Cas 116263-45-7,<2-(2,4,6-Cycloheptatrien-1-yl)-1-phenylethyliden>propandinitril

116263-45-7

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Basic information

Product Name: <2-(2,4,6-Cycloheptatrien-1-yl)-1-phenylethyliden>propandinitril
Synonyms: <2-(2,4,6-Cycloheptatrien-1-yl)-1-phenylethyliden>propandinitril
CAS NO:116263-45-7
Molecular Formula:
Molecular Weight: 258.323
EINECS: N/A
Product Categories: N/A

Chemical Properties

Melting Point: N/A
Boiling Point: N/A
Flash Point: N/A
Appearance: N/A
Density: N/A
Refractive Index: N/A
Storage Temp.: N/A
Solubility: N/A
CAS DataBase Reference: <2-(2,4,6-Cycloheptatrien-1-yl)-1-phenylethyliden>propandinitril(CAS DataBase Reference)
NIST Chemistry Reference: <2-(2,4,6-Cycloheptatrien-1-yl)-1-phenylethyliden>propandinitril(116263-45-7)
EPA Substance Registry System: <2-(2,4,6-Cycloheptatrien-1-yl)-1-phenylethyliden>propandinitril(116263-45-7)

Safety Data

Hazard Codes: N/A
Statements: N/A
Safety Statements: N/A
WGK Germany:
RTECS:
HazardClass: N/A
PackingGroup: N/A
Hazardous Substances Data: 116263-45-7(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 116263-45-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,6,2,6 and 3 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 116263-45:
(8*1)+(7*1)+(6*6)+(5*2)+(4*6)+(3*3)+(2*4)+(1*5)=107
107 % 10 = 7
So 116263-45-7 is a valid CAS Registry Number.

116263-45-7Upstream product

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116263-45-7Relevant academic research and scientific papers

Reversible Multicolor Photochromism of Dihydroazulene Crystals

Liepuoniute, Ieva,Commins, Patrick,Karothu, Durga Prasad,Schramm, Stefan,Hara, Hideyuki,Naumov, Pan?e

, p. 373 - 378 (2019)

The photochemical conversion of 1,8a-dihydroazulene-1,1-dicarbonitrile (DHA) to vinylheptafulvene (VHF) is a positive T-type photoswitch that is well understood in solution, but has not been explored in the solid state. Upon excitation with UV light, DHA

Optimized synthesis and detailed NMR spectroscopic characterization of the 1,8a-dihydroazulene-1,1-dicarbonitrile photoswitch

Broman, Soren Lindbaek,Brand, Sophie Lehn,Parker, Christian Richard,Petersen, Michael Axman,Tortzen, Christian Gregers,Kadziola, Anders,Kilsa, Kristine,Nielsen, Mogens Brondsted

experimental part, p. 51 - 67 (2011/06/19)

An economical and effective protocol for large scale synthesis of the 2-phenyl-1,8adihydroazulene-1,1-dicarbonitrile (DHA) photoswitch has been developed. This compound is ring-opened by light to a vinylheptafulvene (VHF), which is thermally closed back to DHA. This compound serves as an important starting material for dihydroazulene photoswitches incorporating a substituent in the seven-membered ring and as a reference compound for comparison of properties. A detailed NMR spectroscopic characterization has allowed the assignment of all proton and carbon signals. In addition, the compound was characterized by Xray crystallography. A correlation between the rate constant for thermal ring-closure of VHF to DHA and empirical parameters of solvent polarity (ET (30)) was established. ARKAT-USA, Inc.

Light-Sensitive Dihydroazulenes: Alternative Synthesis - The Influence of Alkyl Substituents at the Five-Memeered Ring on the Photochromic Behaviour

Gierisch, Sebastian,Daub, Joerg

, p. 69 - 76 (2007/10/02)

Starting from cycloheptatrienylium tetrafluoroborate (8) the dihydroazulenes 1 were synthesized via substituted cycloheptatrienes 10 - 13 as intermediates.The dicyanovinyl derivatives 12 and 13 were transformed into vinylheptafulvenes 2 by dehydrogenation

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