The first total synthesis of goniothalesdiol
✍ Scribed by Matej Babjak; Peter Kapitán; Tibor Gracza
- Book ID
- 104251909
- Publisher
- Elsevier Science
- Year
- 2002
- Tongue
- French
- Weight
- 81 KB
- Volume
- 43
- Category
- Article
- ISSN
- 0040-4039
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✦ Synopsis
The first total synthesis of goniothalesdiol, a dihydroxylated tetrahydrofuran isolated from Goniothalamus borneensis (Annonaceae), and its 7-epimer is described starting with D-mannitol. The key step of these syntheses is palladium(II)-catalyzed oxycarbonylation of unsaturated triols with D-lyxo and D-xylo configuration, respectively, which allowed efficient construction of the tetrahydrofuran ring with excellent threo-selectivity at the newly formed stereogenic centre.
📜 SIMILAR VOLUMES
The first total synthesis of Goniothalesdiol A, isolated from the stems of Goniothalamus amuyon (Annonaceae) is reported. The C2 stereocentre and C3/C4 syn diol were created by a Sharpless kinetic resolution followed by acetonide formation. The tetrahydropyran ring was formed and the C6 stereocentre
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## Abstract The stereocontrolled synthesis of goniothalesdiol A, a dihydroxylated tetrahydropyran compound, has been accomplished using D‐ribose as chiral precursor. The key steps involved are aryl __Grignard__ reaction, stereoselective alkoxy‐directed keto reduction, and intramolecular oxy‐__Micha