IT1051942B - 4-(Protected hydroxy)-2-cyclopentenone derivs, prepn. - by e.g. oxidising 4-(protected hydroxy)-2-cyclopentenol cpds. - Google Patents
4-(Protected hydroxy)-2-cyclopentenone derivs, prepn. - by e.g. oxidising 4-(protected hydroxy)-2-cyclopentenol cpds.Info
- Publication number
- IT1051942B IT1051942B IT3074575A IT3074575A IT1051942B IT 1051942 B IT1051942 B IT 1051942B IT 3074575 A IT3074575 A IT 3074575A IT 3074575 A IT3074575 A IT 3074575A IT 1051942 B IT1051942 B IT 1051942B
- Authority
- IT
- Italy
- Prior art keywords
- protected hydroxy
- cpds
- cyclopentenone
- oxidising
- formula
- Prior art date
Links
Abstract
4-Protected hydrox-2-cyclopentenones of formula (II): (where R is an eliminable-protecting gp. for the alcoholic OH gp.), e.g. 4-acetoxy-2-cyclopentenone, are prepd. by oxidising cpds. of formula (I) (R)- or (S)-trans cpds. of formula (I) are prepd. by reacting an (R)- or (S)-trans-diol of formula (III) with a suitable protecting gp.-forming agent, the diol being kept in stoichiometric excess in the reaction system. (II) are useful as intermediates for pharmaceuticals (esp. prostaglandins), agricultural chemicals and perfumes.
Applications Claiming Priority (10)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP49149014A JPS5176238A (en) | 1974-12-27 | 1974-12-27 | 44 hidorokishishikuropento 22 en 11 onjudotainoseizoho |
| JP14901374A JPS5176243A (en) | 1974-12-27 | 1974-12-27 | 22 shikuropenten 1*44 jioorujudotainoseizoho |
| JP2948675A JPS51106789A (en) | 1975-03-13 | 1975-03-13 | 44 haidorokishishikuropento 22 en 11 onnoseizoho |
| JP4579175A JPS51122042A (en) | 1975-04-17 | 1975-04-17 | Process for preparation of 3,5-hydroxycyclopento-1-ene derivatives |
| JP4579375A JPS51121595A (en) | 1975-04-17 | 1975-04-17 | Method for preparing cyclopentenol derivatives |
| JP4579275A JPS51122043A (en) | 1975-04-17 | 1975-04-17 | Process for preparation of 3-hydroxy-5- cycloxycyclopento-1-ene deriva tives |
| JP50047402A JPS51125353A (en) | 1975-04-21 | 1975-04-21 | Process for preparing esters of cyclopentene-3,5-diol |
| JP4740175A JPS51125357A (en) | 1975-04-21 | 1975-04-21 | Process for prepating 4-hydroxycyclopent-2-ene-1-one derivatives |
| JP50047400A JPS51125352A (en) | 1975-04-21 | 1975-04-21 | Process for preparing 3-methoxy-alpha trifluoromethylphenyl- acetoxycyclope ntene-5-olderivatives |
| JP4739975A JPS51125356A (en) | 1975-04-21 | 1975-04-21 | Process for preparing 4-hydroxycyclopent -2-ene-1-one |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IT1051942B true IT1051942B (en) | 1981-05-20 |
Family
ID=27579820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT3074575A IT1051942B (en) | 1974-12-27 | 1975-12-23 | 4-(Protected hydroxy)-2-cyclopentenone derivs, prepn. - by e.g. oxidising 4-(protected hydroxy)-2-cyclopentenol cpds. |
Country Status (1)
| Country | Link |
|---|---|
| IT (1) | IT1051942B (en) |
-
1975
- 1975-12-23 IT IT3074575A patent/IT1051942B/en active
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