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39565

Sigma-Aldrich

1,3-Dimethylbarbituric acid

≥99.0% (T)

Sinônimo(s):

1,3-Dimethyl-2,4,6(1H,3H,5H)-pyrimidinetrione

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About This Item

Fórmula empírica (Notação de Hill):
C6H8N2O3
Número CAS:
769-42-6
Peso molecular:
156.14
Beilstein:
139810
Número CE:
212-211-7
Número MDL:
MFCD00006675
Código UNSPSC:
12352100
ID de substância PubChem:
57649861
NACRES:
NA.22
Preço e disponibilidade não estão disponíveis no momento.

Ensaio

≥99.0% (T)

Formulário

solid

resíduo de ignição

≤0.1%

pf

121-123 °C (lit.)
123-126 °C

solubilidade

hot water: soluble 0.5 g/10 mL, clear, colorless to faintly yellow

cadeia de caracteres SMILES

CN1C(=O)CC(=O)N(C)C1=O

InChI

1S/C6H8N2O3/c1-7-4(9)3-5(10)8(2)6(7)11/h3H2,1-2H3

chave InChI

VVSASNKOFCZVES-UHFFFAOYSA-N

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Descrição geral

1,3-Dimethylbarbituric acid (1,3-Dimethyl-2,4,6(1H,3H,5H)-pyrimidinetrione) is an active methylene compound. It undergoes hollow Pd6 water-soluble cage, [{(tmen)Pd}6(timb)4](NO3)12 (tmen= N,N,N′,N′-tetramethylethylenediamine, timb=1,3,5-tris(1-imidazolyl)benzene)-catalyzed Knoevenagel condensation reaction with pyrene-1-carboxaldehyde.[1] It undergoes self-sorted Pd7 molecular boat having an internal nanocavity (catalyst)-assisted Knoevenagel condensation reaction with various aromatic aldehydes.[1] It has been synthesized by reacting 1,3-dimethylurea, malonic acid and acetic anhydride in acetic acid. It is widely used for the synthesis of various synthetic intermediates and heterocyclic compounds.[2]

Aplicação

1,3-Dimethylbarbituric acid may be used in the following studies:
  • Enantioselective synthesis of isochromene pyrimidinedione derivatives having five stereocenters, via one-pot Michael-Knoevenagel condensation-inverse-electron-demand hetero-Diels-Alder reaction.[3]
  • Synthesis of 5-aryl-6-(alkyl- or aryl-amino)-1,3-dimethylfuro [2,3-d]pyrimidine derivatives.[4]
  • Microwave promoted indirect functionalization of alcohols, via spirocyclisation employing a sequential one-pot Ir(III)/Pd(0) catalyzed process.[5]

Pictogramas

CorrosionExclamation mark
GHS05,GHS07

Palavra indicadora

Danger

Frases de perigo

H302,H318

Classificações de perigo

Acute Tox. 4 Oral - Eye Dam. 1

Código de classe de armazenamento

11 - Combustible Solids

Classe de risco de água (WGK)

WGK 1

Ponto de fulgor (°F)

Not applicable

Ponto de fulgor (°C)

Not applicable

Equipamento de proteção individual

dust mask type N95 (US), Eyeshields, Gloves

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Certificados de análise (COA)

Lot/Batch Number
WXBF5304V
WXBF4949V
WXBF3419V
WXBF4111V
WXBF3992V

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Sigma-Aldrich

A4382

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Shahram Lotfi et al.
Materials science & engineering. C, Materials for biological applications, 76, 153-160 (2017-05-10)
Electrochemical oxidation of trimipramine in the absence and presence of 1,3 dimethyl barbituric acid as a nucleophile in aqueous solution has been studied using cyclic voltammetry and controlled-potential coulometry electrolysis. Voltammetric studies of electro-oxidation of trimipramine were realized in a
Christian Löfberg et al.
Chemical communications (Cambridge, England), (48)(48), 5000-5002 (2006-12-06)
Microwave assisted indirect functionalization of alcohols with 1,3-dimethylbarbituric acid followed by spirocyclisation employing a sequential one-pot Ir(III)/Pd(0) catalysed process, involving the formation of three new C-C bonds, one spirocyclic ring and one di- or tri-substituted exocyclic alkene, is described.
1, 3-Dimethylbarbituric Acid
Argintaru OA.
e-EROS Encyclopedia of Reagents for Organic Synthesis. (2011)
María Victoria Roux et al.
The journal of physical chemistry. A, 115(14), 3167-3173 (2011-03-25)
This paper reports an experimental and computational thermochemical study on 1,3-dimethylbarbituric acid. The value of the standard (p° = 0.1 MPa) molar enthalpy of formation in the gas phase at T = 298.15 K has been determined. The energy of
Burkhard Knopf et al.
Environmental science and pollution research international, 28(13), 16244-16252 (2020-12-18)
Cyanide compounds are naturally emitted into the environment in low levels by degradation processes or emitted from anthropogenic sources. In surface water, complex cyanide compounds as well as "free cyanide" are present. The latter term covers hydrogen cyanide and cyanide
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Artigos

Knoevenagel Condensation Reaction

Knoevenagel Condensation is an organic reaction named after Emil Knoevenagel. It is a classic C-C bond formation reaction and a modification of the Aldol Condensation.

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    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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    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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