Pyrethrin II - Misplaced Pages

Pyrethrin II
Names


Preferred IUPAC name (1S)-2-Methyl-4-oxo-3-cyclopent-2-en-1-yl (1R,3R)-3--2,2-dimethylcyclopropane-1-carboxylate
Identifiers
CAS Number	121-29-9
3D model (JSmol)	Interactive image
ChemSpider	4478783
ECHA InfoCard	100.004.057
EC Number	204-462-6
PubChem CID	5320807
UNII	5N9245585U
CompTox Dashboard (EPA)	DTXSID2042353
InChI InChI=1S/C22H28O5/c1-7-8-9-10-15-14(3)18(12-17(15)23)27-21(25)19-16(22(19,4)5)11-13(2)20(24)26-6/h7-9,11,16,18-19H,1,10,12H2,2-6H3/b9-8+,13-11-/t16-,18?,19?/m0/s1Key: VJFUPGQZSXIULQ-CDPVRPLUSA-N
SMILES CC1=C(C(=O)CC1OC(=O)C2(C2(C)C)/C=C(/C)\C(=O)OC)C/C=C/C=C
Properties
Chemical formula	C₂₂H₂₈O₅
Molar mass	372.45472
Hazards
GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H302, H312, H332, H410
Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa). Y verify (what is ?) Infobox references

Chemical compound

Pyrethrin II is an organic compound that is a potent insecticide. It is one of the two pyrethrins, the other being pyrethrin I. Thousands of tons this mixture are produced annually from chrysanthemum plants, which are cultivated in warm climates.

Structure and related compounds

Whereas pyrethrin I is a derivative of (+)-trans-chrysanthemic acid, in pyrethrin II one methyl group is oxidized to a carboxymethyl group, the resulting core being called pyrethric acid. Knowledge of their chemical structures opened the way for the production of synthetic analogues, which are called pyrethroids. In terms of their biosynthesis, pyrethrins are classified as terpenoids, being derived from dimethylallyl pyrophosphate.

References

Robert L. Metcalf “Insect Control” in Ullmann’s Encyclopedia of Industrial Chemistry” Wiley-VCH, Weinheim, 2002. doi:10.1002/14356007.a14_263
Susan B. Rivera, Bradley D. Swedlund, Gretchen J. King, Russell N. Bell, Charles E. Hussey, Jr., Donna M. Shattuck-Eidens, Wislawa M. Wrobel, Galen D. Peiser, and C. Dale Poulter "Chrysanthemyl diphosphate synthase: Isolation of the gene and characterization of the recombinant non-head-to-tail monoterpene synthase from Chrysanthemum cinerariaefolium" Proceedings of the National Academy of Sciences 2001, volume 98, p 4373-4378. doi:10.1073/pnas.071543598

v t e Pest control: Insecticides
Carbamates	Aldicarb Aminocarb Bendiocarb Butocarboxim Carbaryl Carbofuran Carbosulfan m-Cumenyl methylcarbamate Ethienocarb Fenobucarb Isoprocarb Methomyl Metolcarb Oxamyl Promecarb Propoxur
Inorganic compounds	Aluminium phosphide Boric acid Chromated copper arsenate Copper(II) arsenate Copper(I) cyanide Cryolite Diatomaceous earth Lead hydrogen arsenate Paris Green Scheele's Green
Insect growth regulators	Benzoylureas (Bistrifluron, Diflubenzuron, Flufenoxuron, Lufenuron, Noviflumuron) Hydroprene Methoprene Pyriproxyfen
Neonicotinoids	Acetamiprid Clothianidin Dinotefuran Imidacloprid Imidaclothiz Nitenpyram Nithiazine Paichongding Thiacloprid Thiamethoxam
Organochlorides	Aldrin Beta-HCH Carbon tetrachloride Chlordane Cyclodiene 1,2-DCB 1,4-DCB 1,1-DCE 1,2-DCE DDD DDE DDT DFDT Dicofol Dieldrin Endosulfan Endrin Heptachlor Kepone Lindane Methoxychlor Mirex Tetradifon Toxaphene
Organophosphorus	Acephate Azamethiphos Azinphos-methyl Bensulide Chlorethoxyfos Chlorfenvinphos Chlorpyrifos Chlorpyrifos-methyl Coumaphos Demeton-S-methyl Diazinon Dichlorvos Dicrotophos Diisopropyl fluorophosphate Dimefox Dimethoate Dioxathion Disulfoton Ethion Ethoprop Fenamiphos Fenitrothion Fenthion Fosthiazate Isoxathion Malathion Methamidophos Methidathion Mevinphos Mipafox Monocrotophos Naled Omethoate Oxydemeton-methyl Parathion Parathion-methyl Phenthoate Phorate Phosalone Phosmet Phoxim Pirimiphos-methyl Quinalphos R-16661 Schradan Temefos Tebupirimfos Terbufos Tetrachlorvinphos Tribufos Trichlorfon
Pyrethroids	Acrinathrin Allethrins Bifenthrin Bioallethrin Cyfluthrin Cyhalothrin Cypermethrin Cyphenothrin Deltamethrin Empenthrin Esfenvalerate Etofenprox Fenpropathrin Fenvalerate Flumethrin Fluvalinate Imiprothrin Metofluthrin Permethrin Phenothrin Prallethrin Pyrethrin (I, II; chrysanthemic acid) Pyrethrum Resmethrin Silafluofen Tefluthrin Tetramethrin Tralomethrin Transfluthrin
Diamides	Chlorantraniliprole Cyantraniliprole Flubendiamide
Other chemicals	Afoxolaner Amitraz Azadirachtin Bensultap Buprofezin Cartap Chlordimeform Chlorfenapyr Cyromazine Fenazaquin Fenoxycarb Fipronil Fluralaner Hydramethylnon Indoxacarb Limonene Lotilaner (+milbemycin oxime) Pyridaben Pyriprole Sarolaner Adjuvants (Piperonyl butoxide, Sesamex) Spinosad Sulfluramid Tebufenozide Tebufenpyrad Veracevine Xanthone Metaflumizone Ryanodine Ryanodol
Metabolites	Oxon Malaoxon Paraoxon TCPy
Biopesticides	Bacillus thuringiensis Baculovirus Beauveria bassiana Beauveria brongniartii Isaria fumosorosea Metarhizium acridum Metarhizium anisopliae Nomuraea rileyi Lecanicillium lecanii Paenibacillus popilliae Purpureocillium lilacinum Spinosad

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