5394-86-5

Basic information

• Product Name: 1H-INDENE,1-(PHENYLMETHYLENE)
• Synonyms: 1H-INDENE,1-(PHENYLMETHYLENE);1-(Phenylmethylene)-1H-indene
• CAS NO: 5394-86-5
• Molecular Formula: C₁₆H₁₂
• Molecular Weight: 204.27
• Mol File: 5394-86-5.mol
• Article Data: 8

Chemical Properties

• Boiling Point: 339.9°Cat760mmHg
• Flash Point: 169°C
• Appearance: /
• Density: 1.137g/cm³
• Vapor Pressure: 0.000175mmHg at 25°C
• Refractive Index: 1.69
• CAS DataBase Reference: 1H-INDENE,1-(PHENYLMETHYLENE)(CAS DataBase Reference)
• NIST Chemistry Reference: 1H-INDENE,1-(PHENYLMETHYLENE)(5394-86-5)
• EPA Substance Registry System: 1H-INDENE,1-(PHENYLMETHYLENE)(5394-86-5)

Safety Data

• Hazardous Substances Data: 5394-86-5(Hazardous Substances Data)

Usage

General Description

1H-INDENE,1-(PHENYLMETHYLENE) is a chemical compound with the molecular formula C15H12. It is also known as Indanone. It is a white to light yellow crystalline powder with a melting point of 41-43°C. 1H-INDENE,1-(PHENYLMETHYLENE) is used in the production of pharmaceuticals and as a building block for the synthesis of various organic compounds. It is also used in the manufacturing of fragrances, flavors, and other specialty chemicals. 1H-INDENE,1-(PHENYLMETHYLENE) is considered to be a potentially hazardous compound and should be handled with care in a laboratory or industrial setting.

InChI:InChI=1/C16H12/c1-2-6-13(7-3-1)12-15-11-10-14-8-4-5-9-16(14)15/h1-12H/b15-12+

Upstream product

• 16275-01-7 1-benzyl-1H-indene 
• 100-52-7 benzaldehyde 
• 95-13-6 1-indene 
• 132884-22-1 Lithium; (1H-inden-1-yl)-phenyl-methanolate 
• 776-75-0 N-benzoylpiperidine 
• 13343-78-7 1,4-diphenylbut-3-en-1-yne 
• 81462-45-5 1-(phenylethynyl)-2-vinylbenzene 
• 2732-90-3 5-methylene-10,11-dihydro-5H-dibenzo[a,d]cycloheptene 
• 20669-47-0 indenyllithium 
• 100-44-7 benzyl chloride 
• 10136-84-2 Indenyl-⁽³⁾-magnesiumbromid 

Downstream Products

• 871886-37-2 3-benzhydryl-indene 
• 109876-96-2 tricarbonyl(1-6-η-6-phenyl-1,2-benzofulvene)chromium 
• 109876-96-2 tricarbonyl(1,2,1',2',3',4'-6-phenylbenzofulvene)chromium 

Relevant articles and documents

The Missing C1-C5 Cycloaromatization Reaction: Triplet State Antiaromaticity Relief and Self-Terminating Photorelease of Formaldehyde for Synthesis of Fulvenes from Enynes

The last missing example of the four archetypical cycloaromatizations of enediynes and enynes was discovered by combining a twisted alkene excited state with a new self-terminating path for intramolecular conversion of diradicals into closed-shell products. Photoexcitation of aromatic enynes to a twisted alkene triplet state creates a unique stereoelectronic situation, which is facilitated by the relief of excited state antiaromaticity of the benzene ring. This enables the usually unfavorable 5-endo-trig cyclization and merges it with 5-exo-dig closure. The 1,4-diradical product of the C1-C5 cyclization undergoes internal H atom transfer that is coupled with the fragmentation of an exocyclic C-C bond. This sequence provides efficient access to benzofulvenes from enynes and expands the utility of self-terminating aromatizing enyne cascades to photochemical reactions. The key feature of this self-terminating reaction is that, despite the involvement of radical species in the key cyclization step, no external radical sources or quenchers are needed to provide the products. In these cascades, both radical centers are formed transiently and converted to the closed-shell products via intramolecular H-transfer and C-C bond fragmentation. Furthermore, incorporating C-C bond cleavage into the photochemical self-terminating cyclizations of enynes opens a new way for the use of alkenes as alkyne equivalents in organic synthesis.

Flow-vacuum pyrolysis of polycyclic compounds. 12: Pyrolysis of 10,11-dihydro-5-methylene-5H-dibenzo[a,d]cycloheptene and of 10,11-dihydro-5-methyl-5H-dibenzo[a,d]cycloheptene

Flow-vacuum pyrolyses of the title hydrocarbons afford anthracene and 9-methylanthracene as main products. The reaction mechanism suggested by Trahanovsky 2 for pyrolysis of dibenzocyclooctene- and dibenzocycloheptene derivatives is confirmed. For secondary products, parallel radicalic routes are suggested.

A novel C-H insertion via deoxygenation of amides by a Sm/SmI2 mixed system

A samarium/samarium diiodide mixed system successfully effects novel aminocyclopropanation and C-H insertion via the deoxygenation of amides. Styrenes undergo aminocyclopropanation by the reaction with aromatic amides, samarium metal, and samarium diiodide. Furthermore, the reaction of aliphatic amides with Sm/SmI2 in the presence of alkylbenzenes like toluene causes benzylic C-H insertion giving the corresponding phenylethylamine derivatives in good yields.