منابع مشابه
5-Hydroxy-8-nitro-1,4-naphthoquinone
The title compound, C(10)H(5)NO(5), features an intra-molecular O-H⋯O hydrogen bond, forming a six-membered ring with an S(6) ring motif. The nitro group makes a dihedral angle of 71.66 (5)° with the plane of the benzene ring to which it is bound. The two rings are almost coplanar, with a dihedral angle of 4.44 (5)°. Short inter-molecular distances between the centroids of the six-membered ring...
متن کاملFormation of 5-Hydroxy-3-methoxy-1,4-naphthoquinone and 8-Hydroxy-4-methoxy-1,2-naphthoquinone from Juglone
From the treatment of 5-hydroxy-1,4-naphthoquinone (juglone) with acetic anhydride and H2SO4 followed subsequently by treatment with methanolic HCl, 5-hydroxy-3-methoxy-1,4-naphthoquinone (3-methoxy juglone) and 8-hydroxy-4-methoxy-1,2-naphthoquinone were obtained as products rather than the anticipated product 2,5-dihydroxy-1,4-naphthoquinone (2-hydroxy juglone). The reaction and the identific...
متن کامل5-Chloro-8-hydroxy-6-methyl-1,4-naphthoquinone
The mol-ecule of the title compound, C(11)H(7)ClO(3), is planar, with a maximum deviation of 0.0383 (10) Å from the naphthoquinone plane. An intra-molecular O-H⋯O hydrogen bond generates an S(6) ring motif. The crystal packing is stabilized by inter-molecular C-H⋯O hydrogen bonds. Short intra-molecular Cl⋯O [2.8234 (8) Å] and O⋯O [2.5530 (11) Å], and inter-molecular Cl⋯Cl [3.2777 (3) Å] contact...
متن کاملIsj 8: 5-14, 2011
Autophagy is a cellular pathway that leads to the degradation of proteins and organelles. This process is usually involved in the maintenance of cell homeostasis when the organism experiences nutrient starvation, but in holometabolous insects autophagy also intervenes in the demolition of larval tissues and organs during metamorphosis. This review summarizes the current knowledge about autophag...
متن کاملDetermination of Juglone (5-hydroxy 1,4-naphthoquinone) in Pterocarya fraxinifolia by RP-HPLC
A method for determination of juglone in leaves and hulls of Pterocarya fraxinifolia was developed, based on RP-HPLC. This compound was extracted from leaves and hulls by chloroform refluxing about 2 hours. The chloroform was evaporated under low pressure at 50 ºC to produce a dry residue. The remained materials were dissolved in acetonitrile to be used for determination of this compound....
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ژورنال
عنوان ژورنال: Acta Crystallographica Section E Structure Reports Online
سال: 2008
ISSN: 1600-5368
DOI: 10.1107/s1600536808021594