Synthesis of a Macrocycle by Application of the Wittig Reaction
✍ Scribed by Griffin, C. E.; Martin, K. R.; Douglas, B. E.
- Book ID
- 118138788
- Publisher
- American Chemical Society
- Year
- 1962
- Tongue
- English
- Weight
- 619 KB
- Volume
- 27
- Category
- Article
- ISSN
- 0022-3263
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Horner-Wittig reaction aldehydes can be converted into their homologous ensmines by with ?&morpholinomethyl diphenylphosphine oxide (2. Among the various methods that are used for the homologation of csrbonyl compounds, Wittig and Horner-Wittlg reactions with a-heterosubstituted ylides occupy a pro
## Abstract The all‐(__E__)‐configured tetrastilbenylmethanes **3a**−**e** and **5a**,**b** can be obtained by fourfold Wittig−Horner reactions. The tetrahedral arrangement of these compounds guarantees independent stilbenoid chromophores with a high chromophore density. Apart from (__E__)/(__Z__)
## Abstract A simple synthesis of a series of bicyclo[m.n.0]‐1‐alkenes (m, n = 3,4,5) from 2‐oxocycloalkanecarboxylates by the intramolecular __Wittig__ reaction is reported (see p. 70–72). The spectral properties (IR., ^1^H‐NMR. and ^13^C‐NMR.) of these annulated trisubstituted olefins are discuss