## Abstract γ‐Cyhalothrin (**1a**), (__S__)‐cyano(3‐phenoxyphenyl)methyl (1__R__,3__R__)‐3‐[(1__Z__)‐2‐chloro‐3,3,3‐trifluoro‐1‐propenyl]‐2,2‐dimethylcyclopropanecarboxylate, is a single‐isomer, synthetic pyrethroid insecticide marketed by Pytech Chemicals GmbH, a joint venture between Dow AgroScie
Practical and stereocontrolled syntheses of both (1R★,3S★)- and (1R★,3R★)-3-(2-chloro-3,3,3-trifluoro-1-propenyl)-2,2-dimethylcyclopropanecarboxylates
✍ Scribed by Makoto Fujita; Tamejiro Hiyama; Kiyosi Kondo
- Publisher
- Elsevier Science
- Year
- 1986
- Tongue
- French
- Weight
- 214 KB
- Volume
- 27
- Category
- Article
- ISSN
- 0040-4039
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The litle anlinomethyl (5) and amino (6) alcohols, which are of interest as intermediates in the synthesis of carbocyclic analogues of nucleosides, were prepared from (+)-camphoric acid via methyl (1S,3R)-3-carbamoyl-2.3.3-trimelhylcyclopel~tane earboxylale (8). Direct reduction of S gave 5 in 26% y
## Abstract 3‐Phenoxybenzyl [1R,cis]‐3–2(2,2‐dichlorovinyl)‐2,2‐dimethyl‐cyclopropanecarboxylate (I) and its [1R,trans]‐isomer (II) were labelled with carbon‐14 at C‐2 position of the dichlorovinyl side chain for metabolic studies. The stereospecific syntheses were achieved according to the reactio