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The synthesis of polyene isoprenoids by the horner variant of the wittig reaction

โœ Scribed by John M. Clough; Gerald Pattenden


Publisher
Elsevier Science
Year
1978
Tongue
French
Weight
219 KB
Volume
19
Category
Article
ISSN
0040-4039

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โœฆ Synopsis


The celebrated Wittig reaction constitutes the most general and flexible approach towards the synthesis of all types of substituted olefins. Furthermore,by judicious choice of reaction conditions, the


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## Abstract The allโ€(__E__)โ€configured tetrastilbenylmethanes **3a**โˆ’**e** and **5a**,**b** can be obtained by fourfold Wittigโˆ’Horner reactions. The tetrahedral arrangement of these compounds guarantees independent stilbenoid chromophores with a high chromophore density. Apart from (__E__)/(__Z__)