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Name	N-Boc-L-tert-Leucine	EINECS	613-118-8
CAS No.	62965-35-9	Density	1.063 g/cm³
PSA	75.63000	LogP	2.40130
Solubility	N/A	Melting Point	118-121 °C
Formula	C₁₁H₂₁NO₄	Boiling Point	350 °C at 760 mmHg
Molecular Weight	231.292	Flash Point	165.5 °C
Transport Information	N/A	Appearance	white crystalline powder
Safety	24/25	Risk Codes	N/A
Molecular Structure		Hazard Symbols	N/A
Synonyms	Boc-Tle-OH;(2S)-2-(tert-Butoxycarbonylamino)-3,3-dimethylbutanoicacid;(S)-2-(((tert-Butoxy)carbonyl)amino)-3,3-dimethylbutanoic acid;(S)-2-tert-Butoxycarbonylamino-3,3-dimethylbutyric acid;BOC-L-tert-leucine;	Article Data	44

N-Boc-L-tert-Leucine Synthetic route

: 20859-02-3
L-tert-Leucine

: 24424-99-5
di-tert-butyl dicarbonate

: 62965-35-9
N-tert-butyloxycarbonyl-L-tert-leucine

Conditions

Conditions	Yield
With triethylamine In methanol at 0 - 5℃;	100%
With triethylamine In methanol at 0 - 5℃;	100%
With sodium hydroxide In 1,4-dioxane at 20℃; for 12h;	100%

NaHSO4·H2O: NaHSO4·H2O

: 20859-02-3
L-tert-Leucine

: 24424-99-5
di-tert-butyl dicarbonate

: 62965-35-9
N-tert-butyloxycarbonyl-L-tert-leucine

Conditions

Conditions	Yield
With triethylamine In 1,4-dioxane; water	99%
With triethylamine In 1,4-dioxane; water	99%

: D,L-N-Boc-t-leucine methyl ester

A: 62965-35-9
N-tert-butyloxycarbonyl-L-tert-leucine

B: 153960-35-1
N-Boc-D-tert-leucine methyl ester

Conditions

Conditions	Yield
With Bacillus licheniformis In water at 35℃; for 23h; pH=7.8;	A 93% B n/a
With Bacillus licheniformis In water at 35℃; for 18h; pH=7.8;	A n/a B 82%

: 153645-26-2
N-Boc-L-tert-leucinol

: 62965-35-9
N-tert-butyloxycarbonyl-L-tert-leucine

Conditions

Conditions	Yield
With sodium hypochlorite; 2,2,6,6-Tetramethyl-1-piperidinyloxy free radical; Isopropyl acetate; sodium hydrogencarbonate; sodium bromide at 0 - 25℃;	73%

: C14H21F6NO4

A: 62965-35-9
N-tert-butyloxycarbonyl-L-tert-leucine

B: 124655-17-0
(R)-2-(tert-butoxycarbonylamino)-3,3-dimethylbutanoic acid

Conditions

Conditions	Yield
With C28H30N3O2(1+)*Br(1-); sodium hydroxide In chloroform at 0℃; for 24h;	A 52% B n/a

: 1070-19-5
N-(tert-butyloxycarbonyl) azide

: 20859-02-3
L-tert-Leucine

: 62965-35-9
N-tert-butyloxycarbonyl-L-tert-leucine

Conditions

Conditions	Yield
With sodium hydroxide In 1,4-dioxane

: 20859-02-3
L-tert-Leucine

: 58632-95-4
2-(tert-Butoxycarbonyloxyimino)-2-phenylacetonitrile

: 62965-35-9
N-tert-butyloxycarbonyl-L-tert-leucine

Conditions

Conditions	Yield
With triethylamine In 1,4-dioxane; water for 4h; Ambient temperature;

: 335628-21-2
(4S,5R)-3-tert-butoxycarbonyl-4-tert-butyl-5-methoxy-2-oxazolidinone

: 62965-35-9
N-tert-butyloxycarbonyl-L-tert-leucine

Conditions

Conditions	Yield
With potassium hydroxide; potassium permanganate In water; tert-butyl alcohol

: D,L-N-Boc-t-leucine methyl ester

A: 62965-35-9
N-tert-butyloxycarbonyl-L-tert-leucine

B: 124655-17-0
(R)-2-(tert-butoxycarbonylamino)-3,3-dimethylbutanoic acid

C: 153960-35-1
N-Boc-D-tert-leucine methyl ester

Conditions

Conditions	Yield
With subtilisin In water at 35℃; for 18h; pH=7.5;

: D,L-N-Boc-t-leucine methyl ester

A: 62965-35-9
N-tert-butyloxycarbonyl-L-tert-leucine

B: 153960-35-1
N-Boc-D-tert-leucine methyl ester

C: 176504-88-4
2-tert-butoxycarbonylamino-3,3-dimethylbutyric acid methyl ester

Conditions

Conditions	Yield
With subtilisin In water at 35℃; for 15h; pH=7.5;

N-Boc-L-tert-Leucine Chemical Properties

Molecular structure of N-Boc-L-tert-Leucine (CAS NO.62965-35-9) is:

Product Name: N-Boc-L-tert-Leucine
CAS Registry Number: 62965-35-9
Empirical Formula: C₁₁H₂₁NO₄
Molecular Weight: 231.2887
Melting Point: 118-121 °C
Surface Tension: 35.7 dyne/cm
Density: 1.063 g/cm³
Flash Point: 165.5 °C
Enthalpy of Vaporization: 65.33 kJ/mol
Boiling Point: 350 °C at 760 mmHg
Vapour Pressure: 7.8E-06 mmHg at 25°C
Product Categories: Amino Acids;Leucine [Leu, L];Amino Acids & Deriv.;Chiral Chemicals;Peptide

N-Boc-L-tert-Leucine Safety Profile

Safety Statements: 24/25
S24/25:Avoid contact with skin and eyes.
WGK Germany: 3
HazardClass: IRRITANT

N-Boc-L-tert-Leucine Specification

N-Boc-L-tert-Leucine , its cas register number is 62965-35-9. It also can be called N-(tert-Butoxycarbonyl)-L-tert-leucine ; (S)-N-Boc-2-Amino-3,3-dimethylbutyric acid .It is a white crystalline powder.

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