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| CAS No.: | 125700-67-6 |
|---|---|
| Name: | 2-(1H-Benzotriazole-1-yl)-1,1,3,3-tetramethyluronium tetrafluoroborate |
| Molecular Structure: | |
|
|
|
| Formula: | C11H16N5O.BF4 |
| Molecular Weight: | 321.086 |
| Synonyms: | (1H-Benzotriazol-1-yl)-1,1,3,3-tetramethyluronium tetrafluoroborate;Btttfb;Methanaminium, N-((1H-benzotriazol-1-yloxy)(dimethylamino)methylene)-N-methyl-, tetrafluoroborate(1-);O-(Benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate; |
| EINECS: | 423-040-4 |
| Melting Point: | 205°C (dec.)(lit.) |
| Flash Point: | STABILITY |
| Solubility: | acetonitrile: 0.1 g/mL, clear |
| Appearance: | white or off-white crystalline powder |
| Hazard Symbols: |
Xi, F
|
| Risk Codes: | 36/37/38-5 |
| Safety: | 26-36-37/39-36/37/39 |
| PSA: | 46.19000 |
| LogP: | 1.34960 |

N-methyl-p-aminophenol


(R)-N2-[(4-amino-3,5-dichlorophenyl)sulphonyl]-N5-[amino(nitroimino)methyl]-ornithine


N-ethyl-N,N-diisopropylamine


O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate

| Conditions | Yield |
|---|---|
| 58% |



(R)-N5-[amino(nitroimino)methyl]-N2-[(2-naphthyl)carbonyl]-ornithine


2-naphthaloyl chloride

A

(R)-N5-[Amino(nitroimino)methyl]-N-[(4-hydroxyphenyl)-methyl]-N2-(2-naphthoyl)-ornithinamide

B

O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate

| Conditions | Yield |
|---|---|
| A n/a B 36% |


diphenylacetic acid chloride

A

(R,S)-N5-(Aminocarbonyl)-N2-(diphenylacetyl)-N-[(4-hydroxyphenyl)methyl]-ornithinamide

B

O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate

| Conditions | Yield |
|---|---|
| A n/a B 34% |

N,N,N',N'-tetramethylchlorformamidinium chloride


1-Hydroxy-1,2,3-benzotriazole potassium salt


O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate

| Conditions | Yield |
|---|---|
| With potassium chloride; potassium tetrafluoroborate |

tetramethylurea


O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate

| Conditions | Yield |
|---|---|
| Multi-step reaction with 2 steps 1: oxalyl chloride 2: KBF4,KCl View Scheme |

succinic acid anhydride

B

O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate

| Conditions | Yield |
|---|---|
| With dmap; benzotriazol-1-ol In ethyl acetate; N,N-dimethyl-formamide |

pyrrolidine


4-bromo-2-methylbenzoic acid


O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate


N-ethyl-N,N-diisopropylamine


(4-bromo-2-methylphenyl)(pyrrolidin-1-yl)methanone

| Conditions | Yield |
|---|---|
| In tetrahydrofuran; water | 98% |



O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate


1-t-Butoxycarbonylpiperazine

| Conditions | Yield |
|---|---|
| With triethylamine In water; ethyl acetate; N,N-dimethyl-formamide | 97% |


diisopropylethyl amine



N-ethyl-N-[1-oxo-4-[1-[(phenylmethoxy)carbonyl]-4-piperidinyl]butyl]glycine


O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate

| Conditions | Yield |
|---|---|
| With N-ethyl-N,N-diisopropylamine In N-methyl-acetamide; N,N-dimethyl-formamide | 95% |


Oleanolic acid


O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate


1-benzotriazolyl 3β-hydroxyolean-12-en-28-oate

| Conditions | Yield |
|---|---|
| With N-ethyl-N,N-diisopropylamine In tetrahydrofuran at 20℃; for 12h; | 95% |
| With N-ethyl-N,N-diisopropylamine In tetrahydrofuran at 20℃; for 5h; Inert atmosphere; | 93% |
| With N-ethyl-N,N-diisopropylamine In tetrahydrofuran at 20℃; for 5h; Inert atmosphere; | 93% |
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IUPAC Name of TBTU (125700-67-6): [benzotriazol-1-yloxy(dimethylamino)methylidene]-dimethylazanium; boron(3+); tetrafluoride
Synonyms:O-Benzotriazol-1-yl-N,N,N',N'-tetramethyluronium tetrafluoroborate; 2-(1H-Benzotriazole-1-yl)-1,1,3,3-tetramethyluronium tetrafluoroborate
Molecular Formula: C11H16N5O.BF4
Molecular Weight : 321.08 g/mol
EINECS: 423-040-4
storage temp.: 2-8 °C
Melting point: 200 °C
solubility:acetonitrile: 0.1 g/mL, clear
Appearance: white or off-white crystalline powder
Following is the molecular structure of TBTU (125700-67-6):

Safty informations about TBTU (125700-67-6):
Hazard Symbols:
Xi,
F
Risk Codes :
R36/37/38:Irritating to eyes, respiratory system and skin.
R5 :Heating may cause an explosion.
Safety Description :
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S36:Wear suitable protective clothing.
S37/39: Wear suitable gloves and eye/face protection.
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection.
WGK Germany: 3
F: 8-10-21
Hazard Note: Irritant/Flammable