rac-1,2,3,4-diepoxybutane
Conditions | Yield |
---|---|
With potassium hydroxide In diethyl ether; water at 20℃; for 1h; | 97% |
meso-erythritol
A
meso-1,2,3,4-diepoxybutane
rac-1,2,3,4-diepoxybutane
Conditions | Yield |
---|---|
Stage #1: meso-erythritol With pyridine; p-toluenesulfonyl chloride at 3 - 7℃; for 16h; Stage #2: With potassium hydroxide In dichloromethane for 2.5h; | A 37% B n/a |
Conditions | Yield |
---|---|
With Perbenzoic acid; chloroform | |
With manganese(II) sulfate; dihydrogen peroxide; sodium oxalate; oxalic acid; N,N',N''-trimethyl-1,4,7-triazacyclononane In acetonitrile at 4.9℃; for 1h; Yield given. Yields of byproduct given. Title compound not separated from byproducts; | |
With 3,3-dimethyldioxirane In acetone at -15℃; for 2.5h; Title compound not separated from byproducts; |
Conditions | Yield |
---|---|
With potassium hydroxide; diethyl ether dianhydride of inactive cleavable erythritol; |
Conditions | Yield |
---|---|
With potassium hydroxide |
rac-1,2,3,4-diepoxybutane
Conditions | Yield |
---|---|
With potassium hydroxide |
Conditions | Yield |
---|---|
With rongalite; potassium carbonate In N,N-dimethyl-formamide at 20℃; for 0.5h; regioselective reaction; | 94% |
Conditions | Yield |
---|---|
With copper(l) iodide In tetrahydrofuran at -30℃; for 1h; | 93% |
With copper(I) bromide In tetrahydrofuran at -30 - 0℃; for 2h; | 72% |
Conditions | Yield |
---|---|
With rongalite; potassium carbonate In N,N-dimethyl-formamide at 20℃; for 0.5h; regioselective reaction; | 93% |
Conditions | Yield |
---|---|
With copper(l) iodide In diethyl ether at -30℃; for 1h; | 86% |
4-(tert-butyldimethylsilyloxy)-1-butyne
rac-1,2,3,4-diepoxybutane
Conditions | Yield |
---|---|
Stage #1: 4-(tert-butyldimethylsilyloxy)-1-butyne With Schwartz's reagent at 20℃; for 0.25h; Stage #2: With methyllithium; thien-2-yl(cyano)copper lithium In tetrahydrofuran; diethyl ether at -78℃; for 0.25h; Stage #3: rac-1,2,3,4-diepoxybutane In tetrahydrofuran; diethyl ether at 0℃; for 3h; | 85% |
Conditions | Yield |
---|---|
Stage #1: methyllithium With thien-2-yl(cyano)copper lithium In tetrahydrofuran at -78 - 0℃; Stage #2: rac-1,2,3,4-diepoxybutane In tetrahydrofuran at 0℃; for 3h; | 82% |
n-butyllithium
rac-1,2,3,4-diepoxybutane
Conditions | Yield |
---|---|
Stage #1: n-butyllithium With thien-2-yl(cyano)copper lithium In tetrahydrofuran at -78 - 0℃; Stage #2: rac-1,2,3,4-diepoxybutane In tetrahydrofuran at 0℃; for 3h; | 79% |
Conditions | Yield |
---|---|
With pyridine In diethyl ether; dichloromethane a) RT, 16 h, 2.) 50 deg C, 3 h; | 75% |
Conditions | Yield |
---|---|
Stage #1: trimethylsilylacetylene With n-butyllithium In tetrahydrofuran; hexane at -78 - 0℃; for 1h; Stage #2: With boron trifluoride diethyl etherate In tetrahydrofuran; hexane at -78℃; for 0.25h; Stage #3: rac-1,2,3,4-diepoxybutane In tetrahydrofuran; hexane at -78℃; for 5h; | 71% |
Conditions | Yield |
---|---|
Stage #1: n-octyne With Schwartz's reagent at 20℃; for 0.25h; Stage #2: With methyllithium; thien-2-yl(cyano)copper lithium In tetrahydrofuran; diethyl ether at -78℃; for 0.25h; Stage #3: rac-1,2,3,4-diepoxybutane In tetrahydrofuran; diethyl ether at 0℃; for 3h; | 70% |
methylmagnesium bromide
rac-1,2,3,4-diepoxybutane
trans-hexane-1,2-diol
Conditions | Yield |
---|---|
With copper(l) iodide In tetrahydrofuran; diethyl ether at 0 - 20℃; for 2h; | 59% |
rac-1,2,3,4-diepoxybutane
Conditions | Yield |
---|---|
With sodium hydrogen selenide at 20℃; for 0.166667h; | 55% |
rac-1,2,3,4-diepoxybutane
Conditions | Yield |
---|---|
In tetrahydrofuran at -78 - 0℃; | 50% |
rac-1,2,3,4-diepoxybutane
A
(S,S)-diepoxybutane
B
(R,R)-butane-1,2:3,4-bisoxide
Conditions | Yield |
---|---|
With (S,S)-[N,N-bis(3,5-di-tert-butylsalicylidene)-1,2-cyclohexane-diamino]cobalt(III) acetate; water at 0 - 20℃; | A n/a B n/a C 36% |
rac-1,2,3,4-diepoxybutane
A
(S,S)-diepoxybutane
B
(R,R)-butane-1,2:3,4-bisoxide
Conditions | Yield |
---|---|
With [(R,R)-N,N'-bis(3,5-di-tert-butylsalicylidene)-1,2-cyclohexanediaminato(2-)]cobalt(III) acetate; water In tetrahydrofuran at 0 - 20℃; | A n/a B n/a C 36% |
rac-1,2,3,4-diepoxybutane
A
(S,S)-diepoxybutane
Conditions | Yield |
---|---|
With [(R,R)-N,N'-bis(3,5-di-tert-butylsalicylidene)-1,2-cyclohexanediaminato(2-)]cobalt(III) acetate; water at 0 - 20℃; | A 36% B n/a C n/a |
rac-1,2,3,4-diepoxybutane
A
(R,R)-butane-1,2:3,4-bisoxide
Conditions | Yield |
---|---|
With (S,S)-[N,N-bis(3,5-di-tert-butylsalicylidene)-1,2-cyclohexane-diamino]cobalt(III) acetate; water at 0 - 20℃; | A 36% B n/a C n/a |
rac-1,2,3,4-diepoxybutane
A
(S,S)-diepoxybutane
Conditions | Yield |
---|---|
With [(R,R)-N,N'-bis(3,5-di-tert-butylsalicylidene)-1,2-cyclohexanediaminato(2-)]cobalt(III) acetate; water at 0 - 20℃; | A 36% B n/a |
With [(R,R)-N,N'-bis(3,5-di-tert-butylsalicylidene)-1,2-cyclohexanediaminato(2-)]cobalt(III) acetate; water In tetrahydrofuran at 0 - 20℃; | A n/a B 36% |
rac-1,2,3,4-diepoxybutane
A
(R,R)-butane-1,2:3,4-bisoxide
Conditions | Yield |
---|---|
With (S,S)-[N,N-bis(3,5-di-tert-butylsalicylidene)-1,2-cyclohexane-diamino]cobalt(III) acetate; water In tetrahydrofuran at 0 - 20℃; for 16h; | A 36% B n/a |
With (S,S)-[N,N-bis(3,5-di-tert-butylsalicylidene)-1,2-cyclohexane-diamino]cobalt(III) acetate; water In tetrahydrofuran at 0 - 20℃; for 12h; | A n/a B 36% |
piperidine
rac-1,2,3,4-diepoxybutane
racem.-1,4-dipiperidino-butane-2,3-diol
Conditions | Yield |
---|---|
With diethyl ether |
Conditions | Yield |
---|---|
With benzene Erhitzen des Reaktionsprodukts bis auf 260grad/15 Torr; |
4-methoxy-aniline
rac-1,2,3,4-diepoxybutane
(+/-)-1-(4-methoxy-phenyl)-pyrrolidine-3r,4t-diol
Conditions | Yield |
---|---|
With benzene Erhitzen des Reaktionsprodukts unter vermindertem Druck bis auf 240grad; |
Conditions | Yield |
---|---|
at 210℃; under 20 Torr; |
Conditions | Yield |
---|---|
With benzene Erhitzen des Reaktiosprodukts bis auf 260grad/15 Torr; |
Conditions | Yield |
---|---|
With benzene Erhitzen des Reaktionsprodukts unter vermindertem Druck bis auf 240grad; |
NTP 10th Report on Carcinogens. EPA Extremely Hazardous Substances List. EPA Genetic Toxicology Program. Community Right-To-Know List. Reported in EPA TSCA Inventory.
The 1,1'-Bi(ethylene oxide), with the cas registry number 1464-53-5, has its systematic name of 2-(oxiran-2-yl)oxirane. This is a kind of light yellow liquid. When store, it should be kept in the dry, cool, well-ventilated room with the temperature of 0-6°C, away from the food material. This chemical is mainly used in curing polymers ; crosslinking textile fibers and to prevent spoilage.
The characteristics of this chemical are as followings: (1)#H bond acceptors: 2 ; (2)#Freely Rotating Bonds: 1; (3)Polar Surface Area: 25.06; (4)Index of Refraction: 1.546; (5)Molar Refractivity: 19.7 cm3; (6)Molar Volume: 62.2 cm3; (7)Polarizability: 7.81× 10-24 cm3; (8)Surface Tension: 63.3 dyne/cm; (9)Density: 1.383 g/cm3; (10)Flash Point: 45.6 °C; (11)Enthalpy of Vaporization: 35.98 kJ/mol; (12)Boiling Point: 138 °C at 760 mmHg; (13)Vapour Pressure: 8.53 mmHg at 25°C.
You should be cautious while dealing with this chemical. For being a kind of toxic chemical, it is harmful if swallowed or by inhalation. Then it may at very low levels cause damage to health, and may even cause cancer and heritable genetic damage. Besides, it may cause burns. Therefore, you should take the following instructions. Avoid exposure - obtain special instructions before use, and if in case of accident or if you feel unwell, seek medical advice immediately (show the label where possible).
Addtionally, the following datas could be converted inte the molecular structure:
(1)SMILES:C1OC1C2CO2
(2)InChI:InChI=1/C4H6O2/c1-3(5-1)4-2-6-4/h3-4H,1-2H2
(3)InChIKey:ZFIVKAOQEXOYFY-UHFFFAOYAG
Below are the toxicity information of this chemical:
Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
---|---|---|---|---|---|
mouse | LD50 | intraperitoneal | 31mg/kg (31mg/kg) | Naunyn-Schmiedeberg's Archiv fuer Experimentelle Pathologie und Pharmakologie. Vol. 230, Pg. 559, 1957. | |
mouse | LD50 | oral | 72mg/kg (72mg/kg) | Shell Chemical Company. Unpublished Report. Vol. -, Pg. 2, 1961. | |
rabbit | LD50 | skin | 89uL/kg (0.089mL/kg) | AMA Archives of Industrial Hygiene and Occupational Medicine. Vol. 10, Pg. 61, 1954. | |
rat | LC50 | inhalation | 90ppm/4H (90ppm) | Shell Chemical Company. Unpublished Report. Vol. -, Pg. 2, 1961. | |
rat | LD50 | oral | 78mg/kg (78mg/kg) | AMA Archives of Industrial Hygiene and Occupational Medicine. Vol. 10, Pg. 61, 1954. |
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