Some observations on the preparation of 2-hydroxy-steroid 4-En-3-ones
✍ Scribed by Burnett, Raymond D.; Kirk, David N.
- Book ID
- 121231959
- Publisher
- Royal Society of Chemistry
- Year
- 1973
- Weight
- 736 KB
- Category
- Article
- ISSN
- 1472-7781
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📜 SIMILAR VOLUMES
## Abstract Dehydrochlorination of chlorinated 5‐hydroxy‐2‐oxabicyclo[3.2.0]heptan‐4‐ones, 3a‐c, which were obtained from the photo[2+2]cycloadditions between 4‐hydroxy‐3(2__H__)‐furanone 1 and chloroethylenes, with triethylamine gave 2‐ethenyl‐3(2__H__)‐furanones 4a,b or 2‐(2‐cyanoethyl)‐3(2__H__)
Controlled potential electroreduction of three pyridazin-3-ones has been investigated in protic medium. Whatever the acidity, the first reduction always takes place at the 4,5-double bond. In an ammoniacal buffer, further reduction leads to the tetrahydro derivative. In acidic medium, reduction of N