4705-93-5

Basic information

• Product Name: 1,4-Epoxynaphthalene, 1,4-dihydro-1,4-dimethyl-
• CAS NO: 4705-93-5
• Molecular Formula: C12H12O
• Molecular Weight: 172.227
• Mol File: 4705-93-5.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 1,4-Epoxynaphthalene, 1,4-dihydro-1,4-dimethyl-(CAS DataBase Reference)
• NIST Chemistry Reference: 1,4-Epoxynaphthalene, 1,4-dihydro-1,4-dimethyl-(4705-93-5)
• EPA Substance Registry System: 1,4-Epoxynaphthalene, 1,4-dihydro-1,4-dimethyl-(4705-93-5)

Safety Data

• Hazardous Substances Data: 4705-93-5(Hazardous Substances Data)

Usage

Physical state

Colorless, oily liquid

Uses

Industrial processes, chemical research, synthesis of organic compounds, production of dyes and other chemical products

Structure

Cyclic with a reactive epoxide ring

Health hazards

Potential health hazards, should be handled with care and used with proper safety protocols

Upstream product

• 625-86-5 2,5-dimethylfuran 
• 7579-74-0 1-(tri-n-butylstannyl)-2-fluorobenzene 

Downstream Products

• 457625-27-3 (1R,2S)-(+)-2-ethyl-1,4-dimethyl-1,2-dihydronaphth-1-ol 
• 457625-27-3 (1S,2R)-(-)-2-ethyl-1,4-dimethyl-1,2-dihydronaphth-1-ol 
• 1448311-46-3 1,4-dimethyl-2-(2-phenyl-2-propenyl)naphthalene 
• 571-58-4 1,4-dimethylnaphthalene 
• 1239667-69-6 (1R,2R)-2-(phenylamino)-1,2-dihydronaphthalen-1-ol 

Relevant articles and documents

Attempts directed towards the synthesis of intermediate (aryne)chromium complexes from aryl triflates and from (haloarene)chromium complexes

The generation of (I·6-aryne)chromium complexes as reactive intermediates was investigated in two ways. Although earlier attempts directed towards triflate eliminations from a variety of tricarbonyl(phenyl triflate)chromium complexes had failed, more electron-rich phenyl triflate complexes were considered. This was accomplished either by substitution with two methoxy groups in the arene ligand or by replacement of one of the three carbonyl ligands of the tricarbonylchromium complex with triphenylphosphane. However, the attempted elimination still did not take place; in spite of the increased electron densities in the aromatic ligands, anionic thia-Fries rearrangements were observed in high yields at -78 °C. As an alternative, elimination of lithium fluoride was tested. Tricarbonyl(2-lithiofluorobenzene) chromium(0) was generated by tin/lithium exchange. After hydrolytic workup, tricarbonyl(fluorobenzene)chromium was obtained as the main product, indicating that the lithiation step had been successful. A dimeric side product provided evidence for the intermediacy of (benzyne)tricarbonylchromium. Copyright