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
Cas:2453-03-4
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Type:Manufacturers
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inquiryHello, 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 email in time prod
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Min.Order:1 Kilogram
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Cas:2453-03-4
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inquiryOur Advantage: high quality with competitive price High quality standard: BP/USP/EP Enterprise standard All purity customized Fast and safe delivery We have reliable forwarder who can help us deliver our goods more fast and safe. We
Cas:2453-03-4
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inquiry1.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
Our company has been in existence for 10 years since its establishment. We have our own unique team. The company integrates independent research and development, production and sales. We have established famous brands at home and abroad. At prese
Cas:2453-03-4
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inquiry1,3-Dioxan-2-one CAS:2453-03-4 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 intermedi
Cas:2453-03-4
Min.Order:1 Gram
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inquiryHenan 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
A substitute for perfluorooctanoic acid, mainly used as a surfactant, dispersant, additive, etc Appearance:White solid or Colorless liquid Purity:99.3 % We will ship the goods in a timely manner as required We can provide relevant documents acc
Cas:2453-03-4
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inquiryThe 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
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
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
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Min.Order:10 Gram
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Type:Lab/Research institutions
inquiryOur Advantages A. International Top level TechnologyOur company owned biomedicine experts are famous at home and abroad with rich experience in research and development in the field of efficient chiral functional molecules research and development an
1,3-Dioxan-2-one Basic information Product Name: 1,3-Dioxan-2-one Synonyms: 1,3-Dioxan-2-one;1,3-Propylene carbonate;1,3-Propanediol cyclic carbonate;Carbonic acid 1,3-propanediyl ester;trimethylene carbonate1,3-Dioxan-2-one;1,3-Dioxan-2-one&
factory?direct?saleAppearance:White Powder Storage:Store In Dry, Cool And Ventilated Place Package:25kg/drum, also according to the clients requirement Application:It is widely used as a thickener, emulsifier and stabilizer Transportation:By Sea Or B
Cas:2453-03-4
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Type:Trading Company
inquiryProduct name:TMC CAS No.:2453-03-4 Molecule Formula:C4H6O3 Molecule Weight:102.09 Purity: 99.5% Package:1kg/bag Description:White substance Manufacture Standards:Enterprise Standard TESTING ITEMS
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
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Min.Order:1 Kilogram
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inquiryShandong Mopai Biotechnology 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 chemicals. W
Cas:2453-03-4
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
inquiry1.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
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We are a Union of chemistry in China, consists of chemists,engineers, laboratories,factories in China. We organize surplus capacity of R&D and production as well as custom synthesis for chemical products and chemical business project. We are supp
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Min.Order:1 Metric Ton
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inquiry1, High quality with competitive price:2, Fast and safe delivery3.Excellent pre-sales and after-sales service4. Well-trained and professional technologist and sales with rich experience in the field for 5-10 yearsAppearance:see detailed specification
Our company was built in 2009 with an ISO certificate.In the past 5 years, we have grown up as a famous fine chemicals supplier in China and we had established stable business relationships with Samsung,LG,Merck,Thermo Fisher Scientific and so on.O
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Min.Order:1 Kilogram
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inquiryhigh purity lowest priceAppearance:solid or liquid Storage:in sealed air resistant place Package:drum and bag Application:for pharma use Transportation:by sea or air Port:Beijing or Guangzhou
R & D enterprises have their own stock in stock Package:1kg Application:pharmaceutical intermediates
Acmec is a leading manufacturer and supplier of biochemical reagents and life science products. We have over 40,000 items in stock (real-time inventory) and offer discounted prices to registered members of the online store ( www.acmec.com.cn ) Appea
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Min.Order:1 bottle
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Type:Lab/Research institutions
inquiryAnsciep 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
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Conditions | Yield |
---|---|
With bis(acetylacetonate)oxovanadium; tetrabutylammomium bromide In toluene at 60℃; under 26252.6 Torr; for 8h; Autoclave; Cooling with ice; chemoselective reaction; | 100% |
tetraphenyl stibonium iodide at 100℃; under 36775.4 Torr; for 4h; Product distribution; Var. catalysts, solvents, time and temp.; | 96% |
tetraphenyl stibonium iodide at 100℃; under 36775.4 Torr; for 4h; Var. catalysts, solvents, time and temp.; | 96% |
4-(trifluoromethoxy)benzonitrile
trimethyleneglycol
trimethylene carbonate
Conditions | Yield |
---|---|
With 3,7-di([1,1′-biphenyl]-4-yl)-10-(naphthalen-1-yl)-10H-phenoxazine; N-ethyl-N,N-diisopropylamine In acetonitrile at 20℃; for 24h; Reagent/catalyst; Inert atmosphere; Irradiation; Sealed tube; | 99% |
Conditions | Yield |
---|---|
With caesium carbonate In N,N-dimethyl-formamide at 40℃; under 760.051 Torr; for 15h; Reagent/catalyst; Temperature; Inert atmosphere; Glovebox; Green chemistry; | 95% |
With 1,3,4,6,7,8-hexahydro-2H-pyrimido[1,2-a]pyrimidine; caesium carbonate In N,N-dimethyl-formamide at 40℃; under 760.051 Torr; for 15h; Concentration; Temperature; Glovebox; Inert atmosphere; | 95 %Spectr. |
With 1,8-diazabicyclo[5.4.0]undec-7-ene In dimethyl sulfoxide at 20℃; |
Conditions | Yield |
---|---|
With tetrabutylammomium bromide; C14H8O5(2-)*Co(2+)*0.5C24H30N4 at 20℃; under 11251.1 Torr; for 30h; High pressure; | 90% |
Conditions | Yield |
---|---|
With ZnLa2O4 In neat liquid at 150℃; under 15.0015 Torr; Catalytic behavior; Reagent/catalyst; Time; | 80.5% |
With 1-hexadecyl-3-methylimidazolium chloride; zinc(II) chloride In neat (no solvent) at 160℃; under 112.511 Torr; for 3h; Green chemistry; | 72.3% |
With zinc(II) chloride In 1,1,2,2-tetrachloroethane at 146℃; for 24h; Temperature; Solvent; Inert atmosphere; | 12 %Chromat. |
Conditions | Yield |
---|---|
With sodium butanolate Reagent/catalyst; | 80% |
Conditions | Yield |
---|---|
With 2-Cyanopyridine; cerium(IV) oxide at 129.84℃; under 37503.8 Torr; for 12h; Autoclave; | 79% |
With 2-Cyanopyridine; cerium(IV) oxide at 140℃; under 60006 Torr; for 1h; Autoclave; | |
With 2-Cyanopyridine; cerium(IV) oxide at 140℃; under 60006 Torr; for 1h; Autoclave; |
Conditions | Yield |
---|---|
With air; potassium iodide; palladium(II) iodide In ISOPROPYLAMIDE at 100℃; under 15201 Torr; for 15h; Autoclave; | 74% |
With oxygen; potassium iodide; palladium(II) iodide In N,N-dimethyl acetamide at 100℃; under 15201 Torr; for 15h; | 74% |
With (neocuproine)Pd(OAc)2; sode de l'acide trichloroisocyanurique In acetonitrile at 35℃; under 1794.37 Torr; for 18h; | 38% |
Conditions | Yield |
---|---|
With triethylamine In tetrahydrofuran | 70% |
Stage #1: chloroformic acid ethyl ester; trimethyleneglycol In tetrahydrofuran for 1h; Cooling with ice; Stage #2: With triethylamine In tetrahydrofuran at 20℃; for 2h; | 43% |
With triethylamine In tetrahydrofuran at 0 - 20℃; for 2h; | 21% |
Conditions | Yield |
---|---|
With sodium n-propoxide Reagent/catalyst; | 68% |
Conditions | Yield |
---|---|
tributyltin chloride In N,N-dimethyl-formamide at 60℃; for 8h; | 66% |
Conditions | Yield |
---|---|
With sodium ethanolate Reagent/catalyst; | 62% |
With sodium methylate at 100 - 170℃; | 30% |
With sodium at 170℃; Entfernen des entstehenden Aethanols; | |
With sodium methylate at 160℃; Entfernen des entstehenden Aethanols; | |
With stannous octoate at 160℃; for 8h; |
2-ethoxy-1,3-dioxane
Bromoform
A
trimethylene carbonate
B
ethyl bromide
C
3-Brompropylformiat
D
acetaldehyde
F
1,1-dibromomethane
Conditions | Yield |
---|---|
dibenzoyl peroxide at 100℃; for 2h; Rate constant; Product distribution; other temperature; | A n/a B n/a C n/a D n/a E 60% F n/a |
Bromoform
A
trimethylene carbonate
B
1-bromo-hexane
C
3-Brompropylformiat
D
hexanal
F
1,1-dibromomethane
Conditions | Yield |
---|---|
dibenzoyl peroxide at 100℃; for 2h; Rate constant; Product distribution; other temperature; | A n/a B n/a C n/a D n/a E 56% F n/a |
Conditions | Yield |
---|---|
Stage #1: 1,1'-carbonyldiimidazole; trimethyleneglycol at 20℃; Stage #2: With acetic acid Reflux; | 53% |
carbonic acid dimethyl ester
trimethyleneglycol
A
trimethylene carbonate
B
propane-1,3-diyl dimethyl dicarbonate
Conditions | Yield |
---|---|
at 120℃; for 1h; Molecular sieve; | A 7.6% B 46% C 46.3% |
With Novozym435 at 60℃; for 7h; Kinetics; Time; Molecular sieve; Enzymatic reaction; |
Conditions | Yield |
---|---|
Stage #1: carbonic acid dimethyl ester; trimethyleneglycol With Novozym435 at 60℃; for 7h; Molecular sieve; Enzymatic reaction; Stage #2: at 90℃; for 40h; chemoselective reaction; | 43.2% |
With sodium at 79.84 - 169.84℃; |
Conditions | Yield |
---|---|
With sodium isopropylate Reagent/catalyst; | 25% |
Conditions | Yield |
---|---|
tricyclohexylphosphine In toluene at 110℃; under 26252.6 Torr; for 24h; | A 21.1% B 79 % Spectr. |
Conditions | Yield |
---|---|
tetrabutylammomium bromide In toluene at 110℃; under 26252.6 Torr; for 24h; | A 11.7% B 88.2 % Spectr. |
Conditions | Yield |
---|---|
(Ph3P)2NCl In toluene at 110℃; under 26252.6 Torr; for 24h; | A 5.9% B 94 % Spectr. |
Conditions | Yield |
---|---|
(salen)Cr(III)Cl; (Ph3P)2NN3 In toluene at 110℃; under 26252.6 Torr; for 24h; | A 2.3% B 97.6 % Spectr. |
2,2-diphenoxy-1,3-dioxane
trimethylene carbonate
Conditions | Yield |
---|---|
With hydrogenchloride In [D3]acetonitrile; water-d2 |
1,3-Bis(1,3-dioxan-2-yloxy)propane
A
trimethylene carbonate
B
propyl methanoate
C
2-propoxy-1,3-dioxane
D
3-([1,3]Dioxan-2-yloxy)-propionaldehyde
E
propyl 3-(1,3-dioxan-2-yloxy)propyl carbonate
Conditions | Yield |
---|---|
With di-tert-butyl peroxide at 130℃; for 0.5h; Product distribution; | A 0.02 mol B 0.01 mol C 0.02 mol D 0.01 mol E 0.06 mol |
2,2-Dimethoxy-1,3-dioxan
A
trimethylene carbonate
Conditions | Yield |
---|---|
With hydrogenchloride In [D3]acetonitrile; water-d2 |
2-propoxy-1,3-dioxane
A
trimethylene carbonate
B
propane
C
propyl methanoate
D
Dipropyl carbonate
E
propionaldehyde
Conditions | Yield |
---|---|
With di-tert-butyl peroxide In chlorobenzene at 130℃; Product distribution; Rate constant; Mechanism; |
Conditions | Yield |
---|---|
With dmap In acetonitrile at 20℃; cyclocondensation; | 88 % Spectr. |
phosgene
1,2-dichloro-ethane
trimethyleneglycol
trimethylene carbonate
Conditions | Yield |
---|---|
In 1,2-dichloro-ethane |
trimethylene carbonate
Conditions | Yield |
---|---|
With [Sm{Ph2NC(NCy)2}3]*2C7H8 In toluene at 60℃; for 0.5h; | 100% |
Conditions | Yield |
---|---|
With hydrazine hydrate In ethanol for 18h; Heating; | 99% |
Conditions | Yield |
---|---|
With [carbonylchlorohydrido{bis[2-(diphenylphosphinomethyl)ethyl]amino}ethylamino] ruthenium(II); potassium tert-butylate; hydrogen In tetrahydrofuran at 140℃; under 38002.6 Torr; for 2h; Pressure; Autoclave; | 99% |
With zinc bis(2,4-pentanedionate) monohydrate In benzene at 70℃; for 3h; Inert atmosphere; |
trimethylene carbonate
4,4,5,5-tetramethyl-[1,3,2]-dioxaboralane
4,4,5,5,4',4',5',5'-octamethyl-2,2'-propane-1,3-diyldioxy-bis-[1,3,2]dioxaborolane
Conditions | Yield |
---|---|
With manganese(II) triflate bis-acetonitrile solvate; potassium tert-butylate In benzene-d6 at 20℃; for 3h; Inert atmosphere; Glovebox; | 99% |
With C42H50Mg2N4 for 6h; | 98 %Spectr. |
With dibutylmagnesium In n-heptane; (2)H8-toluene at 85℃; for 6h; | > 95 %Spectr. |
With tris(bis(trimethylsilyl)amido)lanthanum(III) In neat (no solvent) at 25℃; for 0.333333h; chemoselective reaction; | 99 %Spectr. |
In tetrahydrofuran at 25℃; for 2h; Inert atmosphere; |
Conditions | Yield |
---|---|
With tin(II) octanoate for 4h; Heating; | 95% |
Conditions | Yield |
---|---|
at 60℃; for 12h; | 95% |
trimethylene carbonate
Conditions | Yield |
---|---|
With [Yb{Ph2NC(NCy)2}3]*2C7H8 In toluene at 60℃; for 0.5h; | 94.4% |
trimethylene carbonate
D,L-lactide
poly(D,L-lactide-co-trimethylene carbonate)-methylated poly(ethylene glycol) (MW: 2000 g/ml), molar ratio of D,L-lactide:trimethyl carbonate 28.8:71.2, Mw/Mn = 1.13
Conditions | Yield |
---|---|
With stannous octoate at 160℃; for 24h; | 94.1% |
trimethylene carbonate
D,L-lactide
poly(D,L-lactide-co-trimethylene carbonate)-methylated poly(ethylene glycol) (MW: 2000 g/ml), molar ratio of D,L-lactide:trimethyl carbonate 13.2:86.8, Mw/Mn = 1.12
Conditions | Yield |
---|---|
With stannous octoate at 160℃; for 24h; | 93.8% |
hexahydro-2H-oxepin-2-one
trimethylene carbonate
Tetraethylene glycol
L,L-dilactide
polymer, A-B-A triblock copolymer, Mn 22000 Da, Mw 27000 Da by SEC, Mn 18000 Da by NMR, inherent viscosity at 20 deg C in CH2Cl2 (2g/l) 0.260 dl/g; monomer(s): ε-caprolactone; trimethylene carbonate; tetra(ethylene glycol); L-lactide
Conditions | Yield |
---|---|
Stage #1: hexahydro-2H-oxepin-2-one; trimethylene carbonate; Tetraethylene glycol With bismuth(III) n-hexanoate In chlorobenzene at 120℃; for 24h; Stage #2: L,L-dilactide In chlorobenzene at 120℃; for 24h; Further stages.; | 92% |
hexahydro-2H-oxepin-2-one
trimethylene carbonate
Tetraethylene glycol
L,L-dilactide
polymer, A-B-A triblock copolymer, Mn 13000 Da, Mw 15000 Da by SEC, Mn 9800 Da by NMR, inherent viscosity at 20 deg C in CH2Cl2 (2g/l) 0.180 dl/g; monomer(s): ε-caprolactone; trimethylene carbonate; tetra(ethylene glycol); L-lactide
Conditions | Yield |
---|---|
Stage #1: hexahydro-2H-oxepin-2-one; trimethylene carbonate; Tetraethylene glycol With bismuth(III) n-hexanoate In chlorobenzene at 120℃; for 24h; Stage #2: L,L-dilactide In chlorobenzene at 120℃; for 24h; Further stages.; | 91% |
trimethylene carbonate
D,L-lactide
poly(D,L-lactide-co-trimethylene carbonate)-methylated poly(ethylene glycol) (MW: 2000 g/ml), molar ratio of D,L-lactide:trimethyl carbonate 29.1:70.9, Mw/Mn = 1.03
Conditions | Yield |
---|---|
With stannous octoate at 160℃; for 24h; | 89.7% |
trimethylene carbonate
D,L-lactide
poly(D,L-lactide-co-trimethylene carbonate)-methylated poly(ethylene glycol) (MW: 2000 g/ml), molar ratio of D,L-lactide:trimethyl carbonate 33.2:66.8, Mw/Mn = 1.15
Conditions | Yield |
---|---|
With stannous octoate at 160℃; for 24h; | 89.7% |
trimethylene carbonate
D,L-lactide
poly(D,L-lactide-co-trimethylene carbonate)-methylated poly(ethylene glycol) (MW: 2000 g/ml), molar ratio of D,L-lactide:trimethyl carbonate 33.3:66.7, Mw/Mn = 1.20
Conditions | Yield |
---|---|
With stannous octoate at 160℃; for 24h; | 89.7% |
hexahydro-2H-oxepin-2-one
trimethylene carbonate
Tetraethylene glycol
L,L-dilactide
polymer, A-B-A triblock copolymer, Mn 21000 Da, Mw 26000 Da by SEC, Mn 15800 Da by NMR, inherent viscosity at 20 deg C in CH2Cl2 (2g/l) 0.255 dl/g; monomer(s): ε-caprolactone; trimethylene carbonate; tetra(ethylene glycol); L-lactide
Conditions | Yield |
---|---|
Stage #1: hexahydro-2H-oxepin-2-one; trimethylene carbonate; Tetraethylene glycol With bismuth(III) n-hexanoate In chlorobenzene at 120℃; for 24h; Stage #2: L,L-dilactide In chlorobenzene at 120℃; for 24h; Further stages.; | 89% |
Conditions | Yield |
---|---|
With tetrabutyl ammonium fluoride In N,N-dimethyl-formamide at 180℃; for 6h; Inert atmosphere; Schlenk technique; | 88% |
trimethylene carbonate
D,L-lactide
poly(D,L-lactide-co-trimethylene carbonate)-methylated poly(ethylene glycol) (MW: 2000 g/ml), molar ratio of D,L-lactide:trimethyl carbonate 82.1:17.9, Mw/Mn = 1.16
Conditions | Yield |
---|---|
With stannous octoate at 160℃; for 24h; | 87.8% |
trimethylene carbonate
D,L-lactide
poly(D,L-lactide-co-trimethylene carbonate)-methylated poly(ethylene glycol) (MW: 2000 g/ml), molar ratio of D,L-lactide:trimethyl carbonate 58.6:41.4, Mw/Mn = 1.19
Conditions | Yield |
---|---|
With stannous octoate at 160℃; for 24h; | 86.5% |
trimethylene carbonate
Conditions | Yield |
---|---|
With [Nd{Ph2NC(NCy)2}3]*2C7H8 In toluene at 40℃; for 0.5h; | 85.65% |
trimethylene carbonate
D,L-lactide
poly(D,L-lactide-co-trimethylene carbonate)-methylated poly(ethylene glycol) (MW: 2000 g/ml), molar ratio of D,L-lactide:trimethyl carbonate 35.1:64.9, Mw/Mn = 1.05
Conditions | Yield |
---|---|
With stannous octoate at 160℃; for 24h; | 85.5% |
hexahydro-2H-oxepin-2-one
trimethylene carbonate
Tetraethylene glycol
L,L-dilactide
polymer, A-B-A triblock copolymer, Mn 13000 Da, Mw 16000 Da by SEC, Mn 11000 Da by NMR, inherent viscosity at 20 deg C in CH2Cl2 (2g/l) 0.205 dl/g; monomer(s): ε-caprolactone; trimethylene carbonate; tetra(ethylene glycol); L-lactide
Conditions | Yield |
---|---|
Stage #1: hexahydro-2H-oxepin-2-one; trimethylene carbonate; Tetraethylene glycol With bismuth(III) n-hexanoate In chlorobenzene at 120℃; for 24h; Stage #2: L,L-dilactide In chlorobenzene at 120℃; for 24h; Further stages.; | 82% |
Conditions | Yield |
---|---|
With scandium tris(2,6-di-tert-butyl-4-methylphenolate) In toluene at 100℃; for 8h; | 80.1% |
hexahydro-2H-oxepin-2-one
trimethylene carbonate
poly(ε-caprolactone-ran-trimethylene carbonate), Mn 2.72E4 by GPC, PDI 2.06, 59.2 percent diads of caprolactone-caprolactone, 23.8 percent diads of trimethylene carbonate-trimethylene carbonate; monomer(s): ε-caprolactone; trimethylene carbonate
Conditions | Yield |
---|---|
With scandium tris(2,6-di-tert-butyl-4-methylphenolate) In toluene at 0℃; for 12h; | 80% |
Conditions | Yield |
---|---|
With (bis[(2-diisopropylphosphino)ethyl]amine)Mn(CO)2Br; hydrogen; sodium t-butanolate In tetrahydrofuran at 120℃; under 22502.3 Torr; for 26h; Schlenk technique; Glovebox; Autoclave; | A 75% B 80% |
With [carbonylchlorohydrido{bis[2-(diphenylphosphinomethyl)ethyl]amino}ethylamino] ruthenium(II); potassium tert-butylate; hydrogen In tetrahydrofuran at 140℃; for 2h; Autoclave; | A 99 %Chromat. B 99 %Chromat. |
With hydrogen In tetrahydrofuran at 159.84℃; under 45004.5 Torr; for 10h; |
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