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Cas:60-18-4
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inquiryFactory price L-Tyrosine CAS 60-18-4 Purity: 99% Min Application: Intermediates Appearance: Powder Package: Bag Delivery: 3-5days Our Advantage & Service 1.Top quality: Using high quality material and establishing a strict quality co
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inquiryName:L-Tyrosine Type: Food Additives CAS:60-18-4 Purity:99% Appearance:White powder Storage:Sealed storage Packing Specification:1kg, 5kg, 10kg,25kg Molecular Formula:C9H11NO3 Molecular Weight:181.19 Application:Food industry
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inquiryProduct name: L-Tyrosine CAS No.:60-18-4 Molecule Formula:C9H11NO3 Molecule Weight:181.19 Purity: 99.6% Package: 25kg/drum Description:White crystals or crystalline powder Manufacturer standard: FCCIV,AJI, USP, EP.
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Items Standard Result Appearance White crystals or crystalline powder White crystalline powder Identification
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inquiryCAS No.: 60-18-4 Other Names: L-Tyrosine MF: C9H11NO3 EINECS No.: 200-460-4 Place of Origin: Henan, China (Mainland) Type: Vitamins, Amino Acids and Coenzyme
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Conditions | Yield |
---|---|
With trimethylsilyl trifluoromethanesulfonate; methyl-phenyl-thioether In trifluoroacetic acid at 0℃; for 0.5h; | 100% |
With trimethylsilyl trifluoromethanesulfonate; methyl-phenyl-thioether In trifluoroacetic acid at 0℃; for 0.5h; Product distribution; New peptide deprotection procedure: hard-soft acid-base concept; the role of soft bases (thioanisole, dimethylsulfide, diphenylsulfide) employed.; | 100% |
With dimethylsulfide; hydrogen fluoride at 0℃; for 2h; Product distribution; Var.: HF in anisole; | 99.5% |
Conditions | Yield |
---|---|
With ammonium bicarbonate; water In dichloromethane for 15h; α-chymotrypsin; | 100% |
at 25℃; for 0.833333h; enzyme alcalase from Bacillus licheniforms; pH 8.2; | |
With water at 37℃; Rate constant; pH 7.4; apparent rate constant of product formation; calculated nasal absorption rate constant; | |
With water; sodium chloride In dimethyl sulfoxide at 37℃; Rate constant; also human plasma as reagent; | |
Multi-step reaction with 4 steps 1: dichloromethane / 20 °C 2: copper diacetate; oxygen / acetonitrile / 20 h 3: potassium hydroxide / methanol; water / 7 h / Reflux 4: dimethyl sulfoxide; aq. phosphate buffer / 24 h / 37 °C / pH 7.4 View Scheme |
Conditions | Yield |
---|---|
With ammonium bicarbonate; water In dichloromethane for 12h; α-chymotrypsin; | 100% |
With water at 37℃; Rate constant; pH 7.4; apparent rate constant of product formation; calculated nasal absorption rate constant; | |
With water; sodium chloride In dimethyl sulfoxide at 37℃; Rate constant; also human plasma as reagent; |
N,O-bis-allyloxycarbonyl-L-tyrosine
L-tyrosine
Conditions | Yield |
---|---|
With bis-triphenylphosphine-palladium(II) chloride; tri-n-butyl-tin hydride; acetic acid In dichloromethane Product distribution; slectivity of cleavge of allyl and allyloxycarbonyl groups; other amino acid derivatives; | 100% |
With tri-n-butyl-tin hydride; bis-triphenylphosphine-palladium(II) chloride In dichloromethane Ambient temperature; | 95% |
N-tert-butoxycarbonyl-O-2,6-dichlorobenzyl-L-tyrosine
L-tyrosine
Conditions | Yield |
---|---|
With Nafion H; dimethylsulfide; 3-methyl-phenol; trifluoroacetic acid for 3h; | 100% |
With trimethylsilyl trifluoromethanesulfonate; methyl-phenyl-thioether In trifluoroacetic acid at 0℃; for 0.5h; | 100% |
With trimethylsilyl trifluoromethanesulfonate; methyl-phenyl-thioether In trifluoroacetic acid at 0℃; for 0.5h; Product distribution; New peptide deprotection procedure: hard-soft acid-base concept; the role of soft bases (thioanisole, dimethylsulfide, diphenylsulfide) employed.; | 100% |
Conditions | Yield |
---|---|
With water at 170℃; for 0.05h; Microwave irradiation; | 100% |
With sodium tetrahydroborate In methanol; aq. phosphate buffer at 20℃; for 1h; Cooling with ice; Sealed tube; | 87% |
Multi-step reaction with 3 steps 1: potassium fluoride / N,N-dimethyl-formamide / 72 h / 20 °C 2: trifluoroacetic acid / dichloromethane / 24 h / 20 °C 3: acetonitrile / 2.6 h / pH 7.2 / Photolysis; HEPES buffer View Scheme |
Conditions | Yield |
---|---|
With formate dehydrogenase; NAD; ammonium formate at 30℃; for 24h; PheDH; | 99% |
With L-phenylalanine; L-specific transaminase ywfG at 20℃; for 16h; pH=8; aq. potassium phosphate buffer; Enzymatic reaction; |
Conditions | Yield |
---|---|
With ammonium formate; tris hydrochloride; nicotinamide adenine dinucleotide; formate dehydrogenase; phenylalanine dehydrogenase In water at 30℃; for 24h; | 99% |
With L-glutamic acid; pyridoxal 5'-phosphate In water at 40℃; for 4h; E.coli Aspartate transaminase, pH 8; | 80% |
(RS)-tyrosinamide hydrochloride
L-tyrosine
Conditions | Yield |
---|---|
With pyridoxal 5'-phosphate monohydrate; cobalt(II) chloride In aq. buffer at 40℃; for 6h; pH=7.0; Enzymatic reaction; | 99% |
(Z)-2-benzamido-3-(p-hydroxyphenyl)-2-propenic acid
L-tyrosine
Conditions | Yield |
---|---|
With hydrogen; PF6 In tetrahydrofuran at 25℃; under 760 Torr; | 98% |
With hydrogen; PF6 In tetrahydrofuran at 25℃; under 760 Torr; effects of solvents dependency of the optical yields; |
Nα-(allyloxycarbonyl)tyrosine O-allyl ether
L-tyrosine
Conditions | Yield |
---|---|
With tri-n-butyl-tin hydride; bis-triphenylphosphine-palladium(II) chloride In dichloromethane Ambient temperature; | 95% |
D,L-Tyr-OPron
L-tyrosine
Conditions | Yield |
---|---|
With Alcalase; pyridoxal 5'-phosphate; water In tert-butyl alcohol at 40℃; for 4h; pH=8.5; racemization of D-enantiomer; kin. resolution; | 95% |
benzyl tyrosinate
L-tyrosine
Conditions | Yield |
---|---|
With Alcalase; pyridoxal 5'-phosphate; water In tert-butyl alcohol at 40℃; for 3h; pH=8.5; racemization of D-enantiomer; kin. resolution; | 95% |
With Alcalase; 3,5-dichlorobenzaldehyde In water; acetonitrile at 35℃; for 24h; pH=8.5; Enzymatic reaction; optical yield given as %ee; | 95% |
L-tyrosine
Conditions | Yield |
---|---|
With tris[(3-sulfophenyl)phosphine]palladium(0) dodecasodium salt In aq. phosphate buffer; dimethyl sulfoxide at 37℃; for 0.0833333h; pH=7.8; Catalytic behavior; Reagent/catalyst; | 95% |
tyrosine ethyl ester
L-tyrosine
Conditions | Yield |
---|---|
With Alcalase; 3,5-dichlorobenzaldehyde In water; acetonitrile at 35℃; for 72h; pH=7.5; Enzymatic reaction; optical yield given as %ee; | 92% |
With α-chymotrypsin In water; acetone at 30℃; for 24h; Product distribution; var. solvents; other amino acids; | 50% |
D,L-TyrO-iPr
L-tyrosine
Conditions | Yield |
---|---|
With Alcalase; 3,5-dichlorobenzaldehyde In water; acetonitrile at 35℃; for 120h; pH=8.0; Enzymatic reaction; optical yield given as %ee; | 92% |
hexan-1-amine
(S)-2-(3,5-Dinitro-4-oxo-4H-pyridin-1-yl)-3-(4-hydroxy-phenyl)-propionic acid
A
L-tyrosine
B
1-hexyl-3,5-dinitro-4-pyridone
Conditions | Yield |
---|---|
In pyridine Product distribution; | A 88.3% B n/a |
tyrosine methyl ester hydrochloride
A
tyrosine
B
D-tyrosine methyl ester
C
L-tyrosine
Conditions | Yield |
---|---|
at 30℃; for 0.333333h; enzyme alcalase from Bacillus licheniforms; pH 8.0; Yields of byproduct given; | A n/a B 86% C n/a |
at 30℃; for 0.333333h; enzyme alcalase from Bacillus licheniforms; pH 8.0; Yield given. Yields of byproduct given. Title compound not separated from byproducts; |
p-borono-L-phenylalanine
L-tyrosine
Conditions | Yield |
---|---|
With sodium L-ascorbate; fluorescein free acid In aq. phosphate buffer for 0.5h; pH=7.4; Irradiation; | 85% |
Conditions | Yield |
---|---|
With ethylenediaminetetraacetic acid; pyridoxal 5'-phosphate; Ammonium; recombinant wild-type thermophilic tyrosine phenol lyases from thermophilic microorganism Symbiobacterium toebii In aq. phosphate buffer at 37℃; pH=8; Green chemistry; Enzymatic reaction; stereoselective reaction; | 84% |
With ammonium chloride at 50℃; β-tyrosinase from Symbiobacterium thermophilum, 0.2 mM pyridoxal-5'-phosphate, 50 mM potassium phosphate buffer pH 8.0; |
(S)-tert-butyl 2-((tert-butoxycarbonyl)amino)-3-(4-hydroxyphenyl)propanoate
L-tyrosine
Conditions | Yield |
---|---|
With acetic acid In water at 160℃; for 0.0833333h; Microwave irradiation; optical yield given as %ee; | 81% |
Multi-step reaction with 3 steps 1.1: 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; dmap / dichloromethane / 0 - 21 °C / Inert atmosphere 2.1: trifluoroacetic acid / dichloromethane / 0 - 21 °C / Inert atmosphere 2.2: Inert atmosphere 3.1: water / 24 h / 21 °C / pH 7.5 View Scheme |
Conditions | Yield |
---|---|
With ammonium acetate In water at 37℃; for 20h; pH 8.5; with Erwinia herbicola; | 80% |
at 70℃; for 2.5h; β-tyrosinase from Symbiobacterium thermophilum, 50 mM potassium phosphate buffer pH 8.0; |
L-tyrosine
Conditions | Yield |
---|---|
With hydrogenchloride In methanol; water at 20℃; for 0.5h; Inert atmosphere; | 80% |
methanol
(S)-2-[(S)-2-Amino-3-(4-hydroxy-phenyl)-propionylamino]-3-(4-hydroxy-phenyl)-propionic acid
A
benzyl methyl ether
B
L-tyrosine
Conditions | Yield |
---|---|
With potassium hydroxide; [bis(acetoxy)iodo]benzene at 0 - 5℃; for 1.5h; | A 78% B n/a |
Conditions | Yield |
---|---|
With boron trichloride In dichloromethane at 25℃; for 0.333333h; | 72% |
With cell extract of Sphingomonas paucimobilis SC 16113 In water at 42℃; for 20h; Enzymatic reaction; | 100 % Chromat. |
With ethylenediaminetetraacetic acid; phenylmethylsulphonyl fluoride; water In aq. phosphate buffer at 30℃; Kinetics; Reagent/catalyst; Microbiological reaction; Enzymatic reaction; |
tyrosine methyl ester
Moz-Asp(Bzl)-OBzl
A
L-tyrosine
Conditions | Yield |
---|---|
Stage #1: tyrosine methyl ester With Alcalase; water In tert-butyl alcohol at 25℃; pH=8.5; kinetic resolution; Stage #2: Moz-Asp(Bzl)-OBzl With Alcalase In tert-butyl alcohol Condensation; | A n/a B 63% |
D,L-tyrosine benzyl ester hydrochloride
L-tyrosine
Conditions | Yield |
---|---|
Stage #1: D,L-tyrosine benzyl ester hydrochloride With lithium carbonate In water; tert-butyl alcohol at 23℃; for 0.166667h; Resolution of racemate; Stage #2: With 2-Hydroxymethylpyridine; Alcalase; water; zinc(II) acetate dihydrate In tert-butyl alcohol at 23℃; for 4h; Resolution of racemate; Enzymatic reaction; optical yield given as %ee; | 63% |
(S)-3-benzyloxycarbonyl-4-(4-hydroxyphenyl)methyloxazolidin-5-one
L-tyrosine
Conditions | Yield |
---|---|
With boron trichloride In dichloromethane at 25℃; for 0.333333h; | 62% |
L-tyrosine
Conditions | Yield |
---|---|
With tris[(3-sulfophenyl)phosphine]palladium(0) dodecasodium salt In aq. phosphate buffer; dimethyl sulfoxide at 37℃; for 0.0833333h; pH=7.8; Catalytic behavior; Reagent/catalyst; | 47% |
Conditions | Yield |
---|---|
With thionyl chloride 1.) room temperature, 2 h, 2.) reflux, 0.5 h; | 100% |
With thionyl chloride | 100% |
With thionyl chloride at 0 - 20℃; | 99% |
Conditions | Yield |
---|---|
With hydrogenchloride | 100% |
With sulfuric acid at -10℃; Reflux; | 90.2% |
With amberlyst-15 Ambient temperature; | 70% |
Conditions | Yield |
---|---|
With triethylamine In methanol at 20℃; for 168h; | 100% |
With potassium methanolate In methanol at 40℃; | 86% |
With methanol; ion-exchange resin + form>; N,N,N',N'-tetramethylguanidine |
Conditions | Yield |
---|---|
With sodium hydroxide In tetrahydrofuran; water at 20℃; for 4h; Inert atmosphere; Cooling with ice; | 100% |
With N-ethyl-N,N-diisopropylamine | 96% |
With sodium hydroxide In tetrahydrofuran; water at 20℃; for 12h; Cooling with ice; | 95% |
methanol
di-tert-butyl dicarbonate
L-tyrosine
(S)-N-(tert-butoxycarbonyl)tyrosine methyl ester
Conditions | Yield |
---|---|
Stage #1: methanol; L-tyrosine With thionyl chloride for 3h; Inert atmosphere; Heating; Stage #2: di-tert-butyl dicarbonate With triethylamine In methanol for 20h; Inert atmosphere; | 100% |
Stage #1: methanol; L-tyrosine With thionyl chloride Heating; Stage #2: di-tert-butyl dicarbonate With sodium hydrogencarbonate In 1,4-dioxane; water at 20℃; Further stages.; |
L-leucine
L-phenylalanine
L-tyrosine
glycine
H-Tyr-Gly-Gly-Phe-Leu-NH2
Conditions | Yield |
---|---|
Stage #1: L-tyrosine With BF4(1-)*C7H13N3Pol(1+); benzotriazol-1-ol; O-(1H-benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate; N-ethyl-N,N-diisopropylamine In 1-methyl-pyrrolidin-2-one at 25℃; for 1h; Ionic liquid; Automated synthesizer; solid phase reaction; Stage #2: glycine In 1-methyl-pyrrolidin-2-one at 25℃; for 1h; Ionic liquid; Automated synthesizer; solid phase reaction; Stage #3: L-leucine; L-phenylalanine Further stages; | 100% |
Conditions | Yield |
---|---|
With tyrosine prenyltransferase SirD from Leptosphaeria maculans; calcium chloride In dimethyl sulfoxide; glycerol at 37℃; for 1.5h; pH=7.5; Reagent/catalyst; Enzymatic reaction; | 100% |
With 7-dimethylallyl tryptophan synthase from Aspergillus fumigatus; calcium chloride In dimethyl sulfoxide; glycerol at 37℃; for 16h; pH=7.5; Kinetics; Enzymatic reaction; stereoselective reaction; | 36% |
With potassium chloride; magnesium chloride In aq. buffer at 35℃; for 16h; pH=7.5; Kinetics; | |
With recombinant N-1‑dimethylallyltryptophan synthase from Fusarium f ujikuroi at 35℃; pH=7 - 9; Kinetics; Enzymatic reaction; regiospecific reaction; |
Conditions | Yield |
---|---|
In methanol at 120℃; for 0.25h; Microwave irradiation; | 99.28% |
L-tyrosine
Conditions | Yield |
---|---|
With sodium methylate In methanol at 20℃; for 24h; Inert atmosphere; Schlenk technique; Darkness; | 99.2% |
Conditions | Yield |
---|---|
With pyridoxal 5'-phosphate; aromatic L-amino acid decarboxylase In various solvent(s) at 30℃; for 48h; | 99% |
at 300 - 340℃; | |
Bestrahlen der Kristalle mit Roentgen-Strahlen; |
L-tyrosine
methyl chloroformate
(S)-3-(4-hydroxyphenyl)-2-[(methoxycarbonyl)amino] propionic acid
Conditions | Yield |
---|---|
With sodium hydrogencarbonate In tetrahydrofuran; water at 20℃; | 99% |
With sodium hydroxide In water at 5℃; for 1.5h; Schotten-Baumann reaction; | 90% |
With sodium hydrogencarbonate In tetrahydrofuran; water at 20℃; | 80% |
With sodium hydroxide In 1,4-dioxane; water at 0 - 20℃; |
L-tyrosine
Conditions | Yield |
---|---|
With [bis(acetoxy)iodo]benzene; ammonia In methanol at 0 - 20℃; for 2h; Inert atmosphere; | 99% |
L-tyrosine
acetyl chloride
(S)-3-(3-acetyl-4-hydroxyphenyl)-2-aminopropanoic acid hydrochloride
Conditions | Yield |
---|---|
With aluminium trichloride In nitrobenzene at 100℃; for 6h; | 98% |
Stage #1: L-tyrosine With aluminum (III) chloride In nitrobenzene at 20℃; for 0.166667h; Stage #2: acetyl chloride In nitrobenzene at 100℃; for 6h; | 83% |
With aluminium trichloride In nitrobenzene at 100℃; Friedel-Crafts acetylation; | 80% |
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