Products

Refine

Country

Business Type

Certificate

Display

Dayang Chem (Hangzhou) Co.,Ltd.

As a leading manufacturer and supplier of chemicals in China, DayangChem not only supply popular chemicals, but also DayangChem’s R&D center offer custom synthesis according to the contract research and development services for the fine chemicals, ph

(R)-beta-Methyl-gamma-butyrolactone

Cas:65284-00-6

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Qingdao Beluga Import and Export Co., LTD

(R)-BETA-METHYL-GAMMA-BUTYROLACTONE CAS:65284-00-6 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 quali

(R)-BETA-METHYL-GAMMA-BUTYROLACTONE CAS:65284-00-6

Cas:65284-00-6

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

2(3H)-Furanone,dihydro-4-methyl-, (4R)-

Cas:65284-00-6

Min.Order:1 Kilogram

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

(4R)-4-methyloxolan-2-one

Cas:65284-00-6

Min.Order:10 Gram

FOB Price: $100.0

Type:Lab/Research institutions

inquiry

Hangzhou Huarong Pharm Co., Ltd.

We Huarong Pharm can provide Customized Synthesis & Process R&D & APIs and intermediates Production & Quality Research & Registration Application, especially our GMP validation service which complies with SFDA, FDA, WHO and EU EMPA. O

(R)-BETA-METHYL-GAMMA-BUTYROLACTONE

Cas:65284-00-6

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Hangzhou J&H Chemical Co., Ltd.

J&H CHEM is one of China's leading providers of integrated fine chemical services including offering, research and development, Custom manufacturing business, as well as other Value-added customer services, for diversified range products of chemicals

(R)-BETA-METHYL-GAMMA-BUTYROLACTONE

Cas:65284-00-6

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.

2(3H)-Furanone,dihydro-4-methyl-, (4R)-

Cas:65284-00-6

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Xian Changyue Biological Technology Co., Ltd.

best seller Application:API

(R)-BETA-METHYL-GAMMA-BUTYROLACTONE

Cas:65284-00-6

Min.Order:0

Negotiable

Type:Manufacturers

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

2(3H)-Furanone,dihydro-4-methyl-, (4R)-

Cas:65284-00-6

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

DB BIOTECH CO., LTD

best seller Application:API

(R)-BETA-METHYL-GAMMA-BUTYROLACTONE

Cas:65284-00-6

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Hangzhou Fandachem Co.,Ltd

(R)-SS-METHYL-?-BUTYROLACTONECASAppearance:white crystalline powder Storage:Store in dry, dark and ventilated place Package:25KG drum Application:intermediate Transportation:by air, by sea, by express

(R)-SS-METHYL-?-BUTYROLACTONECAS

Cas:65284-00-6

Min.Order:0

Negotiable

Type:Other

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

(R)-BETA-METHYL-GAMMA-BUTYROLACTONE

Cas:65284-00-6

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

65284-00-6

Cas:65284-00-6

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Hebei Muhuang Technology Co., Ltd

best seller Application:API

(R)-BETA-METHYL-GAMMA-BUTYROLACTONE

Cas:65284-00-6

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

(R)-BETA-METHYL-GAMMA-BUTYROLACTONE

Cas:65284-00-6

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Shanghai Muse Health Tech Co., Ltd.

high quality besst price manufacturer impurity study CMC, CDMO Application:medical intermediate Port:ShangHai

(R)-BETA-METHYL-GAMMA-BUTYROLACTONE

Cas:65284-00-6

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

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

2(3H)-Furanone,dihydro-4-methyl-, (4R)-

Cas:65284-00-6

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Henan Bizhi Chemical Tech Co Ltd

, facing global High-tech pharmaceutical raw materials, high value-added new type intermediates fine chemicals custom synthesis, scale-up production and rare chemicals trade. We have experienced research staff, strong technical force, well-equippe

65284-00-6 (R)-BETA-METHYL-GAMMA-BUTYROLACTONE

Cas:65284-00-6

Min.Order:1 Kilogram

FOB Price: $1.0

Type:Trading Company

inquiry

Nanjing Raymon Biotech Co., Ltd.

2(3H)-Furanone,dihydro-4-methyl-, (4R)-Appearance:Off white to slight yellow solid Storage:Store in dry and cool condition Package:25kg or according to cutomer's demand Application:Chemical research/Pharmaceutical intermediates Transportation:By Sea,

2(3H)-Furanone,dihydro-4-methyl-, (4R)-

Cas:65284-00-6

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Hebei Ruishun Trade Co.,Ltd

Supply top quality products with a reasonable price Application:api

65284-00-6

Cas:65284-00-6

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Chemical Co.Ltd

Manufacturer,strong R&D,professional team Storage:Store in a cool, dry place. Store in a tightly closed container. Package:according to your requirement Application:ZhiShang Chemical is owned by ZhiShang Group, is a professional new-type chemicals en

2(3H)-Furanone,dihydro-4-methyl-, (4R)-

Cas:65284-00-6

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Mitsubishi Rayon Co., Ltd.

(R)-BETA-METHYL-GAMMA-BUTYROLACTONE

2(3H)-Furanone,dihydro-4-methyl-, (4R)-

Cas:65284-00-6

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Synthetic route

(R)-(+)-3-methyl-4-methoxymethyloxybutanenitrile
222539-30-2

(R)-(+)-3-methyl-4-methoxymethyloxybutanenitrile

(R)-3-methyl-γ-butyrolactone
65284-00-6

(R)-3-methyl-γ-butyrolactone

Conditions
ConditionsYield
With sulfuric acid In acetic acid for 1.5h; Heating;93%
1-(2-Methylpropyl) 4-hydrogen (S)-2-methylbutanedioate

1-(2-Methylpropyl) 4-hydrogen (S)-2-methylbutanedioate

A

(S)-3-methyl-4-butanolide
64190-48-3

(S)-3-methyl-4-butanolide

B

(R)-3-methyl-γ-butyrolactone
65284-00-6

(R)-3-methyl-γ-butyrolactone

Conditions
ConditionsYield
With lithium borohydride In tetrahydrofuran at 50℃; for 1h;A 69%
B n/a
methyl (S)-(+)-3-methyl-5-oxohexanoate
89393-67-9

methyl (S)-(+)-3-methyl-5-oxohexanoate

(R)-3-methyl-γ-butyrolactone
65284-00-6

(R)-3-methyl-γ-butyrolactone

Conditions
ConditionsYield
Stage #1: methyl (S)-(+)-3-methyl-5-oxohexanoate With 3-chloro-benzenecarboperoxoic acid In chloroform at 20℃; for 48h; Baeyer-Villager oxidation;
Stage #2: With potassium hydroxide In methanol for 4h; Heating;
Stage #3: With hydrogenchloride pH=3 - 4;
68%
(3R)-4-(tert-butyldimethylsilanyloxy)-3-methylbutyronitrile
172668-98-3

(3R)-4-(tert-butyldimethylsilanyloxy)-3-methylbutyronitrile

(R)-3-methyl-γ-butyrolactone
65284-00-6

(R)-3-methyl-γ-butyrolactone

Conditions
ConditionsYield
With sulfuric acid In acetic acid Heating;60%
(S)-3-Methyl-4-<(tetrahydropyranyl)oxy>butanenitrile
110171-23-8

(S)-3-Methyl-4-<(tetrahydropyranyl)oxy>butanenitrile

(R)-3-methyl-γ-butyrolactone
65284-00-6

(R)-3-methyl-γ-butyrolactone

Conditions
ConditionsYield
With hydrogenchloride In methanol for 7h; Heating;46%
Multi-step reaction with 2 steps
1: aq. HCl / methanol / 4 h / Heating
2: 32.0 g / aq. NaOH / 5 h / Heating
View Scheme
Multi-step reaction with 2 steps
1: aq. KOH / ethane-1,2-diol / 6 h / Heating
2: aq. HCl / 0.25 h / 100 °C
View Scheme
(R)-4-(iodomethyl)dihydrofuran-2(3H)-one
88557-21-5

(R)-4-(iodomethyl)dihydrofuran-2(3H)-one

(R)-3-methyl-γ-butyrolactone
65284-00-6

(R)-3-methyl-γ-butyrolactone

Conditions
ConditionsYield
With hydrogen; calcium carbonate; Raney Ni W-7 In ethanol for 0.5h; Ambient temperature;8.8%
methyl (R)-3-hydroxy-2-methylpropionate
72657-23-9

methyl (R)-3-hydroxy-2-methylpropionate

(R)-3-methyl-γ-butyrolactone
65284-00-6

(R)-3-methyl-γ-butyrolactone

(R)-3-Methyl-4-[((E)-propenyl)oxy]-butyraldehyde
132364-20-6, 132364-47-7, 132437-73-1, 132437-98-0

(R)-3-Methyl-4-[((E)-propenyl)oxy]-butyraldehyde

A

(S)-3-methyl-4-butanolide
64190-48-3

(S)-3-methyl-4-butanolide

B

(R)-3-methyl-γ-butyrolactone
65284-00-6

(R)-3-methyl-γ-butyrolactone

Conditions
ConditionsYield
Jones oxidation; Yield given. Yields of byproduct given. Title compound not separated from byproducts;
(R)-(+)-4-tert. butoxy-3-methylbutyric acid
60610-08-4

(R)-(+)-4-tert. butoxy-3-methylbutyric acid

A

(S)-3-methyl-4-butanolide
64190-48-3

(S)-3-methyl-4-butanolide

B

(R)-3-methyl-γ-butyrolactone
65284-00-6

(R)-3-methyl-γ-butyrolactone

Conditions
ConditionsYield
With toluene-4-sulfonic acid In benzene for 1.5h; Heating; Yield given. Title compound not separated from byproducts;
trans-(R)-2-Octen-4-ol
84621-55-6

trans-(R)-2-Octen-4-ol

(R)-3-methyl-γ-butyrolactone
65284-00-6

(R)-3-methyl-γ-butyrolactone

Conditions
ConditionsYield
Multistep reaction;
(R)-4-Hydroxy-3-methyl-N-((R)-1-phenyl-ethyl)-butyramide
90897-90-8

(R)-4-Hydroxy-3-methyl-N-((R)-1-phenyl-ethyl)-butyramide

(R)-3-methyl-γ-butyrolactone
65284-00-6

(R)-3-methyl-γ-butyrolactone

Conditions
ConditionsYield
With hydrogenchloride; potassium hydroxide Multistep reaction;
(2R,3S)-3,4,6-Trimethyl-2-phenyl-3,4,6,7-tetrahydro-2H-furo[3,2-f][1,4]oxazepin-5-one

(2R,3S)-3,4,6-Trimethyl-2-phenyl-3,4,6,7-tetrahydro-2H-furo[3,2-f][1,4]oxazepin-5-one

A

(S)-3-methyl-4-butanolide
64190-48-3

(S)-3-methyl-4-butanolide

B

(R)-3-methyl-γ-butyrolactone
65284-00-6

(R)-3-methyl-γ-butyrolactone

Conditions
ConditionsYield
In tetrahydrofuran at -100℃; Heating; Yield given. Yields of byproduct given. Title compound not separated from byproducts;
(R)-4-Hydroxy-3-methyl-butyric acid
108772-87-8

(R)-4-Hydroxy-3-methyl-butyric acid

(R)-3-methyl-γ-butyrolactone
65284-00-6

(R)-3-methyl-γ-butyrolactone

Conditions
ConditionsYield
With hydrogenchloride at 100℃; for 0.25h; Yield given;
(-)-ethyl (R)-(E)-3,6-dimethyl-4-heptenoate
92232-04-7

(-)-ethyl (R)-(E)-3,6-dimethyl-4-heptenoate

(R)-3-methyl-γ-butyrolactone
65284-00-6

(R)-3-methyl-γ-butyrolactone

Conditions
ConditionsYield
With sodium tetrahydroborate; ozone 1.) EtOH, CHCl3, -78 degC; Yield given. Multistep reaction;
(S)-4-Methyl-2-oxo-tetrahydro-furan-3-carboxylic acid
96540-43-1, 147139-95-5

(S)-4-Methyl-2-oxo-tetrahydro-furan-3-carboxylic acid

A

(S)-3-methyl-4-butanolide
64190-48-3

(S)-3-methyl-4-butanolide

B

(R)-3-methyl-γ-butyrolactone
65284-00-6

(R)-3-methyl-γ-butyrolactone

Conditions
ConditionsYield
at 180 - 200℃; Yield given. Yields of byproduct given. Title compound not separated from byproducts;
(R)-(+)-3-methyldihydrofuran-2,5-dione
83247-83-0

(R)-(+)-3-methyldihydrofuran-2,5-dione

A

(R)-3-methyl-γ-butyrolactone
65284-00-6

(R)-3-methyl-γ-butyrolactone

B

(R)-3-methyl-dihydro-furan-2-one
55254-35-8

(R)-3-methyl-dihydro-furan-2-one

Conditions
ConditionsYield
With hydrogen; magnesium sulfate; triethylamine; Ru2Cl4(DIOP)3 In toluene at 120℃; for 10h; Yield given. Title compound not separated from byproducts;
(R)-3-Methyl-4-(tetrahydro-pyran-2-yloxy)-butyramide

(R)-3-Methyl-4-(tetrahydro-pyran-2-yloxy)-butyramide

(R)-3-methyl-γ-butyrolactone
65284-00-6

(R)-3-methyl-γ-butyrolactone

Conditions
ConditionsYield
With sodium hydroxide for 5h; Cyclization; Lactonization; Hydrolysis; Heating;32.0 g
(R)-4-hydroxy-3-methyl-butyronitrile
217189-83-8

(R)-4-hydroxy-3-methyl-butyronitrile

(R)-3-methyl-γ-butyrolactone
65284-00-6

(R)-3-methyl-γ-butyrolactone

Conditions
ConditionsYield
Stage #1: (R)-4-hydroxy-3-methyl-butyronitrile With sodium hydroxide In ethanol Heating;
Stage #2: With toluene-4-sulfonic acid In benzene Heating;
(E)-4-hydroxy-3-methylbut-2-enoic acid
44647-19-0

(E)-4-hydroxy-3-methylbut-2-enoic acid

A

(S)-3-methyl-4-butanolide
64190-48-3

(S)-3-methyl-4-butanolide

B

(R)-3-methyl-γ-butyrolactone
65284-00-6

(R)-3-methyl-γ-butyrolactone

Conditions
ConditionsYield
Stage #1: (E)-4-hydroxy-3-methylbut-2-enoic acid With chiral ruthenium catalyst; hydrogen; 2,2'-bis-(diphenylphosphino)-1,1'-binaphthyl
Stage #2: With hydrogen cation Further stages.;
With Ru(OAc)2((R)-BINAP); hydrogen Title compound not separated from byproducts.;
4-methyl-2(5H)-furanone
6124-79-4

4-methyl-2(5H)-furanone

A

(S)-3-methyl-4-butanolide
64190-48-3

(S)-3-methyl-4-butanolide

B

(R)-3-methyl-γ-butyrolactone
65284-00-6

(R)-3-methyl-γ-butyrolactone

Conditions
ConditionsYield
With sodium tetrahydroborate; methyl-bis-((S)-4-phenyl-4,5-dihydro-oxazol-2-yl)-amine; cobalt(II) chloride In ethanol at 20℃; for 24h; Title compound not separated from byproducts;
With C32H12BF24(1-)*C37H44IrN2OP(1+); hydrogen In dichloromethane at 20℃; under 75007.5 Torr; for 24h; optical yield given as %ee; enantioselective reaction;
(R)-4-(tert-butyl-diphenyl-silanyloxy)-3-methyl-thiobutyric acid S-ethyl ester
917590-87-5

(R)-4-(tert-butyl-diphenyl-silanyloxy)-3-methyl-thiobutyric acid S-ethyl ester

(R)-3-methyl-γ-butyrolactone
65284-00-6

(R)-3-methyl-γ-butyrolactone

Conditions
ConditionsYield
With tetrabutyl ammonium fluoride In tetrahydrofuran for 5h;
With tetrabutyl ammonium fluoride In tetrahydrofuran
4-methyl-2(5H)-furanone
6124-79-4

4-methyl-2(5H)-furanone

(R)-3-methyl-γ-butyrolactone
65284-00-6

(R)-3-methyl-γ-butyrolactone

Conditions
ConditionsYield
With Glycine max p51 reductase; NADPH In phosphate buffer at 36℃; for 12h; pH=7.0;
(3R)-4-(tert-butyl-diphenyl-silanyloxy)-3-methyl-thiobutyric acid S-methyl ester

(3R)-4-(tert-butyl-diphenyl-silanyloxy)-3-methyl-thiobutyric acid S-methyl ester

(R)-3-methyl-γ-butyrolactone
65284-00-6

(R)-3-methyl-γ-butyrolactone

Conditions
ConditionsYield
With tetrabutyl ammonium fluoride
3-Methylbutenoic acid
541-47-9

3-Methylbutenoic acid

(R)-3-methyl-γ-butyrolactone
65284-00-6

(R)-3-methyl-γ-butyrolactone

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1.1: 45 percent / SeO2
2.1: H2; BINAP; chiral ruthenium catalyst
2.2: H(1+)
View Scheme
MOM ether of (S)-(+)-methyl 3-hydroxy-2-methylpropionate
105164-20-3

MOM ether of (S)-(+)-methyl 3-hydroxy-2-methylpropionate

(R)-3-methyl-γ-butyrolactone
65284-00-6

(R)-3-methyl-γ-butyrolactone

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1: 79 percent / LiAlH4 / diethyl ether / 4 h / Ambient temperature
2: 90 percent / pyridine / 0 - 5 °C
3: 90 percent / dimethylsulfoxide / 50 °C
4: 93 percent / aq. H2SO4 / aq. acetic acid / 1.5 h / Heating
View Scheme
(R)-(+)-2-methyl-3-methoxymethyloxypropan-1-ol
126308-33-6

(R)-(+)-2-methyl-3-methoxymethyloxypropan-1-ol

(R)-3-methyl-γ-butyrolactone
65284-00-6

(R)-3-methyl-γ-butyrolactone

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: 90 percent / pyridine / 0 - 5 °C
2: 90 percent / dimethylsulfoxide / 50 °C
3: 93 percent / aq. H2SO4 / aq. acetic acid / 1.5 h / Heating
View Scheme
(S)-(+)-2-methyl-3-methoxymethyloxypropan-1-yl tosylate
222539-28-8

(S)-(+)-2-methyl-3-methoxymethyloxypropan-1-yl tosylate

(R)-3-methyl-γ-butyrolactone
65284-00-6

(R)-3-methyl-γ-butyrolactone

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 90 percent / dimethylsulfoxide / 50 °C
2: 93 percent / aq. H2SO4 / aq. acetic acid / 1.5 h / Heating
View Scheme
(R)-(+)-3-methyldihydrofuran-2,5-dione
83247-83-0

(R)-(+)-3-methyldihydrofuran-2,5-dione

(R)-3-methyl-γ-butyrolactone
65284-00-6

(R)-3-methyl-γ-butyrolactone

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 1.) calcium sulfate hemihydrate, 2.) molecular sieves 4 Angstroem / 1.) dioxane, 22 deg C, 45 h, lipozyme from Mucor miehei, 2.) cyclohexane, 22 deg C, 43 h, Novozym 435 from Candida antarctica
2: LiBH4 / tetrahydrofuran / 1 h / 50 °C
View Scheme
Multi-step reaction with 2 steps
1: calcium sulfate hemihydrate / dioxane / 45 h / 22 °C / lipozyme from Mucor miehei
2: LiBH4 / tetrahydrofuran / 1 h / 50 °C
View Scheme
(R)-3-(tetrahydro-2-pyranyloxy)-2-methyl-1-propanol
88728-99-8

(R)-3-(tetrahydro-2-pyranyloxy)-2-methyl-1-propanol

(R)-3-methyl-γ-butyrolactone
65284-00-6

(R)-3-methyl-γ-butyrolactone

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: 95 percent / pyridine
2: 70 percent / dimethylsulfoxide / 48 h / Ambient temperature
3: 46 percent / conc. HCl / methanol / 7 h / Heating
View Scheme
(S)-3-(tetrahydro-2-pyranyloxy)-2-methylpropyl p-toluenesulfonate
88557-54-4, 96947-43-2

(S)-3-(tetrahydro-2-pyranyloxy)-2-methylpropyl p-toluenesulfonate

(R)-3-methyl-γ-butyrolactone
65284-00-6

(R)-3-methyl-γ-butyrolactone

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 70 percent / dimethylsulfoxide / 48 h / Ambient temperature
2: 46 percent / conc. HCl / methanol / 7 h / Heating
View Scheme
(R)-3-methyl-γ-butyrolactone
65284-00-6

(R)-3-methyl-γ-butyrolactone

4-bromo-3-methyl-butyric acid ethyl ester
56703-10-7

4-bromo-3-methyl-butyric acid ethyl ester

Conditions
ConditionsYield
With hydrogen bromide In ethanol for 16h; Ambient temperature;96%
With hydrogen bromide In ethanol
ethanol
64-17-5

ethanol

(R)-3-methyl-γ-butyrolactone
65284-00-6

(R)-3-methyl-γ-butyrolactone

ethyl (R)-(+)-4-bromo-3-methylbutanoate
89363-48-4

ethyl (R)-(+)-4-bromo-3-methylbutanoate

Conditions
ConditionsYield
With hydrogen bromide for 16h; Ambient temperature;96%
Isobutyl iodide
513-38-2

Isobutyl iodide

(R)-3-methyl-γ-butyrolactone
65284-00-6

(R)-3-methyl-γ-butyrolactone

(2R)-2,6-dimethylheptan-1-ol
59983-44-7

(2R)-2,6-dimethylheptan-1-ol

Conditions
ConditionsYield
Stage #1: Isobutyl iodide With tert.-butyl lithium In diethyl ether; pentane at -78 - 20℃;
Stage #2: (R)-3-methyl-γ-butyrolactone In diethyl ether; pentane at -78℃; for 3h; Further stages;
79%
1-Iodooctane
629-27-6

1-Iodooctane

(R)-3-methyl-γ-butyrolactone
65284-00-6

(R)-3-methyl-γ-butyrolactone

(R)-2-methyldodecan-1-ol
109034-03-9

(R)-2-methyldodecan-1-ol

Conditions
ConditionsYield
Stage #1: 1-Iodooctane With tert.-butyl lithium In diethyl ether; pentane at -78 - 20℃; for 1.5h;
Stage #2: (R)-3-methyl-γ-butyrolactone In diethyl ether; pentane at -78℃; for 3h; Further stages;
78%
(R)-3-methyl-γ-butyrolactone
65284-00-6

(R)-3-methyl-γ-butyrolactone

1-Iodohexane
638-45-9

1-Iodohexane

(R)-(+)-2-methyl-1-decanol
80698-14-2

(R)-(+)-2-methyl-1-decanol

Conditions
ConditionsYield
Stage #1: 1-Iodohexane With tert.-butyl lithium In diethyl ether; pentane at -78 - 20℃; for 1.5h;
Stage #2: (R)-3-methyl-γ-butyrolactone In diethyl ether; pentane at -78℃; for 3h; Further stages;
75%
(R)-3-methyl-γ-butyrolactone
65284-00-6

(R)-3-methyl-γ-butyrolactone

prenyl bromide
870-63-3

prenyl bromide

A

(2R,3R)-3-methyl-2-(3-methyl-2-butenyl)-4-butanolide
142746-33-6

(2R,3R)-3-methyl-2-(3-methyl-2-butenyl)-4-butanolide

B

(2S,3R)-3-methyl-2-(3-methyl-2-butenyl)-4-butanolide
142795-62-8

(2S,3R)-3-methyl-2-(3-methyl-2-butenyl)-4-butanolide

Conditions
ConditionsYield
With lithium diisopropyl amide 1) THF, -78 deg C, 1 h, 2) -78 deg C, 1 h; Yield given. Multistep reaction. Yields of byproduct given;
methyl cyanoformate
17640-15-2

methyl cyanoformate

(R)-3-methyl-γ-butyrolactone
65284-00-6

(R)-3-methyl-γ-butyrolactone

3(R)-carbomethoxy-4(R)-methyldihydro-2(3H)-furanone
115047-73-9

3(R)-carbomethoxy-4(R)-methyldihydro-2(3H)-furanone

Conditions
ConditionsYield
With lithium diisopropyl amide 1.) THF, -78 deg C, 1.5 h, 2.) THF, -78 deg C, 3h; Yield given. Multistep reaction;
eschenmoser's salt
33797-51-2

eschenmoser's salt

(R)-3-methyl-γ-butyrolactone
65284-00-6

(R)-3-methyl-γ-butyrolactone

(R)-3-Dimethylaminomethyl-4-methyl-dihydro-furan-2-one

(R)-3-Dimethylaminomethyl-4-methyl-dihydro-furan-2-one

Conditions
ConditionsYield
With lithium diisopropyl amide 1.) THF, hexane, -78 deg C, 1 h, 2.) THF, hexane, a) -78 deg C, 1 h, b) RT, overnight; Multistep reaction;
(R)-3-methyl-γ-butyrolactone
65284-00-6

(R)-3-methyl-γ-butyrolactone

(-)-(2E,4R)-5-methyl-2-hexen-4-ol
92283-72-2

(-)-(2E,4R)-5-methyl-2-hexen-4-ol

4(R)-methyl-5(R)-(1(S),4-dimethyl-2(E)-pentenyl)dihydro-2(3H)furanone
106237-56-3

4(R)-methyl-5(R)-(1(S),4-dimethyl-2(E)-pentenyl)dihydro-2(3H)furanone

Conditions
ConditionsYield
Multistep reaction;
(R)-3-methyl-γ-butyrolactone
65284-00-6

(R)-3-methyl-γ-butyrolactone

(-)-(2E,4R)-5-methyl-2-hexen-4-ol
92283-72-2

(-)-(2E,4R)-5-methyl-2-hexen-4-ol

A

(3R,4S)-3-((E)-(S)-1,4-Dimethyl-pent-2-enyl)-4-methyl-dihydro-furan-2-one
106237-50-7, 106356-22-3, 106356-23-4, 106356-24-5, 110455-54-4, 110455-55-5, 115115-38-3, 122292-21-1

(3R,4S)-3-((E)-(S)-1,4-Dimethyl-pent-2-enyl)-4-methyl-dihydro-furan-2-one

B

4(R)-methyl-3(R)-(1(S),4-dimethyl-2(E)-pentenyl)dihydro-2(3H)-furanone
110455-54-4

4(R)-methyl-3(R)-(1(S),4-dimethyl-2(E)-pentenyl)dihydro-2(3H)-furanone

C

4(S)-methyl-3(S)-(1(S),4-dimethyl-2(E)-pentenyl)dihydro-2(3H)-furanone
106237-50-7

4(S)-methyl-3(S)-(1(S),4-dimethyl-2(E)-pentenyl)dihydro-2(3H)-furanone

D

4(R)-methyl-3(S)-(1(S),4-dimethyl-2(E)-pentenyl)dihydro-2(3H)-furanone
110455-55-5

4(R)-methyl-3(S)-(1(S),4-dimethyl-2(E)-pentenyl)dihydro-2(3H)-furanone

Conditions
ConditionsYield
In toluene at 110℃; for 48h; Product distribution; Mechanism; investigation of the steric course Claisen rearrangements of lactone;
With acid In toluene at 110℃; for 48h; Yield given. Yields of byproduct given. Title compound not separated from byproducts;
(R)-3-methyl-γ-butyrolactone
65284-00-6

(R)-3-methyl-γ-butyrolactone

trans-(R)-2-Octen-4-ol
84621-55-6

trans-(R)-2-Octen-4-ol

(3R,4S)-4-Methyl-3-((E)-(S)-1-methyl-hept-2-enyl)-dihydro-furan-2-one
84564-83-0, 97277-06-0, 97277-07-1, 97277-08-2

(3R,4S)-4-Methyl-3-((E)-(S)-1-methyl-hept-2-enyl)-dihydro-furan-2-one

Conditions
ConditionsYield
With potassium tert-butylate; tert-butyl alcohol; Trimethylacetic acid 1) toluene, reflux, 2 d, 2) Et2O, 3 h, 25 degC; Yield given. Multistep reaction;
(R)-3-methyl-γ-butyrolactone
65284-00-6

(R)-3-methyl-γ-butyrolactone

trans-(R)-2-Octen-4-ol
84621-55-6

trans-(R)-2-Octen-4-ol

A

4(R)-methyl-3(R)-(1(S)-methyl-2(E)-heptenyl)dihydro-2(3H)-furanone
97277-06-0

4(R)-methyl-3(R)-(1(S)-methyl-2(E)-heptenyl)dihydro-2(3H)-furanone

B

4(R)-methyl-3(S)-(1(S)-methyl-2(E)-heptenyl)dihydro-2(3H)-furanone
97277-07-1

4(R)-methyl-3(S)-(1(S)-methyl-2(E)-heptenyl)dihydro-2(3H)-furanone

Conditions
ConditionsYield
Multistep reaction. Title compound not separated from byproducts;
(R)-3-methyl-γ-butyrolactone
65284-00-6

(R)-3-methyl-γ-butyrolactone

trans-(R)-2-Octen-4-ol
84621-55-6

trans-(R)-2-Octen-4-ol

4(R)-methyl-3(S)-(1(S)-methyl-2(E)-heptenyl)dihydro-2(3H)-furanone
97277-07-1

4(R)-methyl-3(S)-(1(S)-methyl-2(E)-heptenyl)dihydro-2(3H)-furanone

Conditions
ConditionsYield
Multistep reaction. Title compound not separated from byproducts;

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