ChemInform Abstract: Synthesis of 18,18-Difluoro- or 18,18,18-Trifluoro-3-methoxy-12-oxaestra-1,3,5(10)-trienes.
โ Scribed by S. WILMOUTH; H. PELLISSIER; M. SANTELLI
- Publisher
- John Wiley and Sons
- Year
- 2010
- Weight
- 39 KB
- Volume
- 29
- Category
- Article
- ISSN
- 0931-7597
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๐ SIMILAR VOLUMES
Lactone 13 was synthesized by intramolecular radical-mediated oxygenation of the angular Me(18) group of the 17b-configurated sterol 3. Several substrate-controlled methods for stereoselective construction of the hydroxymethyl side chain of 3 were investigated. Helvetica Chimica Acta ยฑ Vol. 81 (199
## Abstract magnified image 5โAzidoโ2โmethoxyโ1,3โxylylโ18โcrownโ5 has been prepared by reacting __p__โtoluenesulfonyl azide with the carbanion generated from the reaction of 5โbromoโ2โmethoxyโ1,3โxylylโ18โcrownโ5 with __n__โbutyl lithium. The asymmetric N~3~ stretch of this product has been obser