39579
2,5-二甲基-对苯醌
≥98.0%
别名:
2,5-二甲基-2,5-环己二烯-1,4-二酮, 2,5-二甲基-p-醌, 2,5-二甲基对苯醌, 2,5-二甲基苯醌, 3,6-二甲基对苯醌
方案
≥98.0%
mp
123-125 °C
溶解性
toluene: soluble 0.5 g/10 mL, clear to faintly turbid, yellow to brown
官能团
ketone
SMILES字符串
CC1=CC(=O)C(C)=CC1=O
InChI
1S/C8H8O2/c1-5-3-8(10)6(2)4-7(5)9/h3-4H,1-2H3
InChI key
MYKLQMNSFPAPLZ-UHFFFAOYSA-N
一般描述
2,5-二甲基-1,4-苯醌是醌衍生物。在 pH 7.8 的磷酸盐缓冲液中研究了其与刀豆脲酶的反应。它是棘头虫防御性分泌的成分之一。在 pH 7.0 的 50 mM 磷酸盐缓冲液中，对其作为刀豆脲酶抑制剂进行了研究。
应用
2,5-二甲基-1,4-苯醌可能用于参与 (-) -胱抑素 A 3 全合成的关键步骤。
警示用语：
Danger
危险分类
Acute Tox. 3 Oral - Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
靶器官
Respiratory system
储存分类代码
6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
WGK
WGK 3
闪点(°F)
Not applicable
闪点(°C)
Not applicable
个人防护装备
dust mask type N95 (US), Eyeshields, Faceshields, Gloves
Dale E Ward et al.
Organic letters, 9(15), 2843-2846 (2007-06-22)
The total synthesis of (-)-cyathin A3 is described. The key step involves an unusual enantioselective Diels-Alder reaction of 2,5-dimethyl-1,4-benzoquinone with 2,4-bis(trimethylsilyloxy)-1,3-pentadiene, using Mikami's catalyst [(R)-BINOL + Cl2Ti(OiPr)2 + 4 A mol sieves] modified by addition of Mg and SiO2. Because
Thomas Eisner et al.
The Journal of experimental biology, 207(Pt 8), 1313-1321 (2004-03-11)
The opilionid Acanthopachylus aculeatus was shown to produce a defensive secretion containing quinones (2,3-dimethyl-1,4-benzoquinone, 2,5-dimethyl-1,4-benzoquinone and 2,3,5-trimethyl-1,4-benzoquinone), confirming the findings reported nearly a half century ago in a classic study. The mechanism by which the opilionid puts the secretion to
T Yagi et al.
Journal of bioenergetics and biomembranes, 8(5), 247-255 (1976-10-01)
The regulation by adenylates of activities of various partial electron transport systems in spinach chloroplasts was studied using systems from H2O to 2,5-dimethyl-p-benzoquinone, H2O to 2,6-dichlorophenolindophenol, reduced 2,6-dichlorophenolindophenol to methyl viologen, and H2O to methyl viologen or ferricyanide. Adenylates regulated
P Mäenpää et al.
Plant molecular biology, 38(6), 1191-1200 (1998-12-30)
Ala-251 in the membrane-parallel helix in the D-E loop of the D1 polypeptide close to the Q(B) pocket of photosystem II (PS II), was mutated to aspartate (D), lysine (K), leucine (L) or serine (S) in Synechocystis 6803. O2 evolution
J Cao et al.
Biochimica et biophysica acta, 1015(2), 180-188 (1990-02-02)
Upon illumination, a dark-adapted photosynthetic sample shows time-dependent changes in chlorophyll (Chl) a fluorescence yield, known as the Kautsky phenomenon or the OIDPS transient. Based on the differential effects of electron acceptors such as 2,5-dimethyl-p-benzoquinone (DMQ) and 2,6-dichloro-p-benzoquinone (DCBQ) on
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