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5,10-dihydro-5,10-methanobenzo[8]annulene is a unique organic compound characterized by its annulene structure, which features a benzene ring fused with a cyclooctane ring. This molecule is known for its aromatic properties, stemming from the delocalized π-electron system that encompasses both the benzene and cyclooctane components. The "dihydro" prefix indicates that two hydrogen atoms are added across one of the double bonds in the annulene system, altering its electronic structure and potentially affecting its chemical reactivity. The "methano" bridge connects the benzene and cyclooctane rings, creating a strained three-membered ring that contributes to the molecule's stability and geometric constraints. 5,10-dihydro-5,10-methanobenzo[8]annulene is of interest in organic chemistry and materials science due to its potential applications in the development of novel materials and its intriguing electronic properties.

33627-04-2

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33627-04-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 33627-04-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,3,6,2 and 7 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 33627-04:
(7*3)+(6*3)+(5*6)+(4*2)+(3*7)+(2*0)+(1*4)=102
102 % 10 = 2
So 33627-04-2 is a valid CAS Registry Number.

33627-04-2SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 18, 2017

Revision Date: Aug 18, 2017

1.Identification

1.1 GHS Product identifier

Product name AC1L3JUE

1.2 Other means of identification

Product number -
Other names 5,10-Methanobenzocyclooctene,5,10-dihydro

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:33627-04-2 SDS

33627-04-2Downstream Products

33627-04-2Relevant academic research and scientific papers

THE FACILE ISOMERIZATION OF BENZO(8,9)BICYCLO(5.2.0)NONA-2,4,8-TRIENE TO BENZO(7,8)BICYCLO(4.2.1)NONA-2,4,7-TRIENE PROMOTED BY L3M(CO)3 COMPLEXES (M=Cr, Mo, W). THE CRYSTAL STRUCTURE OF THE TRICARBONYL COMPLEX OF BENZO(7,8)BICYCLO(4.2.1)NONA-2,4,7-TRIENE

Berno, Piero,Ceccon, Alberto,Dapra, Francesca,Gambaro, Alessandro,Venzo, Alfonso,et al.

, p. 161 - 172 (1986)

Benzo(8,9)bicyclo(5.2.0)nona-2,4,8-triene (I) isomerizes to benzo(7,8)bicyclo(4.2.1)nona-2,4,7-triene (II) in the presence of L3M(CO)3 complexes (L=CO, NH3, CH3CN; M=Cr, MO, W).In THF at 40 deg C with (CH3CN)3CrCO3 the uncomplexed II is formed together with smaller amounts of the corresponding η6-tricarbonylchromium complex, TCC-II.In n-butyl ethwer at 120 deg C with (NH3)3Cr(CO)3 the main product is the latter complex.The structure of TCC-II has been determined by NMR and X-ray analysis.

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