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Dibenzo[a,c]cyclooctene is a polycyclic aromatic hydrocarbon (PAH) consisting of two benzene rings fused to a cyclooctene ring. It is a colorless solid with a molecular formula of C20H14 and a molecular weight of 254.32 g/mol. Dibenzo[a,c]cyclooctene is known for its potential environmental and health impacts, as it is a member of a class of compounds that can be carcinogenic and mutagenic. Dibenzo[a,c]cyclooctene is not as widely studied as some other PAHs, but it is still of interest due to its presence in certain environmental samples and its potential role in chemical reactions. It is typically formed during the incomplete combustion of organic materials, such as in the production of coal tar and as a byproduct in certain industrial processes. The compound's structure and properties make it a subject of study in the fields of organic chemistry and environmental science.

217-22-1

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217-22-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 217-22-1 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 2,1 and 7 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 217-22:
(5*2)+(4*1)+(3*7)+(2*2)+(1*2)=41
41 % 10 = 1
So 217-22-1 is a valid CAS Registry Number.

217-22-1SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 17, 2017

Revision Date: Aug 17, 2017

1.Identification

1.1 GHS Product identifier

Product name (+/-)-dibenzo(a,c)cyclooctene

1.2 Other means of identification

Product number -
Other names Dibenzo(a,c)cyclooctatetraene

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:217-22-1 SDS

217-22-1Relevant academic research and scientific papers

A convenient synthesis of dibenzo[a,c]cyclooctene based on thioenol ether reduction

Lottaz, Pierre Andre,Edwards, Timothy R. G.,Mentha, Yves G.,Burger, Ulrich

, p. 639 - 642 (2007/10/02)

9,10,11,12-Tetrahydrodibenzo[a,b]cyclooctane-9,12-diol (6) is found to be reluctant to double bond forming elimination. It gives a bridge ether (7) instead. The corresponding diketone (5) reacts with benzyl mercaptan to provide the bis-thioenol ether (8-a

The Photochemical Synthesis and Denitrogenation of 8,9-Diazodibenzoisobullvalene

Burger, Ulrich,Mentha, Yves G.,Millasson, Patricia,Lottaz, Pierre-Andre,Mareda, Jiri

, p. 1722 - 1728 (2007/10/02)

Starting from dibenzocyclooctene (4) and 4-methyl-3H-1,2,4-triazol-3,5(4H)-dione (MTAD), the strained skeleton of the title azo compound 1 is assembled in a tandem photo-Diels-Alder addition/di-?-methane rearrangement sequence.The synthesis is completed by a stepwise hydrolytic oxydation of the ensuing triazolidinedione 2 with nickel peroxide.Thermolysis of 1 in benzene solution is shown to be governed by an initial 1,3-dipolar cycloreversion which leads, via an intermediate diazo compound 11, to cyclobutaphenanthrene 8 and two further carbene-derived C16H12 products.Photolysis of 1 at 350 nm leads in modest yield (12percent), via a diazenyl diradical, to an unstable bridged bicyclobutane 10 (dibenzooctavalene).MNDO calculations suggest the latter to have a rapidly inverting, twisted structure of C2 symmetry.

BARRIERS TO RING INVERSION IN DIBENZOCYCLOOCTENE AND ITS DIHYDRO AND TETRAHYDRO DERIVATIVES BY RACEMIZATION AND NMR BANDSHAPE STUDIES

Rashidi-Ranjbar, Parviz,Sandstroem, Jan

, p. 1537 - 1540 (2007/10/02)

Dibenzocyclooctene and its 9,10-dihydro and 9,10,11,12-tetrahydro derivatives have been resolved by chromatography and their inversion barriers determined by thermal racemization.The 9,12-dihydro derivative has been studied by 1H NMR bandshape technique.

5,6-Didehydro-7-bromodibenzocyclooctene and 5,6-Didehydro-8-tert-butoxydibenzocyclooctene as Reactive Intermediates. A Convenient Synthesis of Dibenzocyclooctene

Wong, Henry Nai Ching,Sondheimer, Franz

, p. 2438 - 2440 (2007/10/02)

A convenient synthesis of dibenzocyclooctene (8) is described, which on bromination yielded 5,6,7,8-tetrabromo-5,6,7,8-tetrahydrodibenzocyclooctene (3).Dehydrobromination of 3 led to 6,7-dibromodibenzocyclooctene (9), 5-tert-butoxy-7-bromod

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