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471232

Sigma-Aldrich

Dibutylamine

≥99.5%

Sinônimo(s):

N,N-Di-n-butylamine, N-Butyl-1-butanamine, n-Dibutylamine, Di-n-butylamine

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About This Item

Fórmula linear:
(CH3CH2CH2CH2)2NH
Número CAS:
111-92-2
Peso molecular:
129.24
Beilstein:
506001
Número CE:
203-921-8
Número MDL:
MFCD00009429
Código UNSPSC:
12352100
ID de substância PubChem:
24870706
NACRES:
NA.22

densidade de vapor

4.46 (vs air)

Nível de qualidade

200

pressão de vapor

1.9 mmHg ( 20 °C)

Ensaio

≥99.5%

forma

liquid

temperatura de autoignição

594 °F

Lim. expl.

10 %

índice de refração

n20/D 1.417 (lit.)

pH

11.1 (20 °C, 1 g/L)

pb

159 °C (lit.)

pf

−62 °C (lit.)

solubilidade

water: soluble 3.8 g/L at 20 °C

densidade

0.767 g/mL at 25 °C (lit.)

grupo funcional

amine

cadeia de caracteres SMILES

CCCCNCCCC

InChI

1S/C8H19N/c1-3-5-7-9-8-6-4-2/h9H,3-8H2,1-2H3

chave InChI

JQVDAXLFBXTEQA-UHFFFAOYSA-N

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Descrição geral

Dibutylamine is a highly reactive catalyst, commonly used as a reagent in the derivatization of isocyanates.

Aplicação

Dibutylamine can be used as a reactant to synthesize:,·      
  • N, N




  • -Dibutyl-4-methylaniline by Pd-catalyzed Buchwald-Hartwig amination reaction with aryl chlorides and bromides.     
  • N,N-Dibutylacetamide by acetylation reaction with isopropenyl acetate.

It can also be used as:      
  • A strong hindered base in the different elimination reactions.
  • An organocatalyst to synthesize annulated pyrano[2,3-d]pyrimidine derivatives via multicomponent condensation reaction of aromatic aldehydes, malononitrile, and barbituric acid.

Palavra indicadora

Danger

Frases de perigo

H226,H302,H311,H314,H330

Classificações de perigo

Acute Tox. 2 Inhalation - Acute Tox. 3 Dermal - Acute Tox. 4 Oral - Eye Dam. 1 - Flam. Liq. 3 - Skin Corr. 1A

Código de classe de armazenamento

3 - Flammable liquids

Classe de risco de água (WGK)

WGK 1

Ponto de fulgor (°F)

104.9 °F - closed cup

Ponto de fulgor (°C)

40.5 °C - closed cup

Equipamento de proteção individual

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

Escolha uma das versões mais recentes:

Certificados de análise (COA)

Lot/Batch Number
MKCP9959
MKCP1717
MKCM8640
MKCL2858
MKCL2857

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Se precisar de uma versão específica, você pode procurar um certificado específico pelo número do lote ou da remessa.

Pesquise por COA

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Determination of complex mixtures of airborne isocyanates and amines. Part 1. Liquid chromatography with ultraviolet detection of monomeric and polymeric isocyanates as their dibutylamine derivatives.
Spanne M, et al.
Analyst, 121(8), 1095-1099 (1996)
Chemistry of blocked isocyanates. II. Kinetics and mechanism of the reaction of dibutylamine with phenyl and 2-methylphenyl oxime carbamates.
Levine AW and Fech Jr J.
The Journal of Organic Chemistry, 37(15), 2455-2460 (1972)
Daniel Gylestam et al.
The Annals of occupational hygiene, 58(1), 28-49 (2013-08-21)
The performance of a dry sampler, with an impregnated denuder in series with a glass fibre filter, using di-n-butylamine (DBA) for airborne isocyanates (200ml min(-1)) is investigated and compared with an impinger flask with a glass fibre filter in series
Reddi Mohan Naidu Kalla et al.
European journal of medicinal chemistry, 76, 61-66 (2014-02-27)
A series of 2-amino-3-cyano-4H-chromen-4-ylphosphonates have been synthesized by reacting substituted salicylaldehydes, malononitrile, and dialkylphosphites using a catalytic amount of dibutylamine as an organocatalyst employing Knoevenagel, Pinner, and phospha-Michael reactions simultaneously in ethanol. This protocol is an environmentally friendly procedure and
Julien Peyrton et al.
Molecules (Basel, Switzerland), 24(23) (2019-12-01)
Nowadays, polyols are basic chemicals for the synthesis of a large range of polymers, such as polyurethane foams (PUF), which are produced with several other compounds, such as polyisocyanates. During the last decades, the oleo-chemistry has developed several routes from
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