 13237/59 A GB13237/59 A GB 13237/59A GB 1323759 A GB1323759 A GB 1323759A GB 868484 A GB868484 A GB 868484A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lactone
- carboxylic acid
- epoxy
- bromo
- hydroxy
- 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
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
The invention comprises (a) the dextro rotatory lactone of 8b -hydroxy-2a -bromo-3b , 5b - epoxy- 1,2,3,4,4aa ,5,8, 8aa - octahydronaphthalene-1b -carboxylic acid, (b) the laevorotatory 1,8-lactone of 6a -bromo-7b ,8b -dihydroxy- 2a - methoxy- 3b ,5b - epoxy- 4aa , 8aa -decahydronaphthalene-1b -carboxylic acid and (c) the laevorotatory lactone of the 6a -bromo-8b - hydroxy-2a - methoxy-7-oxo-3b ,5b -epoxy- 4aa , 8aa - decahydronaphthalene- 1b -carboxylic acid, together with processes for their preparation; that of (a) by reaction in an inert solvent of the laevo-rotatory lactone of 5b ,8b - dihydroxy- 1,4,4aa ,5,8, 8aa - hexahydronaphthalene-1b -carboxylic acid with the theoretical quantity of N-bromosuccinimide; (b) by bromination in 6a -position of the dextro-rotatory lactone of 8b -hydroxy-2a -3b , 5b - epoxy- 1,2,3,4,4aa ,5,8, 8aa - octahydronaphthalene-1b -carboxylic acid with N-bromosuccinimide in dilute sulphuric acid, and (c) by oxidation of (b) with chromic acid in acetic acid. Detailed examples are given. Specification 868,483 also is referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR868484X | 1956-12-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB868484A true GB868484A (en) | 1961-05-17 |
Family
ID=9346159
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB13237/59A Expired GB868484A (en) | 1956-12-06 | 1957-10-30 | Naphthalene derivatives, intermediates in the synthesis of reserpine |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB868484A (en) |
-
1957
- 1957-10-30 GB GB13237/59A patent/GB868484A/en not_active Expired
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