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CAS No.: | 58-95-7 |
---|---|
Name: | D-alpha-Tocopheryl acetate |
Article Data: | 58 |
Molecular Structure: | |
Formula: | C31H52O3 |
Molecular Weight: | 472.752 |
Synonyms: | E-Vicotrat;Endo E Dompe;Ephynal acetate;Epsilan-M;Erevit;Nanotopes;Natur-E granulate;Tofaxin;Tokoferol acetate;2H-1-Benzopyran-6-ol,3,4-dihydro-2,5,7,8-tetramethyl-2-(4,8,12-trimethyltridecyl)-, acetate,[2R-[2R*(4R*,8R*)]]-;2H-1-Benzopyran-6-ol,3,4-dihydro-2,5,7,8-tetramethyl-2-[(4R,8R)-4,8,12-trimethyltridecyl]-, acetate,(2R)- (9CI);Vitamin E acetate (7CI);a-Tocopherol acetate (6CI);(+)-a-Tocopherol acetate;(+)-a-Tocopheryl acetate;(2R,4'R,8'R)-a-Tocopherolacetate;(2R,4'R,8'R)-a-Tocopheryl acetate;(R,R,R)-a-Tocopheryl acetate;Alfacol;Combinal E;Contopheron;Copherol F 1250C;Covitol; |
EINECS: | 200-405-4 |
Density: | 0.941 g/cm3 |
Melting Point: | ~25 °C(lit.) |
Boiling Point: | 485.3 °C at 760 mmHg |
Flash Point: | 235.6 °C |
Solubility: | <0.1 g/100 mL at 17 °C in water |
Appearance: | off-white crystalline solid |
Safety: | 24/25 |
PSA: | 35.53000 |
LogP: | 9.05990 |
Conditions | Yield |
---|---|
With dmap In toluene at 65℃; for 5h; Solvent; Large scale; | 99.37% |
indium(III) triflate at 25 - 32℃; for 4.66667h; Product distribution / selectivity; | 97% |
11percent Ca +50 percent Na on SiO2 prepared from Ca(OH)2 + Na silicate at 100℃; for 3.5h; | 97.7% |
Conditions | Yield |
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92% |
Conditions | Yield |
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With 1H,4H-piperazine-N,N'-diium hydrogensulfate at 80℃; for 4h; | 89.2% |
Conditions | Yield |
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With hydrogenchloride; sulfuric acid; oxalic acid; acetic anhydride In tetralin; n-heptane | 89% |
dl-α-tocopheryl acetate
RRR-α-tocopheryl acetate
Conditions | Yield |
---|---|
durch fraktionierte Krystallisation; |
Conditions | Yield |
---|---|
With sulfuric acid at 60℃; Kinetics; Equilibrium constant; Further Variations:; Temperatures; Acetylation; |
Vitamin E benzyl ether
RRR-α-tocopheryl acetate
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: H2 / Pd/C 2: pyridine View Scheme |
(S)-6-benzyloxy-2,5,7,8-tetramethylchroman-2-ethanol p-toluenesulfonate
RRR-α-tocopheryl acetate
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: 93 percent / Li2CuCl4 2: H2 / Pd/C 3: pyridine View Scheme |
RRR-α-tocopheryl acetate
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: 93 percent / Li2CuCl4 2: H2 / Pd/C 3: pyridine View Scheme |
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D-α-Tocopheryl acetate(58-95-7) is also named as D-alpha-Tocopheryl acetate;(2r,4’r,8’r)-alpha-tocopherylacetate;(2R,4’R,8’R)-O-Acetyl-α-tocopherol;(r,r,r)-alpha-tocopherylacetate;[2R-[2R*(4R8,8R*)]]-3,4-Dihydro-2,5,7,8-tetramethyl-2-(4,8,12-trimethyltridecyl)-2H-1-benzopyran-6-ol acetate;2,5,7,8-tetramethyl-2-(4,8,12-trimethyltridecyl)-,acetate,(+)-6-chromano,and so on.D-α-Tocopheryl acetate(58-95-7) is odorless off-white crystals.
CAS: 58-95-7
Molecular Formula: C31H52O3
Molecular Weight: 472.74
Molecular structure:
EINECS: 231-710-0
Melting point: ~25 °C(lit.)
alpha: 3 °(c=2, in ethanol 25 °C)
Boiling point: 224 °C0.3 mm Hg(lit.)
Density: 0.953 g/mL at 25 °C(lit.)
Refractive index: n20/D 1.496(lit.)
Flash point: >230 °F
Storage temp.: 2-8°C
Form: oil or semi-solid
Color: yellow
Water Solubility: <0.1 g/100 mL at 17 °C
Merck: 9495
When heated to decomposition it emits acrid smoke and irritating fumes.
Safety Statements: 24/25
WGK Germany: 1