Products

Refine

Country

Business Type

Certificate

Display

Dayang Chem (Hangzhou) Co.,Ltd.

DayangChem exported this product to many countries and regions at best price. If you are looking for the material's manufacturer or supplier in China, DayangChem is your best choice. Pls contact with us freely for getting detailed product spe

2-methyl-4-oxo-3-(penta-2,4-dienyl)cyclopent-2-enyl [1R-[1alpha[S*(Z)],3beta]]-chrysanthemate

Cas:121-21-1

Min.Order:1 Kilogram

FOB Price: $3.0

Type:Lab/Research institutions

inquiry

Ality Chemical Corporation

The above product is Ality Chemical's strong item with best price, good quality and fast supply. Ality Chemical has been focusing on the research and production of this field for over 14 years. At the same time, we are always committed to providi

Factory Supply Pyrethrin

Cas:121-21-1

Min.Order:1

Negotiable

Type:Other

inquiry

Shanghai Upbio Tech Co.,Ltd

1.In No Less 10 years exporting experience. you can 100% received goods 2.Lower Price with higher quality 3,Free sample 4,We are sincerely responsible for the "product quality" and "After Service" Upbio is Specializ

Shandong Hanjiang Chemical Co., Ltd.

Hello, dear friend! I'm Hansen and Allen from China. Welcome to my lookchem mall! The following is a brief introduction of our company's products and services. If you are interested in our products, please contact us by emai

Hebei Nengqian Chemical Import and Export Co., LTD

Our Advantage Rich Experience Our products are sold all over Europe,North&South America, Sino-East, Asia and pacific area as well as Africa,we establish long term. Quality service Company cooperates with research institutes. We strictly con

PYRETHRIN 1 CAS:121-21-1

Cas:121-21-1

Min.Order:1 Kilogram

FOB Price: $1.0 / 10.0

Type:Trading Company

inquiry

Henan Wentao Chemical Product Co., Ltd.

Henan Wentao Chemical Product Co.,Ltd is Located in Zhengzhou High-tech Development Zone with import and export license, We passed ISO 9001:2008 as well, Henan Wentao has developed more than 1000 compounds, which are widely used in the fields of prod

Rely Chemicals Ltd.

1.Professional manufacturing 2.FAO Standards 3.Delivery in time 4.Quick response 5.Certified good supplier Appearance:powder or crystal Storage:Ventilated, dry at low temperature Package:50g,100g,200g,250g,400g,500g,1kg,10kg bag ,20kg, 25k

Pyrethrins are natural insecticides produced by certain species of the chrysanthemum plant for

Cas:121-21-1

Min.Order:500 Kilogram

Negotiable

Type:Trading Company

inquiry

Hangzhou Keyingchem Co.,Ltd

Hangzhou KeyingChem Co., Ltd. exported this product to many countries and regions at best price. If you are looking for the material’s manufacturer or supplier in China, KeyingChem is your best choice. Pls contact with us freely for getting det

PYRETHRIN 1

Cas:121-21-1

Min.Order:0 Metric Ton

Negotiable

Type:Lab/Research institutions

inquiry

Xiamen Jenny Chemical Technology Co., Ltd.

GMP standard, high purity, competitive price, in stock 1. Quick Response: within 6 hours after receiving your email. 2. Quality Guarantee: All products are strictly tested by our QC, confirmed by QA, and approved by a third-party lab in China, USA,

PYRETHRIN1

Cas:121-21-1

Min.Order:1 Milligram

Negotiable

Type:Trading Company

inquiry

TAIZHOU ZHENYU BIOTECHNOLOGY CO., LTD

Zhenyu biotech exported this product to many countries and regions at best price. if you are looking for the material's manufacturer or supplier in china, zhenyu biotech is your best choice. pls contact with us freely for getting detailed

PYRETHRIN 1

Cas:121-21-1

Min.Order:1 Kilogram

FOB Price: $2.0

Type:Lab/Research institutions

inquiry

KAISA GROUP INC

1.Applied in food field.it can improve the immune system and prolong life. 2.Appliedin cosmetic field.it can improve the skin care. 3.Applied in pharmaceutical field.it can treat various dieases. 4.Our product quality assurance will make our customer

121-21-1 CAS NO.121-21-1

Cas:121-21-1

Min.Order:1 Metric Ton

FOB Price: $7.0 / 8.0

Type:Trading Company

inquiry

Sinoway Industrial Co., Ltd.

Why is SINOWAY:1) Specialized in pharmaceutical and healthcare industrial since 19872) ISO 9001:2015 & SGS audited supplier . 3) Accept various payment terms : T.T 30-60 days.4) We have warehouse in USA with quickly shipment .5) We can do different t

99% up by HPLC Pyrethrin 121-21-1

Cas:121-21-1

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Aecochem Corp.

Our clients, like BASF,CHEMO,Brenntag,ASR,Evonik,Merck and etc.Appearance:COA Storage:in stock Application:MSDS/TDS

Pyrethrin

Cas:121-21-1

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

Xi`an Eastling Biotech Co., Ltd.

high purity lowest priceAppearance:solid or liquid Storage:in sealed air resistant place Package:Foil bag; Drum; Plastic bottle Application:Pharma;Industry;Agricultural Transportation:by sea or air Port:Beijing or Guangzhou

PYRETHRIN 1

Cas:121-21-1

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Antimex Chemical Limied

Ansciep Chemical is a professional enterprise manufacturing and distributing fine chemicals and speciality chemicals. We have been dedicated to heterocycle compounds and phenyl rings for tens of years. This is our mature product for export. Our quali

Henan Tianfu Chemical Co., Ltd.

High Quality Application:Organic Chemical

PYRETHRIN 1

Cas:121-21-1

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Changchun Artel lmport and Export trade company

Supply top quality products with a reasonable price Application:api

121-21-1

Cas:121-21-1

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Henan Kanbei Chemical Co.,LTD

factory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin

PYRETHRIN 1

Cas:121-21-1

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Shanghai Chinqesen Biotechnology Co., Ltd.

Good Quality Package:1kg/bag Application:Medical or chemical Transportation:Air/Train/Sea Port:Shenzhen

121-21-1

Cas:121-21-1

Min.Order:0

Negotiable

Type:Trading Company

inquiry

shanghai Tauto Biotech Co., Ltd

Appearance:powder or crystal Storage:-20degree Package:10mg,20mg,1g or on request Application:For research use only, like HPLC, Cell Culture, Animal Experiment, High Throughout Screening, etc.. Transportation:room temperature

ZHEJIANG JIUZHOU CHEM CO.,LTD

factory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin

PYRETHRIN 1

Cas:121-21-1

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Changzhou Extraordinary Pharmatech co.,LTD

Changzhou Extraordinary Pharmatech co., LTD. As a leading chemical manufacturer and supplier in China.DAS authentication is passed.We can provide the popular precursor chemicals, we have our own strong R & D team, have our own laboratories and fa

Pyrethrin 1

Cas:121-21-1

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Salus Nutra Inc

Xi’an Salus Nutra Inc Established in 2015 and located in Hi-Tech industrial Zone in xi’an city, which is the most advanced area in northwest china . Salus Nutra is a professional company specialized in natural plant extracts, collagen a

pyrethrin

Cas:121-21-1

Min.Order:1 Kilogram

FOB Price: $33.0 / 35.0

Type:Trading Company

inquiry

Jilin haofei import and export trade Co.,Ltd

Price, service, company and transport advantage: 1. Best service, place of origin China, high quality, and reasonable price. 2. It's customers' right to choose the package (EMS, DHL, FEDEX, UPS). 3. It's customers' right

121-21-1 CAS NO.121-21-1

Cas:121-21-1

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Shanghai united Scientific Co.,Ltd.

United Scientific Company Located in Shanghai of China , is a competitive player in the global specialty and fine chemical market. Fenghua has both the expertise and flexibility to produce a wide range of chemicals. Focusing on developing the innovat

Shanghai Run-Biotech Co., Ltd.

Shanghai, Run-Biotech Co., Ltd is a leading domestic pharmaceutical, biopharmaceutical, and health care products R & D outsourcing services company. As an innovation-driven and customer-focused company, Run Biotech provides a broad and integrated por

PYRETHRIN 1

Cas:121-21-1

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Nanjing Raymon Biotech Co., Ltd.

Pyrethrin Storage:keep in dry and cool condition Package:25kg or according to cutomer's demand Application:Chemical research/pharma intermediate Transportation:By Sea,by Air,By courier like DHL or Fedx. Port:Shanghai/Shenzhen

Pyrethrin

Cas:121-21-1

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Finetech Industry Limited

FINETECH INDUSTRY LIMITED is a LONDON based CRO company providing drug discovery & development services to worldwide clients. FINETECH INDUSTRY LIMITED supplies the PYRETHRIN 1, CAS:121-21-1 with the most competitive price and the best quality. We ca

PYRETHRIN 1

Cas:121-21-1

Min.Order:0

Negotiable

Type:Trading Company

inquiry

SHANGHAI ZZBIO CO., LTD.

High pure standard, Quick shippment COA with HPLC, MS and NMR spectra. Package:10mg Application:pharmaceutical industry, food industry, research

Pyrethrin I

Cas:121-21-1

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Debye Scientific

Debyesci is here who supplied several kinds of chemical products to global pharmaceutical, drug discovery, agrochemical and biotechnology industries for four yearsOur key scientific leadership team has gained experience in top research and developmen

PyrethrinI

Cas:121-21-1

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Synthetic route

(1R,3R)-trans-chrysanthemic acid
4638-92-0

(1R,3R)-trans-chrysanthemic acid

(S)-(+)-pyrethrolone
487-67-2

(S)-(+)-pyrethrolone

pyrethrin I
121-21-1

pyrethrin I

Conditions
ConditionsYield
Stage #1: (1R,3R)-trans-chrysanthemic acid With 1-methyl-1H-imidazole; p-toluenesulfonyl chloride In acetonitrile at 0 - 5℃; for 0.5h; Inert atmosphere;
Stage #2: (S)-(+)-pyrethrolone In acetonitrile at 20 - 25℃; for 2h; Inert atmosphere;
74%
acyl chloride of (1R)-2.2-dimethyl-3t-<2-methyl-propenyl>-cyclopropane-carboxylic acid-(1r)

acyl chloride of (1R)-2.2-dimethyl-3t-<2-methyl-propenyl>-cyclopropane-carboxylic acid-(1r)

(S)-5-hydroxy-1-methyl-2-c.4)-yl>-cyclopenten-(1)-one-(3)

(S)-5-hydroxy-1-methyl-2-c.4)-yl>-cyclopenten-(1)-one-(3)

pyrethrin I
121-21-1

pyrethrin I

Conditions
ConditionsYield
With pyridine; benzene
chrysanthemoyl CoA

chrysanthemoyl CoA

(S)-(+)-pyrethrolone
487-67-2

(S)-(+)-pyrethrolone

pyrethrin I
121-21-1

pyrethrin I

Conditions
ConditionsYield
With (maltose-binding protein)-fusedTanacetum cinerariifolium GDSL lipase/esterase,recombinant, molecular weight: 81689 Da In aq. buffer at 25℃; for 0.166667h; pH=7.5; Kinetics; Reagent/catalyst; Enzymatic reaction;
(1R,3R)-trans-chrysanthemic acid
4638-92-0

(1R,3R)-trans-chrysanthemic acid

pyrethrin I
121-21-1

pyrethrin I

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: thionyl chloride / 0.5 h / 50 - 100 °C
2: 1 h / 0 °C / Reflux
3: 1,8-diazabicyclo[5.4.0]undec-7-ene / tetrahydrofuran / 0 °C
View Scheme
(1R)-trans-3-(2-methyl-1-propenyl)-2,2-dimethylcyclopropanecarboxylic acid chloride
4489-14-9

(1R)-trans-3-(2-methyl-1-propenyl)-2,2-dimethylcyclopropanecarboxylic acid chloride

C11H15IO2

C11H15IO2

pyrethrin I
121-21-1

pyrethrin I

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 1 h / 0 °C / Reflux
2: 1,8-diazabicyclo[5.4.0]undec-7-ene / tetrahydrofuran / 0 °C
View Scheme
C21H29IO3

C21H29IO3

pyrethrin I
121-21-1

pyrethrin I

Conditions
ConditionsYield
With 1,8-diazabicyclo[5.4.0]undec-7-ene In tetrahydrofuran at 0℃;
(S)-4-hydroxy-3-methyl-2-(2-propenyl)-2-cyclopenten-1-one
22373-75-7

(S)-4-hydroxy-3-methyl-2-(2-propenyl)-2-cyclopenten-1-one

pyrethrin I
121-21-1

pyrethrin I

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: [2-(1-methylethoxy-O)phenylmethyl-C](nitrato-O,O'){rel-(2R,5R,7R)-adamantane-2,1-diyl[3-(2,4,6-trimethylphenyl)-1-imidazolidinyl-2-ylidene]}ruthenium / tetrahydrofuran / 12 h / 35 °C
2: 1 h / 0 °C / Reflux
3: 1,8-diazabicyclo[5.4.0]undec-7-ene / tetrahydrofuran / 0 °C
View Scheme
(S)-(+)-4-hydroxy-3-methyl-2-(pent-4-en-2-ynyl)-2-cyclopenten-1-one

(S)-(+)-4-hydroxy-3-methyl-2-(pent-4-en-2-ynyl)-2-cyclopenten-1-one

pyrethrin I
121-21-1

pyrethrin I

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1.1: hydrogenchloride; zinc / ethanol; water / 16 h / 75 - 80 °C / Inert atmosphere
2.1: 1-methyl-1H-imidazole; p-toluenesulfonyl chloride / acetonitrile / 0.5 h / 0 - 5 °C / Inert atmosphere
2.2: 2 h / 20 - 25 °C / Inert atmosphere
View Scheme
Conditions
ConditionsYield
Multi-step reaction with 3 steps
1.1: potassium hydroxide / ethanol; water / 3 h
2.1: (S)-1-(1-Naphthyl)ethylamine / ethanol / 3 h / 20 °C
3.1: 1-methyl-1H-imidazole; p-toluenesulfonyl chloride / acetonitrile / 0.5 h / 0 - 5 °C / Inert atmosphere
3.2: 2 h / 20 - 25 °C / Inert atmosphere
View Scheme
Conditions
ConditionsYield
Multi-step reaction with 2 steps
1.1: (S)-1-(1-Naphthyl)ethylamine / ethanol / 3 h / 20 °C
2.1: 1-methyl-1H-imidazole; p-toluenesulfonyl chloride / acetonitrile / 0.5 h / 0 - 5 °C / Inert atmosphere
2.2: 2 h / 20 - 25 °C / Inert atmosphere
View Scheme
(S)-4-hydroxy-3-methyl-2-(2-propynyl)-cyclopent-2-ene-1-one
77087-34-4

(S)-4-hydroxy-3-methyl-2-(2-propynyl)-cyclopent-2-ene-1-one

pyrethrin I
121-21-1

pyrethrin I

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1.1: copper(l) iodide; tetrakis(triphenylphosphine) palladium(0); triethylamine / toluene / 16 h / 20 - 25 °C / Inert atmosphere
2.1: hydrogenchloride; zinc / ethanol; water / 16 h / 75 - 80 °C / Inert atmosphere
3.1: 1-methyl-1H-imidazole; p-toluenesulfonyl chloride / acetonitrile / 0.5 h / 0 - 5 °C / Inert atmosphere
3.2: 2 h / 20 - 25 °C / Inert atmosphere
View Scheme
ethyl 2,2-dimethyl-3-(2-methylpropenyl)cyclopropanecarboxylate
97-41-6

ethyl 2,2-dimethyl-3-(2-methylpropenyl)cyclopropanecarboxylate

pyrethrin I
121-21-1

pyrethrin I

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1.1: sodium hydride / mineral oil / 3 h / Inert atmosphere
2.1: potassium hydroxide / ethanol; water / 3 h
3.1: (S)-1-(1-Naphthyl)ethylamine / ethanol / 3 h / 20 °C
4.1: 1-methyl-1H-imidazole; p-toluenesulfonyl chloride / acetonitrile / 0.5 h / 0 - 5 °C / Inert atmosphere
4.2: 2 h / 20 - 25 °C / Inert atmosphere
View Scheme
pyrethrin I
121-21-1

pyrethrin I

(1S)-2-methyl-4-oxo-3-pentylcyclopent-2-en-1-yl (1R,3R)-2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropane-1-carboxylate

(1S)-2-methyl-4-oxo-3-pentylcyclopent-2-en-1-yl (1R,3R)-2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropane-1-carboxylate

Conditions
ConditionsYield
With palladium 10% on activated carbon; hydrogen In tetrahydrofuran at 20℃; for 4h;83%
pyrethrin I
121-21-1

pyrethrin I

(1S,4R)-4-hydroxy-2-methyl-3-((2Z)-penta-2,4-dien-1-yl)cyclopent-2-en-1-yl (1R,3R)-2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropane-1-carboxylate

(1S,4R)-4-hydroxy-2-methyl-3-((2Z)-penta-2,4-dien-1-yl)cyclopent-2-en-1-yl (1R,3R)-2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropane-1-carboxylate

Conditions
ConditionsYield
With L-Selectride In tetrahydrofuran at 0℃; for 1h; Inert atmosphere; stereoselective reaction;38%
pyrethrin I
121-21-1

pyrethrin I

A

(S)-2-methyl-4-oxo-3-(penta-1,3-dien-1-yl)cyclopent-2-en-1-yl (1R,3R)-2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropane-1-carboxylate

(S)-2-methyl-4-oxo-3-(penta-1,3-dien-1-yl)cyclopent-2-en-1-yl (1R,3R)-2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropane-1-carboxylate

B

(1S)-2-methyl-4-oxo-3-((E)-penta-2,4-dien-1-yl)cyclopent-2-en-1-yl (1R,3R)-2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropane-1-carboxylate

(1S)-2-methyl-4-oxo-3-((E)-penta-2,4-dien-1-yl)cyclopent-2-en-1-yl (1R,3R)-2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropane-1-carboxylate

Conditions
ConditionsYield
With formic acid; palladium 10% on activated carbon In tetrahydrofuran for 5h; Inert atmosphere; Reflux;A 15%
B 9%
pyrethrin I
121-21-1

pyrethrin I

acetic acid
64-19-7

acetic acid

A

(1S,4S)-4-acetoxy-2-methyl-3-((2Z)-penta-2,4-dien-1-yl)cyclopent-2-en-1-yl (1R,3R)-2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropane-1-carboxylate

(1S,4S)-4-acetoxy-2-methyl-3-((2Z)-penta-2,4-dien-1-yl)cyclopent-2-en-1-yl (1R,3R)-2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropane-1-carboxylate

B

(1S,4R)-4-hydroxy-2-methyl-3-((2Z)-penta-2,4-dien-1-yl)cyclopent-2-en-1-yl (1R,3R)-2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropane-1-carboxylate

(1S,4R)-4-hydroxy-2-methyl-3-((2Z)-penta-2,4-dien-1-yl)cyclopent-2-en-1-yl (1R,3R)-2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropane-1-carboxylate

C

(1S,4R)-4-acetoxy-2-methyl-3-((2Z)-penta-2,4-dien-1-yl)cyclopent-2-en-1-yl (1R,3R)-2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropane-1-carboxylate

(1S,4R)-4-acetoxy-2-methyl-3-((2Z)-penta-2,4-dien-1-yl)cyclopent-2-en-1-yl (1R,3R)-2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropane-1-carboxylate

Conditions
ConditionsYield
Stage #1: pyrethrin I With 9-bora-bicyclo[3.3.1]nonane In tetrahydrofuran for 5h; Inert atmosphere;
Stage #2: acetic acid In tetrahydrofuran for 1h; Inert atmosphere; Reflux;
A n/a
B 15%
C n/a
pyrethrin I
121-21-1

pyrethrin I

(Ξ)-4-ethoxy-3-methyl-2-penta-2c,4-dienyl-cyclopent-2-enone-(2,4-dinitro-phenylhydrazone)
102161-17-1

(Ξ)-4-ethoxy-3-methyl-2-penta-2c,4-dienyl-cyclopent-2-enone-(2,4-dinitro-phenylhydrazone)

Conditions
ConditionsYield
With ethanol; sulfuric acid; (2,4-dinitro-phenyl)-hydrazine
pyrethrin I
121-21-1

pyrethrin I

(1R,3R)-trans-chrysanthemic acid
4638-92-0

(1R,3R)-trans-chrysanthemic acid

Conditions
ConditionsYield
With potassium hydroxide In ethanol Hydrolysis;
pyrethrin I
121-21-1

pyrethrin I

(1R)-2.2-dimethyl-3t-<2-methyl-propenyl>-cyclopropane-carboxylic acid-(1r)-<(S)-4-oxo-2-methyl-3-(pentadien-(1.3c)-yl-(t))-cyclopenten-(2)-yl ester

(1R)-2.2-dimethyl-3t-<2-methyl-propenyl>-cyclopropane-carboxylic acid-(1r)-<(S)-4-oxo-2-methyl-3-(pentadien-(1.3c)-yl-(t))-cyclopenten-(2)-yl ester

pyrethrin I
121-21-1

pyrethrin I

(1S,4S)-4-acetoxy-2-methyl-3-((2Z)-penta-2,4-dien-1-yl)cyclopent-2-en-1-yl (1R,3R)-2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropane-1-carboxylate

(1S,4S)-4-acetoxy-2-methyl-3-((2Z)-penta-2,4-dien-1-yl)cyclopent-2-en-1-yl (1R,3R)-2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropane-1-carboxylate

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: sodium tetrahydroborate / tetrahydrofuran; methanol / 3 h / 0 °C
2: triethylamine / dichloromethane / 4.5 h / Inert atmosphere; Reflux
View Scheme
pyrethrin I
121-21-1

pyrethrin I

A

(S)-2-methyl-4-oxo-3-((Z)-pent-2-en-1-yl)cyclopent-2-en-1-yl (1R,3R)-2,2-dimethyl-3-(2-methylprop-1-en-1-yl)-cyclopropane-1-carboxylate
4466-14-2

(S)-2-methyl-4-oxo-3-((Z)-pent-2-en-1-yl)cyclopent-2-en-1-yl (1R,3R)-2,2-dimethyl-3-(2-methylprop-1-en-1-yl)-cyclopropane-1-carboxylate

B

(1S)-2-methyl-4-oxo-3-pentylcyclopent-2-en-1-yl (1R,3R)-2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropane-1-carboxylate

(1S)-2-methyl-4-oxo-3-pentylcyclopent-2-en-1-yl (1R,3R)-2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropane-1-carboxylate

Conditions
ConditionsYield
With copper(ll) sulfate pentahydrate; hydrazine hydrate; acetic acid In tetrahydrofuranA 68 %Chromat.
B 25 %Chromat.
pyrethrin I
121-21-1

pyrethrin I

A

(1S,4R)-4-hydroxy-2-methyl-3-((2Z)-penta-2,4-dien-1-yl)cyclopent-2-en-1-yl (1R,3R)-2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropane-1-carboxylate

(1S,4R)-4-hydroxy-2-methyl-3-((2Z)-penta-2,4-dien-1-yl)cyclopent-2-en-1-yl (1R,3R)-2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropane-1-carboxylate

B

(1S,4S)-4-hydroxy-2-methyl-3-((2Z)-penta-2,4-dien-1-yl)cyclopent-2-en-1-yl (1R,3R)-2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropane-1-carboxylate

(1S,4S)-4-hydroxy-2-methyl-3-((2Z)-penta-2,4-dien-1-yl)cyclopent-2-en-1-yl (1R,3R)-2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropane-1-carboxylate

Conditions
ConditionsYield
With sodium tetrahydroborate In tetrahydrofuran; methanol at 0℃; for 3h;A 202 mg
B 45 mg
pyrethrin I
121-21-1

pyrethrin I

(1S,4R)-4-acetoxy-2-methyl-3-((2Z)-penta-2,4-dien-1-yl)cyclopent-2-en-1-yl (1R,3R)-2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropane-1-carboxylate

(1S,4R)-4-acetoxy-2-methyl-3-((2Z)-penta-2,4-dien-1-yl)cyclopent-2-en-1-yl (1R,3R)-2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropane-1-carboxylate

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1.1: 9-bora-bicyclo[3.3.1]nonane / tetrahydrofuran / 5 h / Inert atmosphere
1.2: 1 h / Inert atmosphere; Reflux
2.1: triethylamine / dichloromethane / 4.5 h / Inert atmosphere; Reflux
View Scheme
Multi-step reaction with 2 steps
1: sodium tetrahydroborate / tetrahydrofuran; methanol / 3 h / 0 °C
2: triethylamine / dichloromethane / 4.5 h / Inert atmosphere; Reflux
View Scheme

Hot Products

Post buying leads

About|Contact|Cas|Product Name|Molecular|Country|Encyclopedia

Message|New Cas|MSDS|Service|Advertisement|CAS DataBase|Article Data|Manufacturers | Chemical Catalog

©2008 LookChem.com,License: ICP

NO.:Zhejiang16009103

complaints:service@lookchem.com Desktop View