Merck
CN

39565

Sigma-Aldrich

1,3-二甲基巴比妥酸

≥99.0% (T)

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别名:
1,3-二甲基-2,4,6(1H,3H,5H)-嘧啶三酮
经验公式(希尔记法):
C6H8N2O3
CAS号:
分子量:
156.14
Beilstein:
139810
EC 号:
MDL编号:
PubChem化学物质编号:
NACRES:
NA.22

质量水平

检测方案

≥99.0% (T)

形式

solid

灼烧残渣

≤0.1%

mp

121-123 °C (lit.)
123-126 °C

溶解性

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

SMILES string

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

InChI key

VVSASNKOFCZVES-UHFFFAOYSA-N

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一般描述

1,3-二甲基巴比妥酸(1,3-二甲基-2,4,6(1H,3H,5H)-嘧啶三酮)是活性亚甲基化合物。它经历空心 Pd6 水溶性笼,与芘-1-甲醛,[{(tmen)Pd} 6(timb)4](NO312(tmen =N,N,N′,N′-四甲基乙二胺,timb = 1,3,5-tris (1-咪唑基)苯)催化的诺文葛尔缩合反应。它经过自分选的 Pd7 分子舟实验,其与各种芳香醛,具有内部纳米腔(催化剂)辅助的诺文葛尔缩合反应。它通过 1,3-二甲基脲、丙二酸和乙酸酐在乙酸中反应合成。它广泛用于合成各种合成中间体和杂环化合物。

应用

1,3-二甲基巴比妥酸可用于以下研究:
  • 具有五个立体中心的异色烯嘧啶二酮衍生物的对映选择性合成,通过一锅式迈克尔-诺文葛尔缩合-反电子-需要杂-狄尔斯-阿尔德反应。
  • 5-芳基-6-(烷基 - 或芳基 - 氨基)-1,3-二甲基呋喃[2,3-d]嘧啶衍生物的合成。
  • 微波促进醇的间接官能化,通过使用顺序一锅式 Ir(III)/Pd(0) 催化过程的螺环化。

象形图

CorrosionExclamation mark

警示用语:

Danger

危险声明

危险分类

Acute Tox. 4 Oral - Eye Dam. 1

储存分类代码

11 - Combustible Solids

WGK

WGK 1

闪点(°F)

Not applicable

闪点(°C)

Not applicable

个人防护装备

dust mask type N95 (US), Eyeshields, Gloves


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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
Malek Taher Maghsoodlou et al.
Molecular diversity, 15(1), 227-231 (2010-07-14)
5-Aryl-6-(alkyl- or aryl-amino)-1,3-dimethylfuro [2,3-d]pyrimidine derivatives were obtained by in situ reaction alkyl or aryl isocyanides and pyridinecarbaldehyde derivatives in the presence of 1,3-dimethylbarbituric acid in dichloromethane without any prior activation or modifications.
Dipak Samanta et al.
Chemical communications (Cambridge, England), 49(39), 4307-4309 (2013-01-09)
Unique three-component self-assembly of a cis-blocked 90° Pd(II) acceptor with a mixture of tri- and tetra-imidazole donors led to the self-sorting of a Pd7 molecular boat with an internal nanocavity, which catalyses the Knoevenagel condensation of a series of aromatic
Bor-Cherng Hong et al.
Organic letters, 14(2), 448-451 (2011-12-27)
Synthesis of isochromene pyrimidinedione derivatives having five stereocenters has been achieved by a one-pot Michael-Knoevenagel condensation-inverse-electron-demand hetero-Diels-Alder reaction of α, β-unsaturated aldehydes, olefinic nitroalkanes, and 1,3-dimethylbarbituric acid via a one-pot strategy with excellent diastereo- and enantioselectivities (up to 99% ee).

商品

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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