ChemicalBook--->CAS DataBase List--->71432-55-8

71432-55-8

71432-55-8 Structure

71432-55-8 Structure
IdentificationBack Directory
[Name]

2-TERT-BUTYL-1,3-DIISOPROPYLISOUREA
[CAS]

71432-55-8
[Synonyms]

2-TERT-BUTYL-1
3-DIISOPROPYLISOUREA
2-TERT-BUTYL-1,3-DIISOPROPYLISOUREA
O-tert-Butyl-N,N'-diisopropylisourea
tert-Butyl N,N'-diisopropylcarbaMiMidate
O-tert-Butyl-N,N'-diisopropylisourea >
tert-Butyl N,N'-diisopropylimidocarbamate
tert-butyl N,N'-bis(1-methylethyl)imidocarbamate
CarbaMiMidic acid, N,N'-bis(1-Methylethyl)-, 1,1-diMethylethyl ester
[Molecular Formula]

C11H24N2O
[MDL Number]

MFCD06657672
[MOL File]

71432-55-8.mol
[Molecular Weight]

200.32
Questions And AnswerBack Directory
[Physical Form]

liquid
Chemical PropertiesBack Directory
[Boiling point ]

61°C/10mmHg(lit.)
[density ]

0.89±0.1 g/cm3(Predicted)
[refractive index ]

1.4240-1.4280
[storage temp. ]

0-10°C
[form ]

clear liquid
[pka]

9.54±0.50(Predicted)
[color ]

Colorless to Almost colorless
[InChI]

InChI=1S/C11H24N2O/c1-8(2)12-10(13-9(3)4)14-11(5,6)7/h8-9H,1-7H3,(H,12,13)
[InChIKey]

FESDUDPSRMWIDL-UHFFFAOYSA-N
[SMILES]

C(=NC(C)C)(OC(C)(C)C)NC(C)C
Safety DataBack Directory
[Symbol(GHS) ]

Exclamation Mark (GHS07)
GHS07
[Signal word ]

Warning
[Hazard statements ]

H302-H315-H319-H332-H335
[Precautionary statements ]

P261-P280-P305+P351+P338
[HS Code ]

2925290090
Hazard InformationBack Directory
[Uses]

2-tert-Butyl-1,3-diisopropylisourea is a useful synthetic intermediate in the synthesis of 5-Oxo Atorvastatin tert-Butyl Ester (O847160) which is a Boc-protected derivative of Atorvastatin. 2-tert-Butyl-1,3-diisopropylisourea is also used as a reagent in the total synthesis of Citrafungin A which is an antifungal natural product.
[Synthesis]

N,N'-Diisopropylcarbodiimide

693-13-0

tert-Butanol

75-65-0

2-TERT-BUTYL-1,3-DIISOPROPYLISOUREA

71432-55-8

GENERAL STEPS: CuCl (63.4 mg, 0.64 mmol, 1 mol%) was added to a solution of N,N'-diisopropylcarbodiimide (10.0 mL, 63.9 mmol, 1.0 equiv) in tert-butanol (6.97 mL, 73.5 mmol, 1.15 equiv). The reaction mixture was stirred at room temperature for 14 hours. After completion of the reaction, purification was carried out by distillation under reduced pressure (80°C, 25 mmHg). 2-tert-butyl-1,3-diisopropylisourea was obtained as a colorless oil (10.4 g, 51.9 mmol, 81% yield). The product was characterized by 1H NMR (300 MHz, CDCl3): δ 3.80-3.58 (1H, m, CH), 3.31-2.97 (1H, m, CH), 1.44 (9H, s, tBu), 1.19-1.01 (12H, m, Me2×2).

[References]

[1] Organic Letters, 2005, vol. 7, # 13, p. 2615 - 2618
[2] Chemistry - A European Journal, 2007, vol. 13, # 30, p. 8543 - 8563
[3] Beilstein Journal of Organic Chemistry, 2011, vol. 7, p. 1486 - 1493
[4] Journal of Medicinal Chemistry, 2015, vol. 58, # 10, p. 4204 - 4219
[5] Patent: EP2952517, 2015, A1. Location in patent: Paragraph 0217
Spectrum DetailBack Directory
[Spectrum Detail]

2-TERT-BUTYL-1,3-DIISOPROPYLISOUREA(71432-55-8)1HNMR
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