An efficient strategy for the iterative synthesis of a trans-fused polytetrahydropyran ring system via SmI2-induced reductive intramolecular cyclization
โ Scribed by Nobuyuki Hori; Hiroko Matsukura; Goh Matsuo; Tadashi Nakata
- Publisher
- Elsevier Science
- Year
- 1999
- Tongue
- French
- Weight
- 259 KB
- Volume
- 40
- Category
- Article
- ISSN
- 0040-4039
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โฆ Synopsis
A highly efficient strategy for the iterative synthesis of a trans-fused polytetrahydropyran ring system was developed. The new iterative method involves SmI2-induced reductive intramolecular cyclization of an aldehyde and a [~-alkoxy acrylate as the key step, producing a 2,3-trans-tetrahydropyran ring.
๐ SIMILAR VOLUMES
An efficient convergent strategy for the construction of a trans-fused 6-6-6-6-membered tetracyclic ether ring system was developed. The key steps involve coupling of two cyclic ethers by esterification, SmI 2 -promoted intramolecular reductive cyclization of iodo ester to hemiacetal, dehydration to