21758-86-1

Basic information

• Product Name: 1-(1-hydroxy-3,4-dioxo-3,4-dihydronaphthalen-2-yl)pyridinium
• CAS NO: 21758-86-1
• Molecular Formula: C₁₅H₉NO₃
• Molecular Weight: 252.2443
• Mol File: 21758-86-1.mol
• Article Data: 3

Chemical Properties

• CAS DataBase Reference: 1-(1-hydroxy-3,4-dioxo-3,4-dihydronaphthalen-2-yl)pyridinium(CAS DataBase Reference)
• NIST Chemistry Reference: 1-(1-hydroxy-3,4-dioxo-3,4-dihydronaphthalen-2-yl)pyridinium(21758-86-1)
• EPA Substance Registry System: 1-(1-hydroxy-3,4-dioxo-3,4-dihydronaphthalen-2-yl)pyridinium(21758-86-1)

Safety Data

• Hazardous Substances Data: 21758-86-1(Hazardous Substances Data)

Usage

General Description

1-(1-hydroxy-3,4-dioxo-3,4-dihydronaphthalen-2-yl)pyridinium is a chemical compound with a complex molecular structure. It consists of a pyridinium group attached to a naphthalenone moiety with hydroxy and carbonyl functional groups. The compound is a derivative of naphthalene and pyridine, and its precise chemical properties and functions are not widely documented in the literature. However, it may be used in organic synthesis, pharmaceutical research, or as a reagent in chemical reactions due to its unique structure and potential biological activity. Further study and analysis of its properties and potential applications may be necessary to fully understand the significance of this compound in the field of chemistry.

Upstream product

• 110-86-1 pyridine 
• 117-80-6 2,3-Dichloro-1,4-naphthoquinone 
• 7605-25-6 ethyl phenylsulfenylacetate 
• 480-41-1 naringenin 
• 1214-47-7 1-(2-hydroxyphenyl)-3-phenylprop-2-en-1-one 
• 107-91-5 cyanoacetic acid amide 

Downstream Products

• 110-86-1 pyridine 
• 34014-51-2 1-hydroxy-isoquinoline-4-carboxylic acid 
• 88-99-3 benzene-1,2-dicarboxylic acid 
• 528-46-1 phthalonic acid 
• 214-97-1 15,16-dithia-5,10-diazahexaphene 

Relevant articles and documents

Reaction of 2,3-dichloro-1,4-naphthoquinone with some active methylene compounds in different basic media

Reaction of 2,3-dichloro-1,4-naphthoquinone with some active methylene compounds, such as malononitrile and cyanoacetamide, under various basic conditions has been investigated. A mechanism for these reactions is proposed.

Heterocyclic Quinonoid Chromophoric Systems : Part V - Synthesis of 3,4-Phthaloyl-2-thiaquinolizine

Condensation of α-mercaptomethylpyridine with 1,4-naphthoquinone, 2-chloro-1,4-naphthoquinone and 2,3-dichloro-1,4-naphthoquinone leads to a number of quinonoid derivatives including the desired 2-α-pyridylmethylmercapto-1,4-naphthoquinone (XVI) and its 3-chloro derivative (XI).Cyclization of XVI and XI gives 3,4-phthaloyl-2-thiaquinolizine (I) which represents a new heterocyclic quinonoid chromophoric system.Plausible mechanisms for the formation of the different heterocyclic quinones are discussed.Interaction of 1,4-naphthoquinone with 1-mercaptomethylisoquinoline affords 8,9-benzo-3,4-phthaloyl-2-thiaquinolizine (XXI).The thiaquinolizines undergo sulphur extrusion on heating to m.p. or on treatment with alkaline dithionite to yield the corresponding 2,3-phthaloylpyrrocolines.