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Greenutra Resource Inc

Anemone Root Extract Product name: Anemone root Extract Latin name:Pulsatilla chinensis (Bunge) Regel. Used Part: Dried root Appearance: Brown Fine Powder Specification:10:1 Test Method: TLC. Intr

GMP Anemone Root Extract/Pulsatilla chinensis Extract

Cas:108-28-1

Min.Order:1 Kilogram

FOB Price: $17.0

Type:Trading Company

inquiry

Dayang Chem (Hangzhou) Co.,Ltd.

Dayangchem's R&D center can offer custom synthesis according to the contract research and development services for the fine chemicals, pharmaceutical, biotechnique and some of the other chemicals. DayangChem can provide different quantities

5-methylenefuran-2(5H)-one

Cas:108-28-1

Min.Order:1 Kilogram

FOB Price: $3.0

Type:Lab/Research institutions

inquiry

shanghai Tauto Biotech Co., Ltd

20-year experience in Phytochemicals Each product has passed very strict tests (NMR\MS\HPLC) Agents in 13 countries Certified by ISO 9001:2015 quality management system Leader Supplier of Botanical Reference Materials in China 3000 kinds of

Protoanemonin

Cas:108-28-1

Min.Order:10 Milligram

Negotiable

Type:Manufacturers

inquiry

Xi'an Xszo Chem Co., Ltd.

1. Factory price and high quality must be guaranteed, base on 8 years of production and R&D experience2. Free samples will be provided,ensure specifications and quality are right for customer3. Customers will receive the most professional technical s

Natural Extract 98% 5-methylenefuran-2(5H)-one 108-28-1 HACCP Manufacturer

Cas:108-28-1

Min.Order:1 Gram

FOB Price: $0.1

Type:Manufacturers

inquiry

Zhuozhou Wenxi import and Export Co., Ltd

WITH US,YOUR MONEY IN SAFE,YOUR BUSINESS IN SAFE 1)Quick Response Within 12 hours; 2)Quality Guarantee: All products are strictly tested by our QC, confirmed by QA and approved by third party lab in China, USA, Canada, Germany, UK, Italy, France et

Pharmaceutical Grade CAS 108-28-1 with competitive price

Cas:108-28-1

Min.Order:1 Kilogram

FOB Price: $139.0 / 210.0

Type:Trading Company

inquiry

Shanghai Upbio Tech Co.,Ltd

1.No Less 8 years exporting experience. Clients 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 Specialized

Protoanemonin 108-28-1

Cas:108-28-1

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Qingdao Beluga Import and Export Co., LTD

5-methylenefuran-2(5H)-one CAS:108-28-1 Qingdao Belugas Import and Export Co., Ltd. is a scientific and technological company integrating research and development, production and trade of chemical intermediates, specializing in high quality organic

5-methylenefuran-2(5H)-one CAS:108-28-1

Cas:108-28-1

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

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

Protoanemonin

Cas:108-28-1

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

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

Protoanemonin

Cas:108-28-1

Min.Order:0

Negotiable

Type:Lab/Research institutions

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

5-methylenefuran-2(5H)-one

Cas:108-28-1

Min.Order:0 Metric Ton

Negotiable

Type:Lab/Research institutions

inquiry

Hangzhou J&H Chemical Co., Ltd.

J&H CHEM R&D center can offer custom synthesis according to the contract research and development services for the fine chemicals, pharmaceutical, biotechnique and some of the other chemicals. J&H CHEM has some Manufacturing base in Jia

Protoanemonin

Cas:108-28-1

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Zibo Hangyu Biotechnology Development Co., Ltd

Zibo Hangyu Biotechnology Development Co., Ltd is a leading manufacturer and supplier of chemicals in China. We develop produce and distribute high quality pharmaceuticals, intermediates, special chemicals and OLED intermediates and other fine chemi

5-methylenefuran-2(5H)-one

Cas:108-28-1

Min.Order:10 Gram

FOB Price: $100.0

Type:Lab/Research institutions

inquiry

Hangzhou Dingyan Chem Co., Ltd

R & D enterprises have their own stock in stockAppearance:To be subject to the object Package:10g Application:pharmaceutical intermediates Transportation:Air Port:Shanghai;Guangzhou

5-Methylenefuran-2(5H)-one

Cas:108-28-1

Min.Order:0

Negotiable

Type:Manufacturers

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 . Application:Herbal extr

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

5-methylenefuran-2(5H)-one

Cas:108-28-1

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Henan Tianfu Chemical Co., Ltd.

1.Our services:A.Supply sampleB.The packing also can be according the customers` requirmentC.Any inquiries will be replied within 24 hoursD.we provide Commerical Invoice, Packing List, Bill of loading, COA , Health certificate and Origin certificate.

Protoanemonin

Cas:108-28-1

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Xian Changyue Biological Technology Co., Ltd.

best seller Application:API

5-methylenefuran-2(5H)-one

Cas:108-28-1

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

Hebei Sankai Chemical Technology Co., Ltd

1. Product advantages? High purity, all above 98.5%, no impurities after dissolution? We will test each batch to ensure quality? OEM and private brand services designed for free? Various cap colors available? We can also provide MT1 peptide powder2.

5-methylenefuran-2(5H)-one

Cas:108-28-1

Min.Order:0

Negotiable

Type:Trading Company

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

Protoanemonin

Cas:108-28-1

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

DB BIOTECH CO., LTD

best seller Application:API

5-methylenefuran-2(5H)-one

Cas:108-28-1

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

5-methylenefuran-2(5H)-one

Cas:108-28-1

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

108-28-1

Cas:108-28-1

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Hebei Muhuang Technology Co., Ltd

best seller Application:API

5-methylenefuran-2(5H)-one

Cas:108-28-1

Min.Order:0

Negotiable

Type:Trading Company

inquiry

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

5-methylenefuran-2(5H)-one

Cas:108-28-1

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Qingdao Sigma Chemical Co., Ltd.

Qingdao Sigma Chemical Ltd is is a global chemical industry manufacturers and suppliers of pharmaceuticals and intermediates, peptide,Nootropis etc API, food and feed additives, herbal extracts, agrochemicals and fine chemicals etc. Our Labo

High Quality 5-methylenefuran-2(5H)-one

Cas:108-28-1

Min.Order:1 Gram

FOB Price: $1.0

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

Protoanemonin

Cas:108-28-1

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Chungking Joyinchem Co., Ltd.

Joyinchem have been committed to chemical supply for several years and have built good cooperation records with multinational chemical corporations and importers from all over the world. Our services include:-Spot goods-Contract manufacturing-Custom

Protoanemonin

Cas:108-28-1

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Shanghai AngewChem Co., Ltd.

Shanghai AngewChemCo., Ltd. is an innovative enterprise on fine chemicals and pharmaceuticals. Based on Shanghai R&D center and Hunan chemical manufacturing plant, we offer chemical research, process development, and large-scale production. Complete

protoaneMonin

Cas:108-28-1

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

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

5-methylenefuran-2(5H)-one

Cas:108-28-1

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Synthetic route

5-hydroxy-5-methyl-2(5H)-furanone
14300-71-1

5-hydroxy-5-methyl-2(5H)-furanone

protoanemonin
108-28-1

protoanemonin

Conditions
ConditionsYield
With trifluoroacetic acid In chloroform at 10 - 15℃; for 2h;82%
With trifluorormethanesulfonic acid In chloroform-d1 for 1.5h; Molecular sieve;
3,5-di-O-p-toluoyl-2-deoxy-D-ribono-1,4-lactone
53009-05-5

3,5-di-O-p-toluoyl-2-deoxy-D-ribono-1,4-lactone

protoanemonin
108-28-1

protoanemonin

Conditions
ConditionsYield
With triethylamine In dichloromethane at 20℃;80%
γ-hydroxymethyl-α,β-butenolide
10374-60-4

γ-hydroxymethyl-α,β-butenolide

protoanemonin
108-28-1

protoanemonin

Conditions
ConditionsYield
With sodium acetate Heating;60%
penta-3,4-dienoic acid
60053-24-9

penta-3,4-dienoic acid

protoanemonin
108-28-1

protoanemonin

Conditions
ConditionsYield
With iodine; sodium hydrogencarbonate; potassium iodide In water; acetonitrile 1.) 0 deg C, in the dark; 2.) 25 deg C, 3 d;57%
With iodine; sodium hydrogencarbonate; potassium iodide In water; acetonitrile 1.) 0 deg C, in the dark; 2.) 25 deg C, 3 d; various β-allenic acid investigated;57%
With potassium carbonate; copper dichloride; bis-triphenylphosphine-palladium(II) chloride In N,N-dimethyl-formamide at 70℃; for 12h;31 % Spectr.
2-methylfuran
534-22-5

2-methylfuran

A

protoanemonin
108-28-1

protoanemonin

B

furfural
98-01-1

furfural

C

maleic anhydride
108-31-6

maleic anhydride

Conditions
ConditionsYield
With air; V-Mo-O catalyst on corundizium support at 350℃; for 0.000138889h; Product distribution; var. V:Mo ratios;A 43%
B 2%
C 24%
With air; vanadium-molybdenum oxide (V:Mo 3:1) oncorundizium support at 350℃; for 0.000138889h;A 43%
B 2%
C 24%
5-methyl-2-furanone
591-12-8

5-methyl-2-furanone

protoanemonin
108-28-1

protoanemonin

Conditions
ConditionsYield
Stage #1: 5-methyl-2-furanone With bromine In tetrachloromethane at 0℃; for 1h;
Stage #2: With quinoline In benzene at 0 - 20℃; for 5h;
37%
(Z)-3-iodoprop-2-enoic acid
6214-35-3

(Z)-3-iodoprop-2-enoic acid

trimethylsilylacetylene
1066-54-2

trimethylsilylacetylene

protoanemonin
108-28-1

protoanemonin

Conditions
ConditionsYield
With copper(l) iodide; palladium 10% on activated carbon; triethylamine; triphenylphosphine In 1,4-dioxane at 25 - 80℃; for 3.5h; Inert atmosphere; regioselective reaction;15%
5-(acetyloxy)-5-methyl-2(5H)-furanone
74982-59-5

5-(acetyloxy)-5-methyl-2(5H)-furanone

protoanemonin
108-28-1

protoanemonin

Conditions
ConditionsYield
With acetic anhydride; acetic acid
With sulfuric acid; acetic anhydride; acetic acid
With sulfuric acid In acetic anhydride; acetic acid at 80℃;
pent-2t-en-4-ynoic acid
68267-52-7

pent-2t-en-4-ynoic acid

protoanemonin
108-28-1

protoanemonin

Conditions
ConditionsYield
With hydrogen bromide; acetic acid
4-oxo-2-pentenoic acid
4743-82-2

4-oxo-2-pentenoic acid

protoanemonin
108-28-1

protoanemonin

Conditions
ConditionsYield
With sulfuric acid; acetic anhydride; acetic acid
5-methyl-2-furanone
591-12-8

5-methyl-2-furanone

A

protoanemonin
108-28-1

protoanemonin

Conditions
ConditionsYield
With selenium(IV) oxide In 1,4-dioxane for 6h; Heating; Yield given. Yields of byproduct given. Title compound not separated from byproducts;
5-methyl-2-furanone
591-12-8

5-methyl-2-furanone

A

protoanemonin
108-28-1

protoanemonin

B

5-bromo-5-methyloxol-3-en-2-one
72137-30-5

5-bromo-5-methyloxol-3-en-2-one

C

4-bromo-5-methyloxol-4-en-2-one
85846-70-4

4-bromo-5-methyloxol-4-en-2-one

r-4,t-5-dibromo-c-5-methyloxolan-2-one
1424-35-7, 85846-69-1, 123694-21-3, 123694-22-4

r-4,t-5-dibromo-c-5-methyloxolan-2-one

Conditions
ConditionsYield
With N-Bromosuccinimide; sodium hydrogencarbonate; calcium oxide In tetrachloromethane for 28h; Ambient temperature; Irradiation; Yield given. Further byproducts given. Yields of byproduct given;
2-Methyl-5-tert-butylfuran
15146-95-9

2-Methyl-5-tert-butylfuran

A

furan
110-00-9

furan

B

2-methylfuran
534-22-5

2-methylfuran

C

protoanemonin
108-28-1

protoanemonin

D

furfural
98-01-1

furfural

E

maleic anhydride
108-31-6

maleic anhydride

F

5-(tert-butyl)furan-2-carbaldehyde
64122-20-9

5-(tert-butyl)furan-2-carbaldehyde

Conditions
ConditionsYield
With oxygen; vanadia; molybdenum(VI) oxide; silver(l) oxide Product distribution;
Trimethyl(5-methyl-2-furyl)silane
13271-75-5

Trimethyl(5-methyl-2-furyl)silane

A

furan
110-00-9

furan

B

2-methylfuran
534-22-5

2-methylfuran

C

protoanemonin
108-28-1

protoanemonin

D

furfural
98-01-1

furfural

E

maleic anhydride
108-31-6

maleic anhydride

F

(5-trimethylsilanyl)furan-2-carbaldehyde
13529-06-1

(5-trimethylsilanyl)furan-2-carbaldehyde

Conditions
ConditionsYield
With oxygen; vanadia; molybdenum(VI) oxide; silver(l) oxide Product distribution;
N-(1-deoxy-D-fructos-1-yl)-β-alanine
37721-43-0

N-(1-deoxy-D-fructos-1-yl)-β-alanine

protoanemonin
108-28-1

protoanemonin

Conditions
ConditionsYield
at 195℃; for 0.25h; Product distribution; pyrolysis (various times and temperatures);
Mechanism; (14)C labelled at 1,2 and 6 positions (pyrolysis);
Conditions
ConditionsYield
at 280℃; for 0.25h; Mechanism; pyrolysis;
N-(1-deoxy-D-fructos-1-yl)-L-glycine
4429-05-4

N-(1-deoxy-D-fructos-1-yl)-L-glycine

protoanemonin
108-28-1

protoanemonin

Conditions
ConditionsYield
at 195℃; for 0.25h; Product distribution; pyrolysis (various times and temperatures);
levulinic acid
123-76-2

levulinic acid

protoanemonin
108-28-1

protoanemonin

Conditions
ConditionsYield
at 280℃; for 0.25h; Mechanism; pyrolysis;
Multi-step reaction with 2 steps
1.1: 60 percent / H3PO4 / Heating
2.1: Br2 / CCl4 / 1 h / 0 °C
2.2: 37 percent / quinoline / benzene / 5 h / 0 - 20 °C
View Scheme
(3aR,6R,6aR)-6-(tert-Butyl-dimethyl-silanyloxymethyl)-2-ethoxy-dihydro-furo[3,4-d][1,3]dioxol-4-one
116504-11-1, 116504-23-5

(3aR,6R,6aR)-6-(tert-Butyl-dimethyl-silanyloxymethyl)-2-ethoxy-dihydro-furo[3,4-d][1,3]dioxol-4-one

A

protoanemonin
108-28-1

protoanemonin

B

5-(tert-Butyl-dimethyl-silanyloxymethyl)-3H-furan-2-one
116504-12-2

5-(tert-Butyl-dimethyl-silanyloxymethyl)-3H-furan-2-one

C

5-({[tert-butyl(dimethyl)silyl]oxy}methyl)-5H-furan-2-one
116561-10-5

5-({[tert-butyl(dimethyl)silyl]oxy}methyl)-5H-furan-2-one

Conditions
ConditionsYield
With trimellitic anhydride at 300 - 320℃; under 60 - 80 Torr; for 3h; Yield given;
(-)-(S)-5-iodomethyloxol-3-en-2-one
85694-08-2

(-)-(S)-5-iodomethyloxol-3-en-2-one

protoanemonin
108-28-1

protoanemonin

Conditions
ConditionsYield
With cyanide(1-) In dichloromethane
methyl (Z)-3-(2,2-dimethyl-1,3-dioxolan-4-yl)-2-propenoate
103773-19-9

methyl (Z)-3-(2,2-dimethyl-1,3-dioxolan-4-yl)-2-propenoate

A

protoanemonin
108-28-1

protoanemonin

Conditions
ConditionsYield
With selenium(IV) oxide In 1,4-dioxane for 6h; Heating; Yield given. Yields of byproduct given. Title compound not separated from byproducts;
(-)-(S)-5-methanesulfonyloxymethyloxol-3-en-2-one
85694-07-1

(-)-(S)-5-methanesulfonyloxymethyloxol-3-en-2-one

protoanemonin
108-28-1

protoanemonin

Conditions
ConditionsYield
With pyrrolide anion
(S)-(5-oxo-2,5-dihydrofuran-2-yl)methyl 4-methylbenzenesulfonate
85694-06-0

(S)-(5-oxo-2,5-dihydrofuran-2-yl)methyl 4-methylbenzenesulfonate

protoanemonin
108-28-1

protoanemonin

Conditions
ConditionsYield
With cyanide(1-) In dichloromethane
Multi-step reaction with 2 steps
1: 63 percent / NaI / acetone / 8 h / Heating
2: Ag2O / CH2Cl2
View Scheme
orthoformic acid triethyl ester
122-51-0

orthoformic acid triethyl ester

D-Ribono-1,4-lactone
5336-08-3

D-Ribono-1,4-lactone

A

protoanemonin
108-28-1

protoanemonin

B

(5S)-5-(hydroxymethyl)-5H-furan-2-one
78508-96-0

(5S)-5-(hydroxymethyl)-5H-furan-2-one

Conditions
ConditionsYield
1.) THF, reflux; 2.) 220 deg C, 18 Hgmm; Multistep reaction;
(-)-(S)-5-iodomethyloxol-3-en-2-one
85694-08-2

(-)-(S)-5-iodomethyloxol-3-en-2-one

butan-1-ol
71-36-3

butan-1-ol

protoanemonin
108-28-1

protoanemonin

Conditions
ConditionsYield
With silver(l) oxide In dichloromethane
α-angelicalactone

α-angelicalactone

protoanemonin
108-28-1

protoanemonin

Conditions
ConditionsYield
With carbon disulfide; bromine Behandeln einer Loesung des Reaktionsprodukts in Benzol oder Aether in Chinolin;
γ-acetoxy-γ-methyl-Δα.β-crotonoactone

γ-acetoxy-γ-methyl-Δα.β-crotonoactone

protoanemonin
108-28-1

protoanemonin

Conditions
ConditionsYield
bei der trocknen Destillation;
5-(acetyloxy)-5-methyl-2(5H)-furanone
74982-59-5

5-(acetyloxy)-5-methyl-2(5H)-furanone

sulfuric acid
7664-93-9

sulfuric acid

acetic anhydride
108-24-7

acetic anhydride

acetic acid
64-19-7

acetic acid

protoanemonin
108-28-1

protoanemonin

(-)-ranunculin
644-69-9

(-)-ranunculin

aqueous sodium acetate solution

aqueous sodium acetate solution

protoanemonin
108-28-1

protoanemonin

protoanemonin
108-28-1

protoanemonin

potassium phenyltrifluoborate

potassium phenyltrifluoborate

4-phenyl-5-methylenedihydrofuran-2-one
126833-53-2

4-phenyl-5-methylenedihydrofuran-2-one

Conditions
ConditionsYield
With 2-methoxy-phenol; bis(1,5-cyclooctadiene)rhodium(I) hexafluorophosphate; (R)-2,2'-bis(diphenylphosphanyl)-1,1'-binaphthyl In toluene at 110 - 115℃; for 20h;90%
protoanemonin
108-28-1

protoanemonin

buta-1,3-diene
106-99-0

buta-1,3-diene

1-oxaspiro<4.5>deca-3,7-dien-2-one
84477-25-8

1-oxaspiro<4.5>deca-3,7-dien-2-one

Conditions
ConditionsYield
With hydroquinone at 155℃; for 4h;85%
at 180℃;34%
protoanemonin
108-28-1

protoanemonin

2,3-dimethyl-buta-1,3-diene
513-81-5

2,3-dimethyl-buta-1,3-diene

7,8-dimethyl-1-oxaspiro<4.5>deca-3,7-dien-2-one
126109-77-1

7,8-dimethyl-1-oxaspiro<4.5>deca-3,7-dien-2-one

Conditions
ConditionsYield
With hydroquinone at 170℃; for 4h;81%
With hydroquinone at 162℃; for 4h;81%
protoanemonin
108-28-1

protoanemonin

trans-2-methyl-1,3-pentadiene
926-54-5

trans-2-methyl-1,3-pentadiene

6,8-dimethyl-1-oxaspiro<4.5>deca-3,7-dien-2-one
126036-63-3

6,8-dimethyl-1-oxaspiro<4.5>deca-3,7-dien-2-one

Conditions
ConditionsYield
With hydroquinone at 159℃; for 4h;80%
protoanemonin
108-28-1

protoanemonin

isoprene
78-79-5

isoprene

8-methyl-1-oxaspiro<4.5>deca-3,7-dien-2-one
126036-64-4

8-methyl-1-oxaspiro<4.5>deca-3,7-dien-2-one

Conditions
ConditionsYield
With hydroquinone at 154℃; for 4h; Further byproducts given;75%
protoanemonin
108-28-1

protoanemonin

N-hydroxy-4-methoxy-benzenecarboximidoyl chloride
38435-51-7

N-hydroxy-4-methoxy-benzenecarboximidoyl chloride

3,3'-bis(p-anisyl)-3a,6a-dihydro-4-oxospiro[isoxazolino-5',6-isoxazolo[3,4-c]furanone]

3,3'-bis(p-anisyl)-3a,6a-dihydro-4-oxospiro[isoxazolino-5',6-isoxazolo[3,4-c]furanone]

Conditions
ConditionsYield
With triethylamine; hydroquinone In diethyl ether at 20℃;74%
protoanemonin
108-28-1

protoanemonin

1-methylbuta-1,3-diene
2004-70-8

1-methylbuta-1,3-diene

6-methyl-1-oxaspiro<4.5>deca-3,7-dien-2-one
126036-62-2

6-methyl-1-oxaspiro<4.5>deca-3,7-dien-2-one

Conditions
ConditionsYield
With hydroquinone at 150℃; for 4h;72%
protoanemonin
108-28-1

protoanemonin

trans-2-methyl-1,3-pentadiene
926-54-5

trans-2-methyl-1,3-pentadiene

A

7,9-Dimethyl-1-oxa-spiro[4.5]deca-3,7-dien-2-one

7,9-Dimethyl-1-oxa-spiro[4.5]deca-3,7-dien-2-one

B

6,8-dimethyl-1-oxaspiro<4.5>deca-3,7-dien-2-one
126036-63-3

6,8-dimethyl-1-oxaspiro<4.5>deca-3,7-dien-2-one

Conditions
ConditionsYield
With hydroquinone at 150℃; for 4h;A n/a
B 70%
protoanemonin
108-28-1

protoanemonin

N-hydroxy-4-methylbenzenecarboximidoyl chloride
36288-37-6

N-hydroxy-4-methylbenzenecarboximidoyl chloride

3,3'-Di-p-tolyl-4,5-dihydro-[5,5']biisoxazolyl

3,3'-Di-p-tolyl-4,5-dihydro-[5,5']biisoxazolyl

Conditions
ConditionsYield
With triethylamine In toluene for 6h; Heating;70%
protoanemonin
108-28-1

protoanemonin

N-hydroxy-4-methylbenzenecarboximidoyl chloride
36288-37-6

N-hydroxy-4-methylbenzenecarboximidoyl chloride

3,3'-bis(p-tolyl)-3a,6a-dihydro-4-oxospiro[isoxazolino-5',6-isoxazolo[3,4-c]furanone]
292605-27-7

3,3'-bis(p-tolyl)-3a,6a-dihydro-4-oxospiro[isoxazolino-5',6-isoxazolo[3,4-c]furanone]

Conditions
ConditionsYield
With triethylamine; hydroquinone In diethyl ether at 20℃;69%
protoanemonin
108-28-1

protoanemonin

isoprene
78-79-5

isoprene

A

7-methyl-1-oxaspiro<4.5>deca-3,7-dien-2-one
126036-65-5

7-methyl-1-oxaspiro<4.5>deca-3,7-dien-2-one

B

8-methyl-1-oxaspiro<4.5>deca-3,7-dien-2-one
126036-64-4

8-methyl-1-oxaspiro<4.5>deca-3,7-dien-2-one

Conditions
ConditionsYield
With hydroquinone at 155℃; for 4h;A n/a
B 65%
aluminium trichloride In dichloromethane for 21h; Product distribution; Ambient temperature; also without catalyst, various dienes, other temp., time, solvent;
at 108℃; Kinetics; Thermodynamic data; energy barriers: Ep, Em; other temp.;
protoanemonin
108-28-1

protoanemonin

1-methylbuta-1,3-diene
2004-70-8

1-methylbuta-1,3-diene

A

9-Methyl-1-oxa-spiro[4.5]deca-3,7-dien-2-one

9-Methyl-1-oxa-spiro[4.5]deca-3,7-dien-2-one

B

6-methyl-1-oxaspiro<4.5>deca-3,7-dien-2-one
126036-62-2

6-methyl-1-oxaspiro<4.5>deca-3,7-dien-2-one

Conditions
ConditionsYield
With hydroquinone at 150℃; for 4h;A n/a
B 64%
protoanemonin
108-28-1

protoanemonin

A

1,2-propanediene
463-49-0

1,2-propanediene

B

maleic anhydride
930-60-9

maleic anhydride

C

prop-1-yne
74-99-7

prop-1-yne

Conditions
ConditionsYield
at 1100℃;A 10%
B 60%
C 25%
protoanemonin
108-28-1

protoanemonin

N-hydroxy-4-methoxy-benzenecarboximidoyl chloride
38435-51-7

N-hydroxy-4-methoxy-benzenecarboximidoyl chloride

3,3'-Bis-(4-methoxy-phenyl)-4,5-dihydro-[5,5']biisoxazolyl

3,3'-Bis-(4-methoxy-phenyl)-4,5-dihydro-[5,5']biisoxazolyl

Conditions
ConditionsYield
With triethylamine In toluene for 6h; Heating;60%
protoanemonin
108-28-1

protoanemonin

benzohydroximoyl chloride
698-16-8

benzohydroximoyl chloride

3,3'-diphenyl-3a,6a-dihydro-4-oxospiro[isoxazolino-5',6-isoxazolo[3,4-c]furanone]
292605-26-6

3,3'-diphenyl-3a,6a-dihydro-4-oxospiro[isoxazolino-5',6-isoxazolo[3,4-c]furanone]

Conditions
ConditionsYield
With triethylamine; hydroquinone In diethyl ether at 20℃;60%
protoanemonin
108-28-1

protoanemonin

C17H30N2O5Si
1426817-89-1

C17H30N2O5Si

C22H34O7Si

C22H34O7Si

Conditions
ConditionsYield
With rhodium(II) acetate dimer In toluene at 25℃;60%
protoanemonin
108-28-1

protoanemonin

tert-butyl 2-diazo-3,6-dioxoheptanoate
573692-80-5

tert-butyl 2-diazo-3,6-dioxoheptanoate

C16H20O6

C16H20O6

Conditions
ConditionsYield
With rhodium(II) acetate dimer In toluene at 25℃;59%
protoanemonin
108-28-1

protoanemonin

cyclohexa-1,3-diene
1165952-91-9

cyclohexa-1,3-diene

3-((1R*,2S*,4R*)-2-Hydroxybicyclo<2.2.2>oct-5-en-2-yl)propanoic acid 1,4-lactone
130619-40-8, 130696-40-1

3-((1R*,2S*,4R*)-2-Hydroxybicyclo<2.2.2>oct-5-en-2-yl)propanoic acid 1,4-lactone

3-((1R*,2R*,4R*)-2-Hydroxybicyclo<2.2.2>oct-5-en-2-yl)propanoic acid 1,4-lactone
130619-40-8, 130696-40-1

3-((1R*,2R*,4R*)-2-Hydroxybicyclo<2.2.2>oct-5-en-2-yl)propanoic acid 1,4-lactone

Conditions
ConditionsYield
In dichloromethane at 165℃; for 2h;A 54%
B 24%
protoanemonin
108-28-1

protoanemonin

Conditions
ConditionsYield
53%
protoanemonin
108-28-1

protoanemonin

cyclopenta-1,3-diene
542-92-7

cyclopenta-1,3-diene

(1SR, 2RS, 4SR)-3-(2-hydroxybicyclo[2.2.1]hept-5-en-2-yl)prop-2-enoic acid lactone
130619-39-5, 130696-39-8

(1SR, 2RS, 4SR)-3-(2-hydroxybicyclo[2.2.1]hept-5-en-2-yl)prop-2-enoic acid lactone

(1SR, 2SR, 4SR)-3-(2-hydroxybicyclo[2.2.1]hept-5-en-2-yl)prop-2-enoic acid lactone
130619-39-5, 130696-39-8

(1SR, 2SR, 4SR)-3-(2-hydroxybicyclo[2.2.1]hept-5-en-2-yl)prop-2-enoic acid lactone

Conditions
ConditionsYield
In dichloromethane at 90℃; for 2h;A 22%
B 52%
In dichloromethane at 60℃; for 70.7h; Kinetics; Product distribution; reactions at different temperatures; reactions with cyclohexadiene at different temperatures;
In dichloromethane at 160℃; for 7.5h; Yield given. Yields of byproduct given;
In dichloromethane at 60℃; for 70.7h; Yield given. Yields of byproduct given;
protoanemonin
108-28-1

protoanemonin

N-phenyl-C-(4-nitrobenzoyl)nitrone
22269-68-7

N-phenyl-C-(4-nitrobenzoyl)nitrone

(3'RS;5,5'RS)-3'-(4-nitrobenzoyl)-2'-phenyl-2',3'-dihydrospiroisoxazolino[5':5]-(5H)-furan-2-one

(3'RS;5,5'RS)-3'-(4-nitrobenzoyl)-2'-phenyl-2',3'-dihydrospiroisoxazolino[5':5]-(5H)-furan-2-one

Conditions
ConditionsYield
With hydroquinone In ethyl acetate at 20℃; for 24h;52%
protoanemonin
108-28-1

protoanemonin

benzohydroximoyl chloride
698-16-8

benzohydroximoyl chloride

anemonin

anemonin

B

3,3'-diphenyl-3a,6a-dihydro-4-oxospiro[isoxazolino-5',6-isoxazolo[3,4-c]furanone]
292605-26-6

3,3'-diphenyl-3a,6a-dihydro-4-oxospiro[isoxazolino-5',6-isoxazolo[3,4-c]furanone]

C

2,5-dihydro-3'-phenylspiroisoxazolino-[5',5]furan-2-one
292605-22-2

2,5-dihydro-3'-phenylspiroisoxazolino-[5',5]furan-2-one

Conditions
ConditionsYield
With triethylamine In diethyl ether at 20℃; for 24h;A n/a
B 26%
C 51%
protoanemonin
108-28-1

protoanemonin

4-chlorobenzohydroximoyl chloride
28123-63-9

4-chlorobenzohydroximoyl chloride

3,3'-Bis-(4-chloro-phenyl)-4,5-dihydro-[5,5']biisoxazolyl

3,3'-Bis-(4-chloro-phenyl)-4,5-dihydro-[5,5']biisoxazolyl

Conditions
ConditionsYield
With triethylamine In toluene for 6h; Heating;50%
protoanemonin
108-28-1

protoanemonin

1-pyrroline N-oxide
24423-88-9

1-pyrroline N-oxide

(2RS,3a'SR)-3a',4',5',6'-tetrahydrospiro(furo-2(5H),2'(3'H)-pyrrolo[1,2-b]isoxazol)-5-one

(2RS,3a'SR)-3a',4',5',6'-tetrahydrospiro(furo-2(5H),2'(3'H)-pyrrolo[1,2-b]isoxazol)-5-one

(2RS,3a'RS)-3a',4',5',6'-tetrahydrospiro(furo-2(5H),2'(3'H)-pyrrolo[1,2-b]isoxazol)-5-one

(2RS,3a'RS)-3a',4',5',6'-tetrahydrospiro(furo-2(5H),2'(3'H)-pyrrolo[1,2-b]isoxazol)-5-one

(3RS,3aRS,8aSR,8bSR,3a'RS)-spiro[tetrahydrofuro[3,4-d]pyrrolo[1,2-b]isoxazol-3(3aH),2'(3'H)-tetrahydropyrrolo[1,2-b]isoxazol]-1(8bH)-one

(3RS,3aRS,8aSR,8bSR,3a'RS)-spiro[tetrahydrofuro[3,4-d]pyrrolo[1,2-b]isoxazol-3(3aH),2'(3'H)-tetrahydropyrrolo[1,2-b]isoxazol]-1(8bH)-one

(RS,RS)-1,7-dioxa-dispiro[4.0.4.2]dodeca-3,9-diene-2,8-dione
508-44-1

(RS,RS)-1,7-dioxa-dispiro[4.0.4.2]dodeca-3,9-diene-2,8-dione

Conditions
ConditionsYield
In chloroform at 70℃; for 4h; Further byproducts given;A 2%
B 50%
C 16 mg
D 15%
protoanemonin
108-28-1

protoanemonin

1-pyrroline N-oxide
24423-88-9

1-pyrroline N-oxide

(2RS,3a'RS)-3a',4',5',6'-tetrahydrospiro(furo-2(5H),2'(3'H)-pyrrolo[1,2-b]isoxazol)-5-one

(2RS,3a'RS)-3a',4',5',6'-tetrahydrospiro(furo-2(5H),2'(3'H)-pyrrolo[1,2-b]isoxazol)-5-one

(3RS,3aRS,8aRS,8bSR,3a'RS)-spiro[tetrahydrofuro[3,4-d]pyrrolo[1,2-b]isoxazol-3(3aH),2'(3'H)-tetrahydropyrrolo[1,2-b]isoxazol]-1(8bH)-one

(3RS,3aRS,8aRS,8bSR,3a'RS)-spiro[tetrahydrofuro[3,4-d]pyrrolo[1,2-b]isoxazol-3(3aH),2'(3'H)-tetrahydropyrrolo[1,2-b]isoxazol]-1(8bH)-one

(3RS,3aRS,8aSR,8bSR,3a'RS)-spiro[tetrahydrofuro[3,4-d]pyrrolo[1,2-b]isoxazol-3(3aH),2'(3'H)-tetrahydropyrrolo[1,2-b]isoxazol]-1(8bH)-one

(3RS,3aRS,8aSR,8bSR,3a'RS)-spiro[tetrahydrofuro[3,4-d]pyrrolo[1,2-b]isoxazol-3(3aH),2'(3'H)-tetrahydropyrrolo[1,2-b]isoxazol]-1(8bH)-one

(RS,RS)-1,7-dioxa-dispiro[4.0.4.2]dodeca-3,9-diene-2,8-dione
508-44-1

(RS,RS)-1,7-dioxa-dispiro[4.0.4.2]dodeca-3,9-diene-2,8-dione

Conditions
ConditionsYield
In chloroform at 70℃; for 4h; Yield given. Further byproducts given. Title compound not separated from byproducts;A 50%
B n/a
C 16 mg
D 15%
protoanemonin
108-28-1

protoanemonin

(2RS,3a'SR)-3a',4',5',6'-tetrahydrospiro(furo-2(5H),2'(3'H)-pyrrolo[1,2-b]isoxazol)-5-one

(2RS,3a'SR)-3a',4',5',6'-tetrahydrospiro(furo-2(5H),2'(3'H)-pyrrolo[1,2-b]isoxazol)-5-one

(2RS,3a'RS)-3a',4',5',6'-tetrahydrospiro(furo-2(5H),2'(3'H)-pyrrolo[1,2-b]isoxazol)-5-one

(2RS,3a'RS)-3a',4',5',6'-tetrahydrospiro(furo-2(5H),2'(3'H)-pyrrolo[1,2-b]isoxazol)-5-one

(3RS,3aRS,8aSR,8bSR,3a'RS)-spiro[tetrahydrofuro[3,4-d]pyrrolo[1,2-b]isoxazol-3(3aH),2'(3'H)-tetrahydropyrrolo[1,2-b]isoxazol]-1(8bH)-one

(3RS,3aRS,8aSR,8bSR,3a'RS)-spiro[tetrahydrofuro[3,4-d]pyrrolo[1,2-b]isoxazol-3(3aH),2'(3'H)-tetrahydropyrrolo[1,2-b]isoxazol]-1(8bH)-one

(RS,RS)-1,7-dioxa-dispiro[4.0.4.2]dodeca-3,9-diene-2,8-dione
508-44-1

(RS,RS)-1,7-dioxa-dispiro[4.0.4.2]dodeca-3,9-diene-2,8-dione

Conditions
ConditionsYield
With 1-pyrroline N-oxide In chloroform at 70℃; for 4h; Further byproducts given;A 2%
B 50%
C 16 mg
D 15%
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