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Synthese de l'acide cis chrysanthemique

✍ Scribed by Jean d'Angelo; Gilbert Revial

Book ID
104217305
Publisher
Elsevier Science
Year
1983
Tongue
French
Weight
195 KB
Volume
24
Category
Article
ISSN
0040-4039

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✦ Synopsis

Swnmary : A simple, efficient approach of racer& cis chrysanthemic acid J an intermediate in the synthesis of the exceptional1.y potent insecticide DeZtamethrine L, is described. The key-intermediate of this approach was the 2,2,5,5-tetramethy'LcycZohexane l,&dione 5 which has been related to the Zactone 2, a precursor of 2, in _ four steps 170 % overall yield).

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Synthese de l'acide nervonique 14C-24 (a
Synthese de l'acide nervonique 14C-24 (acide cis-tétracosène-15 oïque 14C-24)
✍ T. Moriya; M. Pabiot; L. Pichat 📂 Article 📅 1981 🏛 John Wiley and Sons 🌐 French ⚖ 348 KB

## Abstract Methyl iodide‐^14^C was condensed with 2‐(1‐lithio‐hept‐1‐yn‐6‐yl) 1,3‐dioxolanne **4** in presence of HMPT and benzene to give 2‐(oct‐2‐yn‐8‐yl‐1‐^14^C) 1,3‐dioxolanne **5**. Catalytic reduction of **5**, followed by acid hydrolysis led to pelargonic aldehyde 9‐^14^C 7. Condensation o