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140732

Sigma-Aldrich

N,N-Dimethylformamide dimethyl acetal

technical grade, 94%

Synonym(s):

1,1-Dimethoxy-N,N-dimethylmethylamine, 1,1-Dimethoxytrimethylamine

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25 ML
$60.80
100 ML
$127.00
500 ML
$296.00
2.5 L
$1,340.00

$60.80

Estimated to ship onApril 25, 2025

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25 ML
$60.80
100 ML
$127.00
500 ML
$296.00
2.5 L
$1,340.00

About This Item

Linear Formula:
(CH3)2NCH(OCH3)2
CAS Number:
4637-24-5
Molecular Weight:
119.16
Beilstein/REAXYS Number:
506020
EC Number:
225-063-3
MDL number:
MFCD00008482
UNSPSC Code:
12352302
PubChem Substance ID:
24848474
NACRES:
NA.22

$60.80

Estimated to ship onApril 25, 2025

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grade

technical grade

Quality Level

200

assay

94%

form

liquid

reaction suitability

reaction type: C-C Bond Formation

refractive index

n20/D 1.396 (lit.)

bp

102-103 °C/720 mmHg (lit.)

density

0.897 g/mL at 25 °C (lit.)

functional group

amine
ether

SMILES string

COC(OC)N(C)C

InChI

1S/C5H13NO2/c1-6(2)5(7-3)8-4/h5H,1-4H3

InChI key

ZSXGLVDWWRXATF-UHFFFAOYSA-N

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Application

N,N-Dimethylformamide dimethyl acetal (DMF-DMA) can be used as: 
  • An organocatalyst for the synthesis of 1,2-disubstituted-3,4-dihydronaphthalenes by the reaction of vinylarenes and electron-deficient alkynes.[1]       
  • A building block for the preparation of heterocyclic compounds such as enamines and amidines via formylation of methylene and amino groups.[2]       
  • A reagent in the synthesis of 1,4-diaryl-piperazine-2,5-diones by reacting with chloroacetamides.[3]        
  • A reagent along with enamine and alkyne for the preparation of 2,3,4,5-tetrasubstituted pyridine derivatives by three-component coupling reaction in the presence of Me3SiCl.[4]

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Danger

Hazard Classifications

Acute Tox. 4 Inhalation - Eye Dam. 1 - Flam. Liq. 2 - Skin Sens. 1

Storage Class

3 - Flammable liquids

wgk_germany

WGK 1

flash_point_f

42.8 °F

flash_point_c

6 °C

ppe

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

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Certificates of Analysis (COA)

Lot/Batch Number
MKBX5603V
MKBV2100V
MKBL2739V
MKBK5062V
MKBJ6004V

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Wim Schepens et al.
Organic letters, 8(19), 4247-4250 (2006-09-08)
A novel series of analogues of calcitriol (1) is developed featuring a spirocyclic central core resulting from C18/C21-connection and C15/C16-deletion (2a, 2b). The synthesis of the key intermediate involves an Eschenmoser rearrangement of an enantiomerically pure bromo-substituted cyclohexenol.
Dimethylformamide dimethyl acetal as a building block in heterocyclic synthesis
Abu-Shanab FA, et al.
Journal of Heterocyclic Chemistry, 46(5), 801-827 (2009)
Synthesis of 1, 4-Diaryl-piperazine-2, 5-diones: New Behavior of N, N-Dimethylformamide Dimethyl Acetal (DMFDMA)
Abu-Shanab FA, et al.
Synthetic Communications, 38(3), 376-382 (2008)
A highly efficient cycloaddition of vinylarenes with electron-deficient alkynes affording 1, 2-disubstituted-3, 4-dihydronaphthalenes catalysed by N, N-dimethylformamide dimethyl acetal
Jiang J-L, et al.
Organic & Biomolecular Chemistry, 5(12), 1854-1857 (2007)
Toshiaki Sasada et al.
The Journal of organic chemistry, 73(17), 6905-6908 (2008-07-30)
We have identified a Me3SiCl-mediated three-component coupling reaction of a functionalized enamine, N,N-dimethylformamide diethyl acetal, and an internal alkyne having an electron-withdrawing group that produces 2,3,4,5-tetrasubstituted pyridine derivatives in good to excellent yields via a single-step reaction.
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  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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