“Traceless” solid-phase synthesis of furans via 1,3-dipolar cycloaddition reactions of isomünchnones
✍ Scribed by Madhusudhan R. Gowravaram; Mark A. Gallop
- Publisher
- Elsevier Science
- Year
- 1997
- Tongue
- French
- Weight
- 268 KB
- Volume
- 38
- Category
- Article
- ISSN
- 0040-4039
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✦ Synopsis
The generation and cycloaddition reactions of polymer-supported mesoionic isomtinchnones derived from a-diazocarbonyl intermediates is described in this report. This chemistry provides a method for preparing combinatorial libraries of functionalized furans and features cycloreversion as a new synthetic strategy for "traceless" synthesis of small organic molecules.
📜 SIMILAR VOLUMES
Thioisomtinchnone dipoles were generated by the reaction of bromoalkenoyl chlorides with thioamides. The intramolecular dipolar-cycloaddition reaction was used for a short synthesis of the yohimbanoid alkaloid (+)-alloyohimbane.
## Abstract magnified image A simple diastereoselective route to nicotine derivatives is presented. The one‐pot three component 1,3‐dipolar cycloaddition reaction of the Knöevenagel adducts of a number of aromatic aldehydes and malononitrile with an azomethine ylide derived __in situ__ from pyridin