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173168-31-5

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173168-31-5 Usage

General Description

1,3,5-Cycloheptatriene, 1,6-diethynyl- (9CI) is a chemical compound with the molecular formula C10H6. It is a cycloalkene with three double bonds and two terminal acetylene groups attached to the carbon atoms at positions 1 and 6. 1,3,5-Cycloheptatriene, 1,6-diethynyl- (9CI) is a highly reactive and unstable molecule, and it is commonly used as a building block in organic synthesis and as a ligand in coordination chemistry. Its unique structure and reactivity make it a valuable tool in the development of new materials and pharmaceuticals. However, it should be handled with caution due to its potential for explosive decomposition under certain conditions.

Check Digit Verification of cas no

The CAS Registry Mumber 173168-31-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,3,1,6 and 8 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 173168-31:
(8*1)+(7*7)+(6*3)+(5*1)+(4*6)+(3*8)+(2*3)+(1*1)=135
135 % 10 = 5
So 173168-31-5 is a valid CAS Registry Number.

173168-31-5Downstream Products

173168-31-5Relevant articles and documents

Synthesis of 1,6-diethynylcyclohepta-1,3,5-triene and its oxidative coupling to dimethano-bridged octadehydroannulene and trimethano-bridged dodecadehydroannulene

Ojima, Juro,Daimon, Tomoyo,Hiraiwa, Naoki,Higuchi, Hiroyuki,ueno, Masako,Yamamoto, Gaku

, p. 2795 - 2802 (2007/10/02)

1,6-Diethynylcyclohepta-1,3,5-triene 27 was synthesized from 1,6-diacetylcyclohepta-1,3,5-triene 24.Oxidative coupling of the diacetylene 27 with copper(II) acetate in pyridine (Eglinton conditions) led to the cyclic 'dimer', a dimethano-bridged octadehydroannulene 28, in 18percent yield and the cyclic 'trimer', a trimethano-bridged dodecadehydroannulene 29, in 19percent yield.Both compounds 28 and 29 consisted of an equilibrating mixture of two conformers which differed in the relative disposition of the methano bridges.Oxidative coupling of compound 27 with oxygen, copper(I) chloride and ammonium chloride (Glaser conditions) afforded 2,3,4,5-tetrachloro-1,6-methanoannulene 32 in 3.5percent yield together with compounds 28 and 29.

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