40098-24-6Relevant articles and documents
Synthesis of (±)-15-thia-15-deoxy-PGE1 methyl ester
Holland,Ratemi,Contreras
, p. 1 - 5 (2007/10/02)
The 15-thia-15-deoxy analogue of prostaglandin E1 methyl ester has been prepared by the zirconocene chloride mediated conjugate addition of an n-pentyl ethynyl sulfide derived anion to an appropriately substituted cyclopentenone. Similar methodology has also been used to prepare other 3-(3'-thia-1'-octenyl)-cyclopentanones.
Cyclopentanoids from Phenol. Part 5. Terminally Functionalised 2- and 3-Alkyl-4-hydroxycyclopent-2-enones. A Versatile Approach to Prostanoids
Gill, Melvyn,Rickards, Rodney W.
, p. 599 - 606 (2007/10/02)
Terminally functionalised 3-alkyl-4-hydroxycyclopent-2-enones are prepared by conjugate addition-elimination reactions of magnesiocuprate reagents with ethers of 3-chloro-4-hydroxycyclopent-2-enone.The side-chain functionality can be modified either selectivity, or simultaneously with modification of the nucleus.Stereospecific trasposition of the ring-oxygen functions converts these compounds into terminally functionalised 2-alkyl-4-hydroxycyclopent-2-enones which are important intermediates in prostanoid synthesis.Thus the 2-substituted cyclopentenone (2) is prepared in ca. 60percent yield from the 3-chlorocyclopentenone (7), itself available in four steps from phenol.