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387649

Sigma-Aldrich

N,N-Diisopropylethylamine

purified by redistillation, 99.5%

Synonym(s):

N-Ethyldiisopropylamine, DIPEA, Ethyldiisopropylamine, ‘Hünig’s base’

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About This Item

Linear Formula:
[(CH3)2CH]2NC2H5
CAS Number:
7087-68-5
Molecular Weight:
129.24
EC Number:
230-392-0
MDL number:
MFCD00008868
UNSPSC Code:
12352100
PubChem Substance ID:
24864178
NACRES:
NA.21
form:
liquid
Assay:
99.5%
Pricing and availability is not currently available.

vapor pressure

31 mmHg ( 37.7 °C)

Quality Level

200

Assay

99.5%

form

liquid

purified by

redistillation

refractive index

n20/D 1.414 (lit.)

bp

127 °C (lit.)

mp

<−50 °C (lit.)

solubility

water: soluble 4.01 g/L at 20 °C

density

0.742 g/mL at 25 °C (lit.)

functional group

amine

SMILES string

CCN(C(C)C)C(C)C

InChI

1S/C8H19N/c1-6-9(7(2)3)8(4)5/h7-8H,6H2,1-5H3

InChI key

JGFZNNIVVJXRND-UHFFFAOYSA-N

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General description

N,N-diisopropylethylamine is an aliphatic sterically hindered[1] amine.

Application

N,N-diisopropylethylamine may be used in the following processes:
  • As an organic base in the synthesis of indenopyrones.[2]
  • As an activator for chiral iridium N, P ligand complexes which can be utilized in the hydrogenation of α,β-unsaturated nitriles.[3]
  • As a non-nucleophilic base for substitution reaction.[4]
  • As a starting material in the preparation of bis[1,2]dithiolo[1,4]thiazines and bis[1,2]dithiolopyrroles.[5]

Signal Word

Danger

Hazard Classifications

Acute Tox. 3 Inhalation - Acute Tox. 4 Oral - Aquatic Chronic 2 - Eye Dam. 1 - Flam. Liq. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

3 - Flammable liquids

WGK

WGK 2

Flash Point(F)

49.1 °F

Flash Point(C)

9.5 °C

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
STBL4050
SDBB0909
SHBR5204
SHBS2812
STBL3636

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Selective Syntheses of Bis [1, 2] dithiolo [1, 4] thiazines and Bis [1, 2] dithiolopyrroles from Hunig's Base.
Rees CW, et al.
The Journal of Organic Chemistry, 63(7), 2189-2196 (1998)
Enantioselective N-heterocyclic carbene-catalyzed synthesis of indenopyrones.
Chen KQ, et al.
Organic & Biomolecular Chemistry (2015)
Asymmetric Hydrogenation of α, β-Unsaturated Nitriles with Base-Activated Iridium N, P Ligand Complexes.
Muller MA and Pfaltz A.
Angewandte Chemie (Weinheim an der Bergstrasse, Germany), 126(33), 8812-8815 (2014)
Sequential Michael Addition and Enamine-Promoted Inverse Electron Demanding Diels-Alder Reaction upon 3-Vinyl-1,2,4-triazine Platforms.
Lorion M, et al.
Organic Letters (2015)
Facile and Gram-scale Synthesis of Metal-free Catalysts: Toward Realistic Applications for Fuel Cells.
Kim OH, et al.
Scientific Reports, 5 (2015)
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Questions

1–3 of 3 Questions  

  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  3. Is your DIPEA purified by redistillation (item 387649) in a bottle with some type of sure seal?

    1 answer

    1. Yes, this product is purified by distillation and packaged in a Sure/Seal bottle.

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