The stereochemistry of some SE2′ reactions of allyl- and allenylsilanes
✍ Scribed by Ian Fleming; Nicholas K Terrett
- Publisher
- Elsevier Science
- Year
- 1983
- Tongue
- French
- Weight
- 198 KB
- Volume
- 24
- Category
- Article
- ISSN
- 0040-4039
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📜 SIMILAR VOLUMES
Although reactions between (-)ephedrine E2-(S)-methylamino-l-(R)-phenylpropan-l-017 and RPOC12 (R = Cl, alkyl, aryl, alkoxy, aryloxy) can in principle afford pairs of 1,3,2-oxazaphospholanes eyimeric at phosphorus, most reports describe only one product from highly stereoselective reactions.
## Abstract magnified image Reaction of __visnaginone__ **1** with allyl bromide gave __O__‐allyl __visnaginone__ **2** which underwent Claisen rearrangement to yield 7‐allylbenzofuran derivative **3**. Reaction of **3** with different aromatic aldehydes gave the corresponding 5‐cinnamoylbenzofura